http://www.pdworld.com/document/PDi_3_2008

Tight Bathroom Renovation p. 57 Volume 8 • No. 3 Aug - Sept 08

Special Survey:

Australia & New Zealand pages: 16-26 Shows:

SAIE 2008 page: 29

Associations:

IACDS Annual Meeting 2009 set to Dublin

page: 66

Reports:

The Bolander Way pages: 12-15

Special Feature:

Wall & Wire Saws pages: 32-37

Special Feature:

Wet & Dry Collectors pages: 42-46

Special Feature:

Compact Equipment pages: 48-51 Implosion

Coleman in kilts pages: 60-61

Exclusive News!

What is it? ...is it a... pages: 38-40

Great Market Potential for ICS Blount in Europe pages: 59

Hilti VC 60-U wet / dry vacuum cleaner

Dust safely under control.

Hilti. Outperform. Outlast.

The new Hilti VC 60-U wet / dry vacuum cleaner keeps dust at the workplace to an absolute minimum. Featuring constant, impressively high suction performance and a container volume of 72 liters, this universal vacuum cleaner is built to handle drilling slurry, dirty water or dust equally well.

It’s thus the perfect companion for a whole range of Hilti power tools and machines.

Hilti Corporation I 9494 Schaan I Liechtenstein I www.hilti.com

102

CONTENTS PDi • issue no. 3 Aug - Sept 08 • volume 8

REGULARS

Professional Demolition International Magazine

Editorial

Address: P.O. Box 786, SE-191 27 Sollentuna, SWEDEN

6

Robot Boom!

Visitors address: Skillingevagen 14A., SE-192 71 Sollentuna, SWEDEN

Going green in More ways than one

Phone:

+46 8 631 90 70

Business

Telefax:

+46 8 585 700 47

8

E-mail:

info@pdworld.com

Case Construction Equipment Announces Key Appointment

Website:

www.pdworld.com

Caterpillar milestone

ISSN Registration:

ISSN 1650-979X

Doosan Infracore acquires Moxy

New start for JCB

New chapter for Tyrolit Australia

HTC strengthens Group Management

Mantovanibenne’s celebrates 45th anniversary

Hilti collect 19 design awards

Editor Recycling: Heikki Harri, heikki.harri@pp1.inet.fi

JCB excavator hot property at Antarctic research station

Editor North & South America Jim Parsons, jim.parsons@pdworld.com

2009 C&D World set for Tampa March 22-24

Editor Asia Pacific Silvana Wirepa, silvana@pdworld.com

Mantovanibenne Sponsor MX2 Yamaha Ricci Racing Team

Caterpillar’s Operator Challenge

Editor-in-Chief Jan Hermansson, Jan.Hermansson@pdworld.com Assisting Editor Anita do Rocio Hermansson, Anita.Hermansson@pdworld.com Editorial staff Editor Global: Mikael Karlsson, mikael.karlsson@pdworld.com Editor Demolition: Mark Anthony, mark.anthony@pdworld.com

Editor Russia Andrei Bushmarin, andrei.bushmarin@pdworld.com Editor Africa Kevin Mayhew, kevinm@addixion.co.za Publisher Jan Hermansson

International Sales Offices

Sweden, Norway & Denmark Contact the Editorial Office Phone: +46 (0)8 631 90 70, Fax: +46 (0)8 585 700 47 E-mail: info@pdworld.com Germany/Austria/Switzerland/ Liechtenstein/Finland Gunter Schneider GSM International Postfach 20 21 06 - D-41552 Kaarst Alma-Mahler-Werfel-Str. 15 - D- 41564 Kaarst Germany Phone: +49 2131 / 51 18 01 E-mail: gsm-international@web.de

10

12

29

Unfinished hotel imploded

FRD VS30FT crusher to Van Werven Recycling

CDC Demolition extends JCB Fleet

56

FRD assist in school project

Hydraulic breakers at Kamchatka

57

Italy Monica Colleoni & Romano Ferrario, Ediconsult Internazionale S.r.l.

Via Savona 97, 20144 Milano, Italy Phone: + 39 02 4771 0036, Fax: + 39 02 4771 1360 E-mail: milano@ediconsult.com

Rest of the world Contact the PDi head office.

The magazine PDI, Professional Demolition International is published four times per year with a worldwide circulation of 13000 copies. The annual airmail subscription rate is US$ 45. All subscription correspondance should be directed to: The subscription department, SCOP AB, P.O. Box 786, SE-191 27 Sollentuna, Sweden. PDI is mailed by second class postage paid at Stockholm, Sweden. © Copyright SCOP AB 2008

4

PDi • Issue 3 - 2008 • Aug - Sept

Demolition

A room with a view on the Atlas Copco CC 3300

Australia/New Zealand/Asia Pacific/Korea/Japan Contact PDi editorial office in Sweden.

Shows

SAIE goes “energetic”

54

UK/Ireland/France/Belgium/ the Netherlands/Spain/Portugal M. Stéphane de Rémusat, REM - Europe Media Service Chemin de la Bourdette, F-31380 Gragnague, France Phone: +33 (0)5 34 27 01 30, Fax: +33 (0)5 34 27 01 31, +33 (0)5 34 27 01 34, Mobile: +33 (0)6 80 84 43 78 E-mail : sremusat@aol.com

USA & Canada Contact PDi editorial office in Sweden.

Reports

The Bolander Way

52

Bathroom renovation

Recycling

Steep uphill recycling

NFDC waste figures highlight recycling challenge

In Memoriam of William Baker

NEWS 38 64

65

What is it? Is it a...new demolition robot?

Discs for grinding and cutting steel Dust free cutting indoors New flexible drilling system from Husqvarna ICS announces FORCE4 initiative Best result for medium to heavy duty joint cutting applications

Special Survey 16 22 26

26 28 28

Australia & New Zealand Concrete Cutting since the 1950s Historic Church Restoration in Queensland Cutting Holes the Holer Way Wall and wire sawing in Australian mine Lloyd, one of the concrete cutting icons in Australia

Special Feature 32

Wall & Wire Saws

Tight time frame no problem for Pentruder

Extec duo spearheads new recycling generation

62

New primary impact crusher from Telsmith

Master Magnets supplies overband magnets to SB Waste

Dry wire sawing in heavily reinforced concrete

Concrete Cutting

There are better ways to filter then with your lungs?

Implosion

58

60

66

Great market potential for ICS in Europe Coleman in kilts

Association News

Element Six Agrees to Sponsor 2009 Diamond at Work Conference

CSDA 2009 Convention in Cancun

37 42 46 48 49 50

51

Outdoor dustbusting with the new Dustboss DB-45 Compact equipment News rains from Bobcat CAT rolls out the new compact track loaders Stone adds larger Mud Buggy model

Robot Boom!

Dear Readers On the 11th September I had the opportunity as the only journalist to witness the official launch of a new remotely controlled demolition robot. This is the second time in two years I have been to the launch of a demolition robot. The first was at the Finnish manufacturer Finmac Demolition in Vaasa for the introduction of their F16 robot. In September it was the turn of the Swedish manufacturer Husqvarna Construction Products to unveil their new DXR 310 remotely controlled demolition robot after nearly two year’s of development costing over EUR 2.5M. The Swedish manufacturer Brokk AB has, since the 1970s, predominantly been the only manufacturer of demolition robots with very little competition from other similar types of demolition equipment. Very few alternative indoor demolition methods can compete with the efficiency, power, safety and environmental aspects that a demolition robot can offer. Now 30 years after the companies PE Holmgren and Rivteknik invented the first Brokk robot there are now two new competitors to emerge in the last couple of years.

I am not surprised as I have been expecting this for a long time. However, I am surprised it hasn’t happened earlier. In my opinion there is plenty of space in the market for three or four demolition robot manufacturers as there is also a German demolition robot called Top Tec, which has been around for many years. Top Tec’s founder was once a representative for Brokk in Germany.

The concept of the demolition robot is excellent as it is electrically driven, safe and powerful and is a perfect work tool for confined spaces. I have often wondered why manufacturers of compact excavating equipment have not competed in the remotely controlled demolition equipment business. But on the other hand a demolition robot and a mini excavator are two completely different products in many aspects, especially in their respective boom systems. Manufacturers of mini excavators and skid steers are also after much higher volumes then the demolition robot segment can offer, even though a demolition machine is much more expensive than a mini excavator.

It takes a lot of effort to develop a remotely controlled demolition robot. Maybe that is why the new competitors have taken their time. For more then 30 years Brokk has ploughed the furrow and developed its range of machines. Brokk has built up a strong reputation all over the world as a first class provider of equipment for a unique demolition method. But to be the only supplier has its disadvantages and competition is always good for progress and development.

With four manufacturers of remote controlled demolition robots, three from the Nordic region of Europe and one from Germany, the market can now expect a new era in demolition robots. There is more information about the new Husqvarna demolition robot on pages XX and xx.

In addition we are also publishing in this issue a survey from Australia and New Zealand, compiled by PDi’s editor Silvana Wirepa. There are also features on wall and wire saws as well as new compact equipment.

Jan Hermansson Editor-in-Chief jan.hermansson@pdworld.com

6

PDi • Issue 3 - 2008 • Aug - Sept

Words from O’Brien

Going green in More ways than one

IACDS has announced that it will hold it’s

struction, retrofitting old, energy-inefficient

2009 Annual Conference in Dublin, Ireland,

buildings. This support for “green” buildings

so I thought I’d get a plug in for the IACDS

could help the industry recover from a loss of

meeting to encourage members of the

800,000 jobs in the past two years.

sawing and drilling industry worldwide to

Construction trade shows are also

attend that meeting as well as to dedicate

adopting a “green” approach. The annual

this column to all things green!

World of Concrete exhibition in the U.S.

Sustainable design or building “green”

features a “Greensite” area with exhibitors

is a hot topic around the globe these days.

showcasing the latest green- build tech-

It has taken some time for the construction

nologies. The Concrete Sawing and Drilling

industry to catch on to all things “green,”

Association (CSDA) will sponsor a “Green”

but today such involvement is expected.

Roundtable at the 2009 World of Concrete

In the United States, the U.S. Green Build-

on Slurry Recycling. This event expands

ing Council (USGBC) is working to make

CSDA’s Best Practice Slurry Tips (CSDA-

green buildings available to everyone within

BP-001) that focused on water/slurry

a generation. They have established the

collection, disposal and recycling with a

Leadership in Energy and Environmental

goal to develop ideas for managing concrete

Design (LEED) Green Building Rating

slurry and to address industry and environ-

System™ that encourages and accelerates

mental concerns. The World of Concrete

global adoption of sustainable green building

Roundtable on Slurry Recycling will collect

and development practices. The concept

a set of best practices from participants

is centred on “principles that minimize the

and CSDA will then develop a document

use of nonrenewable resources and seek to

to represent the best of what is being done

prevent air, water and ground contamination

today and set a course for future direction

and other activities that degrade the environ-

including what the construction industry

ment.” The European Commission initiated

needs to do to properly address this aspect

the Green Building Programme (GBP). This

of going “green.”

programme aims at improving the energy

While the construction industry has,

efficiency and expanding the integration of

perhaps, been slow to embrace thew notion

renewable energies in non-residential build-

of “green” building, it appears that current

ings in Europe on a voluntary basis.

efforts are headed in the right direction.

Green for green’s sake might be an ad-

Perhaps IACDS can use the occasion of its

mirable endeavor, but it helps if it also served

2009 Annual Conference to go “green” in

as a stimulus to the economy. According to

Dublin in more ways than one.

a recent NewScientist.com report, a $100 billion U.S. government investment over two years could create 2 million “green” jobs in such industrial sectors as steel and con-

Best regards Patrick O’Brien President IACDS

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When grinding is at its best.

Scan Combiflex 700RC

Smaller jobs on larger surfaces.

sÂŹNo strain on operators sÂŹHigh capacity for removal and grinding sÂŹContinuity in grinding work sÂŹExact grinding speeds sÂŹRadio controlled

Scan Combiflex 650

Large and small alike.

Scan Combiflex 45 Scan Combiflex 500i

Snap On™ – One system, no problems!

Scan Combiflex 180EG

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Case Construction Equipment Announces Key Appointment Case Construction Equipment has appointed Israel Celli as Vice President Sales and Marketing to lead the European Region, reporting directly to CEO and President Jim McCullough.

“I am personally very pleased to have Israel back on the Case Construction Equipment team. His experience and focus on this market will continue to improve the support and service to both customers and distributors,” says McCullough.

Celli began his career at IBM Corporation before moving to Clark Equipment. He later joined Case Construction Equipment and stayed nearly five years and was responsible for the Latin American and Caribbean division. Maintaining his connection in construction equipment Celli went to JLG Industries where he stayed for eight years as a senior company officer in addition to his duties as Senior Vice President for International Sales, Marketing and Customer Support.

www.case.com

Caterpillar milestone Caterpillar recently reached the milestone of selling 100,000 mini excavators worldwide. To celebrate the event the company made an exclusive silver machine, which was supplied to a German company Matthäi, to complement the other 30 Caterpillar machines in the company’s fleet. Matthäi, will use the 100,000th mini hydraulic excavator as a demonstration machine covering all the company’s branches in Germany.

www.cat.com

Doosan Infracore acquires Moxy In August Doosan Infracore’s European subsidiary, DIEU, signed a contract to take over the Norwegian articulated dumptruck manufacturer Moxy Engineer-

ing AS, for EUR 55 million. Moxy, based in Molde, owns the source technology for 23 - 46 t class ADTs, and has a network of 61 dealers in Europe and North America, in addition to local sales corporations and research and development centres in the US and the UK. The world ADT market has grown by an average of 18% over the past 3 years due to brisker development of mines following the jump in raw material prices. In 2007 the world market for ADTs stood at 3.4 trillion won. Doosan Infracore plans to increase five fold the annual sales of Moxy to EUR 250 million (387.5 billion won) by 2012, fully utilizing its network of 300-plus dealers in China, Europe and North America.

“Although Moxy’s sales volume in 2007 was not so large at EUR54 million (83.3 billion won), it owns the source technology for ADTs,” says Doosan Infracore Senior Managing Director and Head of Construction Machinery BG Kim Dong-chul. “Thus it will play a pivotal role in the Infrastructure support business, if it smoothly links with Doosan Infracore’s ongoing business. Utilizing the takeover as a momentum, we will push ahead with a positive foray into the mining equipment market, in addition to the heavy construction equipment business.”

In March 2007, Doosan Infracore took over the Chinese wheeled loader manufacturer Yantai Yuhua Machinery Ltd in its bid to grow to be in the global top 3 of construction machinery manufacturers by 2012. In November 2007, the Company took over the Bobcat, Utility Equipment and Attachments businesses from Ingersoll Rand.

Australia with the relocation of the NSW Office to a premises more than twice the size allowing plenty of growth within the organization.

In Brisbane Tyrolit are also moving to new premises, and have officially opened their South Australian Branch.

Tyrolit Australia also would like to thank all the people who attended Tyrolit Australia’s first ever Open Day. This also doubled as the official launch of Tyrolit Australia. Both days were a huge hit with customers who were able to see a variety

Group AB, a global industry group within machinery, robotics and water jet cutting with 900 employees and a turnover of more than SEK 1500 million.

The present HTC Group CEO Sten Jeansson, will concentrate on business development in close cooperation with Lars Bergström. Sten Jeansson is 57 years old, has a Master of Science and after working mainly in different companies within the Saab Group, he has been president of companies for the last 20 years. Sten joined HTC in 2003 and has been president since 2004.

www.tyrolit.com

Mantovanibenne’s celebrates 45th anniversary The Italian construction equipment manufacturer Mantovanibenne is this year celebrating 45 years in the earth moving equipment business. The company based in Mirandola, near Modena, makes a range of equipment and attachments ranging from buckets and demolition equipment, such as crushers, pulverizers, rotating pulverizers, multisystems, shears, pile breakers, grapples, grabs, riddling buckets and quick couplers.

www.doosan.com

New start for JCB The UK’s JCB Heavy Products has completed the first phase of its move to a new £40 million purpose-built factory at Uttoxeter, Staffordshire that will produce wheeled and tracked excavators from 7t to 46t. The first machines have started to roll off the production lines at the new factory, which will enable JCB to increase capacity by more than 60% and assist in spearheading its drive to increase its global market share of the tracked and wheeled excavator market.

www.jcb.com

New chapter for Tyrolit Australia An exciting new chapter is occurring within Tyrolit

www.mantovanibenne.com

of demonstrations including hydraulic hand saws, core drilling, floor grinding and the spectacular wire saw that cut a Ford Falcon in half, engine block and steering column included. All this while enjoying a bite to eat and a cleansing ale in the company of our beautiful promotional girls who were dressed in traditional Austrian Dirndl’s.

www.tyrolit.com

HTC strengthens Group Management The Swedish based HTC Group is strengthening its management for future growth and appointed Lars Bergström as new President and CEO and will join the company in the autumn.

Lars Bergström is 50 years old, has a Master of Science and MBA degree and has worked 20 years within ABB in management positions within ABB Robotics and ABB Automation. The last 5 years, Lars have been President of KMT

8

PDi • Issue 3 - 2008 • Aug - Sept

Hilti collect 19 design awards Hilti products have won 19 awards in the iF product design and red dot awards in 2008 compared with 12 awards in 2007. The iF design award is sponsored by the International Forum Design in Hanover, Germany and the red dot award by the Design Zentrum Nordrhein Westfalen, also in Germany. These awards rank among the most prestigious design citations. Some 2000 products from roughly 40 countries are submitted each year for the iF product design awards alone.

www.hilti.com

We care for your lungs!

Dustcontrol has been designing systems for the source extraction of hazardous dust such as asbestos and silica within the construction industry for 36 years. In keeping with increased demands for cleanliness and efficiency the interest for source extraction is growing.

www.dustcontro www.dustcontrol.com ol.com

Mantovanibenne Sponsor MX2 Yamaha Ricci Racing Team

EVENTS CALENDAR Bauma China 2008 November 25-28, 2008 Shanghai New International Exhibition Centre, China www.bauma-china.com SAIE 2008 Octoberr 15-18, Bologna, Italy www.bolognafiere.it Byggmaskiner DemExpo 2009 January 20-23, 2009 Gothenburg Exhibition Centre www.bygg-maskiner.se www.demexpo.se World of Concrete 2009 February 3-6 Las Vegas, USA www.worldofconcrete.com 15th German Demolition Conference, 2009 March 20-21, Berlin, Germany www.asco-abbruch.de 2009 C&D World March 22-24, Tampa, USA www.cdrecycling.org Byggmaskiner DemExpo 2009 January 20-23, 2009 Gothenburg Exhibition Centre www.bygg-maskiner.se www.demexpo.se Intermat 2009 April 20-25 Paris Nord, Villepinte, France www.intermat.fr IACDS Annual Meeting, 2009 June, 2009 St Petersburg, Russia www.iacds.org

10

JCB excavator hot property at Antarctic research station A JCB excavator is meeting the challenges of extreme weather conditions on the world’s most remote building site. The 20t JCB JS 200LC tracked excavator works in temperatures as low as -25ºC at the scientific outpost at a polar and marine research station in the Antarctic.

The facility was established in 1981 by the German based Alfred-Wegener Institute to monitor the area’s meteorology, geophysics and atmospheric chemistry. The station needs replacing as it has sunk 12m below the ice and is danger of being crushed by the sheer mass of snow.

It will be superseded by the new NuemayerStation III, which is mounted on a platform, enabling the station to be raised by up to 1m a year to compensate for annual snowfall and subsidence.

The JS200LC, supplied by German JCB dealer Kähler, is used to lift and empty containers, carry steel packages and transport heavy material. It was chosen instead of a crane for its reach capability.

Malte Müller, who is in charge of site logistics, said: “The tracks allow optimum traction over the snow and ice and the rugged and easy-to-maintain design of the JS200LC has proved very effective for this application.”

The JCB JS200LC has a number of features which combat the tough and extreme Antarctic environment. As well as an external engine pre-heating facility, the machine is equipped with 1m track pads and a large load hook. Its electrically controlled fan maintains an optimum operating temperature, regardless

PDi • Issue 3 - 2008 • Aug - Sept

of external temperatures.

To reach the location, the JS200LC was loaded on to the Danish freighter Naja Artica together with the ready-to assemble sections of the new station, and sailed from Bremerhaven bound for the South Polar Sea.

The Italian company Mantovanibenne is sponsoring the MX2 Yamaha Ricci Racing Team for the 2008 World Championship with races in countries where Mantovanibenne is present with its sales network and Dealers.

The team’s riders are Davide Guarneri, Nicolas Aubin and Roberto Lombrici and the opening race was in April 2008 at the Valkenswaard circuit in Holland, followed by races in Spain, Portugal, Bulgaria and Mantova, the first of the two races in Italy.

There has been considerable interest among Mantovanibenne dealers and customers and the Company is now organizing Racing Tours with customers.

www.mantovanibenne.com

www.jcb.com

2009 C&D World Set For Tampa March 22-24 The Tampa Convention Center will be the site of C&D World, the 15-year-old international Construction & Demolition recycling summit that serves as the Annual Meeting of the Con-

struction Materials Recycling Association. With sessions on rail haul, recycled aggregates, C&D fines, upgrading a concrete recycling operation, gasification of C&D, and a markets panel developed by the US EPA, the forum will again be the best place to gain information on the recycling of concrete, asphalt, wood, drywall, asphalt shingles and metals. It allows recyclers from all over to gather and learn about the latest techniques and methods to recycle C&D, as well as talk with peers about their experiences, And for the first time ever, in 2009 C&D World will have equipment displays as part of the meeting, including machinery from Eagle Crusher, Morbark, General Kinematics, HAMMEL New York, Sandvik, and Western Retek and exhibitors such as LUBO USA, Komatsu, Bulk Handling Systems, KPI-JCI, Krause Manufacturing, Erin Recycling, and Machinex.

www.cdrecycling.org

Caterpillar’s Operator Challenge In November, and for the 11th consecutive year, Caterpillar will stage its international competition the Caterpillar Operator Challenge in Spain. Construction machinery operators from across Europe, the Middle East and CIS will set out to win this unique event to be held 2-7 November at Caterpillar’s Demonstration and Learning Centre in Malaga. To reach the Malaga finals participants must first win a series of local and national events. Based on the results, each country will then send the best operators to represent their country in Malaga. Last year the competition was won by Peter van Schaik from the Netherlands.

www.cat.com

'"45 "/% &''*$*&/5 )"/%4"8 )#) ͵͵͵ Ideal solution for small jobs Easy handling 200 mm cutting depth

A Company within the SWAROVSKI Group

The Bolan

An immigrant’s

earthmoving business grows into one of the

Within days of the collapse in the US of the I-35W bridge in downtown Minneapolis, Minnesota, crews from Carl Bolander & Sons Co. were on site to assist with the massive job of removing debris from a tragedy that had claimed 13 lives and riveted the nation’s attention on the safety of its infrastructure.

“More dismantling then demolition”

US Midwest’s leading demolition companies.

PDi’s North American Editor Jim Parsons reports.

Text: Jim Parsons Photo: Carl Bolander & Sons

12

Bolander workers faced the paradoxical challenge of safely clearing the debris as quickly as possible so that rebuilding could begin, but also address the complexities of a difficult location on the river, environmental concerns from lead paint and crushed rail cars on an underlying rail line, and the grim search for remaining victims.

“It was more of a dismantling project than a demolition, as the site was still being investigated by federal authorities,” explains Bolander President and CEO Mark Ryan. “Every move had to be carefully planned and executed, as you weren’t sure what would happen when moving pieces of the bridge.”

PDi • Issue 3 - 2008 • Aug - Sept

That Bolander was called on for such a complex project requiring both rapid response and deep resources is hardly surprising. As Minnesota’s largest demolition firm, St. Paulbased Bolander has successfully completed some of the most complex and difficult demolition projects in the Midwest, from stand-alone buildings to multi-block urban renewal programmes, from grain elevators to extensive bridges and other structures.

The impetus of an immigrant

Carl Bolander, Swedish immigrant and founder of Carl Bolander & Sons.

Bolander is also proof-positive that it is never too late in life to launch a successful business. Swedish immigrant Carl Bolander was 44 when he and sons Ivar and Eric founded the company in 1924 to move rubble and earth from Twin Cities building projects, using only hand labour and horse drawn carts. As the firm’s reputation grew, the Bolander family expanded their business by adding excavation and

nder Way grading services for homes and small commercial buildings.

Ivar Bolander took the reins of the company when Carl retired in 1941 and continued the firm’s diversification into pile driving, deep foundations and other construction infrastructure services. Although the company performed its first demolition project in the late 1940s, it was not until the 1970s

that Bolander, with Ivar’s son David now at the helm, began actively promoting its expertise in this area.

“As the buildings that were built at the turn of the century became outdated, there was a larger call for contractors that could perform demolition,” says Mark Ryan, who, in 2000, became the first non-Bolander family member to head

Picture to the left is showing from the left Mark Ryan and Rick O’Gara, current co-owners of Carl Bolander & Sons. And the former owners Dorothy and David Bolander. David is Carl Bolander’s grandson.

The picture below is showing the demolition of storage elevators in Klemme, Iowa.

Issue 3 - 2008 • Aug - Sept •

PDi 13

Pictures to the left and above showing the dismantling and demolition of the collapsed Minneapolis downtown I-35W bridge. This project is so far probably the most memorable project in the Bolander project history.

The two pictures below showing the demolition of the Four Bears Bridge in North Dakota.

14

the firm, and is now co-owner. “It was more of a demand and a market niche that developed.”

It did not take long for Bolander to become a leader in this arena as well, and in a big way. In 1979, the company performed the first major building implosion in Minneapolis when it levelled the old Dyckman Hotel to make way for the new City Centre retail complex. Over the years, Bolander has demolished other old buildings in downtown Minneapolis, helping reshape the city’s skyline and contribute to its emergence as one of the world’s 100 most liveable communities.

Bolander has also amassed an impressive inventory of equipment to help tackle a wide range of demolition challenges, including American and Link-Belt cranes, Caterpillar, Liebherr, and Komatsu large excavators, Kobelco small excavators, a Cat MP30 multiprocessor, Cat and John Deere loaders and Atlas Copco breakers.

To coincide with its entry into demolition, Bolander became Minnesota’s first to recycle concrete rubble into Class 5 aggregate. As environmental awareness grew in the 1980s, David Bolander’s wife Dorothy led the formation of SKB Environmental, one of the first waste disposal companies to serve the state’s construction industry. The Bolander subsidiary, now headed by Rick O’Gara, has designed and permitted several clay-lined landfills to process a wide range of construction and demolition debris. SKB has also expanded to handle industrial waste and municipal solid waste.

PDi • Issue 3 - 2008 • Aug - Sept

A reputation for resourcefulness Mark Ryan is quick to note that specializing in large-scale demolition projects requires the ability to continually tackle some tricky challenges. He points to the 17-storey Grand Hotel building near Minneapolis/St. Paul International Airport as an example.

“The building was a post-tensioned structure, so we had to make sure the loads were controlled when we took it down,” says Ryan. “And because we were so close to the airport, dust control was a major concern from the outset.”

The solution was a DustBoss DB-60 dust control system, which sprayed water vapour up to 60m high to create what Ryan called a “virtually dust-free” job site during the monthlong demolition process.

Another challenging milestone demolition project was the 1,373m. long Four Bear Bridge spanning Lake Sakakawea in North Dakota. When a new precast concrete segmental bridge was completed in 2005, Bolander used its expertise in explosives to blast the older structure and recover the major pieces using barge-mounted cranes.

Because winter comes early to North Dakota, speed was of the essence. “We began in August and were battling ice and wind in November before the lake started to freeze,” recalls Ryan. “It wasn’t until the following spring that we could go back and finish the last of the piers.”

Other assignments have required Bolander’s demolition

experts to synchronize their work with ongoing operations. At the 3M Abrasive and Tape Plant in St. Paul, for example, Bolander performed a staged 17-building environmental clean-up, demolition, material segregation project so that the plant could remain operational during a one-year decommissioning process. More than 45,000 t of concrete was recycled and reused, while approximately 960 t of brick, ceramics and chemical piping were handled as well.

This year, Bolander is wrapping up a one-year effort in the transition of a 7-acre theme park inside the US’s largest shopping and entertainment complex, the Mall of America. “We would go in at night to do interior demolition using propane-powered equipment for new rides, and other attractions, then make sure our clean-up was complete by 6 am the next day,” says Ryan.

Still, the I-35W bridge will top Bolander’s list of memorable projects for the foreseeable future. Completed in just over two months, the firm had as many as 60 people on site working 12-hour shifts six days a week to move 44,000 t of steel and 10,000 t of concrete. All of the concrete was recycled except for a small amount that was set aside for testing. The Minnesota Department of Transportation retained all of the steel as part of the ongoing investigation into the cause of the collapse.

“The effort was so large and intense that we were writing work plans on a daily basis to make sure we had the right personnel, equipment, and protective measures in place,” says Ryan. “But the planning paid off, as we and our subcontractors worked 32,000 hours without a lost-time accident. And, we were part of the construction team for the replacement bridge, providing earthwork and soil retention services.”

The next steps Bolander’s diversified service portfolio makes Ryan optimistic about Bolander’s long-term future though, like almost everyone in the construction industry, he is concerned about the short-term prospects for the US. The soft real estate market has caused both public and private sector owners in the Midwest to become very cautious about moving forward with their major projects.

“We can help by trying to hold down our prices, but that hasn’t been easy with the volatile cost of fuel, which makes it difficult to prepare competitive bids well in advance of a project’s start date,” says Ryan. The frantic demand for copper and other metals has also forced Bolander and other contractors to place new emphasis on site security and procedures.

Citing a recent grocery store demolition project, Ryan recalled how the standard practice used to be simply setting salvaged copper aside for later. “This time, we had to immediately load and haul it to the recycling yard, or else risk having it stolen,” says Ryan.

Still, Bolander has the advantage of 250 talented and experienced employees continuing an 85-year tradition begun by Carl and Ivar to ensure that employees had a safe, positive working environment, and always recognizing them on a first-name basis.

“We’ve done our best to cross-train people so that they can move confidently from one type of job to another,” says Ryan.

“Low turnover is good for us, our clients, and our industry.”

www.bolander.com

Another picture from the I-35W bridge project.

Demolition of the Grand Hotel in Bloomington, Minnesota, USA.

Issue 3 - 2008 • Aug - Sept •

PDi 15

special survey

Australi Zealand

Australia and New Zealand a great continent with over 25 million inhabitants. The following pages features a special survey over the demolition, recycling, concrete sawing and drilling as well as floor preparation industries in the area. PDi’s Asia Pacific Editor Silvana Wirepa reports.

16

When a person thinks of Australia, the land ‘Down Under’, they may think of a sunburnt land with wide-open spaces, red dust, native Aborigines, kangaroos, Uluru (Ayres Rock) and Sydney Harbour, the Great Barrier Reef, prawns on the barbie and perhaps the late Steve Irwin wrestling crocodiles. Whatever your notions Australia is a country of impressive proportions.

New Zealand, ‘the land of the long white cloud’ conversely is similar in proportion with Japan. It is a pretty country well remembered for its most beautiful Bay of Islands, the magnificent Milford Sound and its strong cultural links with indigenous Maori. Some of the world’s most cutting-edge adventures originate from New Zealand, such as Bungee jumping or Jet boating. Whatever your sporting preference, both countries enjoy their more traditional activities, such as sailing, cricket, golf or more particularly rugby, pursuing the latter with an unwavering passion and a jostling camaraderie.

One of the most urbanised In land area Australia is the sixth largest nation in the world and one of the driest continents. The majority of the population is concentrated along the eastern

PDi • Issue 3 - 2008 • Aug - Sept

seaboard and south-eastern corner of the country. Both Australia and New Zealand have independent Western democracies with Australia having a population of more than 20 million and New Zealand around 3.5 million. Australia is one of the world’s most urbanised countries with European settlement dating from 1788 with six states and two territories that are largely self-governing.

Australia’s culturally diverse cosmopolitan society includes not only its Aboriginal peoples, but also settlers from countries all around the world. Since 1945, over six million people from 200 countries have come to Australia. Migrants have made a major contribution to shaping modern Australia.

People born overseas make up almost 25% of the total population.

The Australian workforce has seen many improvements over the past decade, leading to a surge in productivity in the 1990s. Its complex and centralised award-based industrial relations system was revised under the Howard government with the implementation of workplace agreements whereby many employees, particularly those in the construction and demolition industry, have had to

ia & New d Survey

©Anthony Ngo/Dreamstime

tailor their workplace conditions to meet enterprise needs. Since those changes, the new Rudd government is incorporating amendments to the system motivated by a strong public need for change due to a growing dissatisfaction with the agreements. It is yet to be seen how significant those changes will be.

Demolition and Asbestos Australia The demolition industry within Australia is controlled throughout the country by the relevant State Authorities. Generally demolition falls into two categories. ‘Unrestricted’ applies to all buildings above 15m and ‘Restricted’ applies to structures between 5m and 15m in height. Western Australia is an exception from the other State Authorities whereby a builder’s license is a prerequisite.

There is no differentiation between industrial, commercial and residential demolition in terms of licensing. Only the height restriction applies and an application for an unrestricted licence requires that the individual, already with a restricted licence, demonstrates experience under a licensed contractor for at least two years, ideally on a variety of projects usually exceeding 15m in height.

In New South Wales the restricted category makes up the bulk of demolition contracts of one and two-storey houses. The most active state is NSW particularly with its post-war

Fibrous Asbestos clad and brick veneer houses. The growing level of consciousness in regard to asbestos within these older buildings has brought about a tightening in the controls and licensing requirements.

Asbestos licences apply to the two basic classes of ‘friable’ and ‘bonded’ with the exception of Victoria, which has an additional specific class.

Friable licences are given less frequently, but in Victoria the Water boards Class B licences clearly identifies the removal of a specific type of non-friable asbestos material. For example it may state that only asbestos cement water pipes or asbestos cement telecommunication pits be removed by the licensee.

WorkCover NSW, the regulatory body for promoting and ensuring workplace safety, provided 58 licences for both Demolition Unrestricted and Fr i a b l e

Australia’s red soil, the well-known “road train” trucks with the typical front frame which is a deadly threat for Kangaroos

Issue 3 - 2008 • Aug - Sept •

PDi 17

special survey Asbestos removal since 1 August 2006.

From that time there has been a huge increase in both Bonded Asbestos licences escalating from 43 pre-2006 to 271 licence holders currently and Demolition Restricted licences also increased to 231.

Since the relatively new Code of Practice (2005) there has been a reduction in the threshold for bonded asbestos removal work whereby if the designated area exceeds 10m2 a license is now required. Prior to the increase the area had been a nominated 200m2.

Demolition contractors now have to indicate the asbestos content within their applications if they wish to conduct bonded asbestos removal on individual jobs, whereas prior to May 2008 demolition licence holders were able to perform bonded asbestos work without having to formally notify if the area did not exceed the limits. Since May 2008 any demolisher without a licence, prior to 2008, has to apply for a separate asbestos licence.

In regards to demolition by the use of explosives very few unrestricted licence holders have the capability to perform this work. This means few permits are given each year and according to NSW WorkCover State Co-ordinator Rosalie Mayo-Ramsey, only one person known to WorkCover is capable of conducting submarine demolition.

Change in regulations for implosions The death of a child spectator at the demolition of the Royal Canberra Hospital on 13 July 1997 was an accident that had a profound impact, not just on the local community, but Australia wide. The supposed implosion went tragically wrong when steel projectiles were expelled across the lake some 430m. An estimated 30,000 people were gathered around the shores of Lake Burley Griffin to witness the event. The tragedy was instrumental in changing the way government departments now view demolition by the use of explosives in Australia. It also raised a number of questions. If the contractor employed to do the work is found to have a lack of technical expertise, then how can governing authorities expect to know the difference between a competent demolisher and methods that could potentially cause harm.

It was revealed that the selection of contractors on the basis of lowest price, compounded by time pressures, has been a major problem for government contracts particularly in this case. It has

Explosion of a chimney at the Pasminco smelter at Boolaroo, Newcastle, Australia.

18

PDi • Issue 3 - 2008 • Aug - Sept

also been recognised that access to technical expertise is becoming more critical with independent crosschecking required separate to any contractor, sub-contractor, project director or manager. The relevant authorities have recognised that demolition should never become a media promotion or public spectacle generated and or supported by government.

According to Tim Sherman, who was commissioned by the ACT government in December 1999 to assess the ACT Government response to the Coroner’s Report, WorkCover now has good procedures in place for monitoring the use of explosives.

Blasting Plans have to be submitted and those plans vetted by an independent expert. Post-blast reports are also required.

The Demolition of BHP in Newcastle, NSW was once described by a journalist ‘as one of the largest industrial demolition contracts undertaken in the southern hemisphere’. The demolition of the entire BHP Newcastle steelworks main site was undertaken

by Moltoni Adams Pty Ltd, now the CMA Corporation, and took almost two years to complete. 110,000t of steel were recycled from this site. The Moltoni contingent, based in West Australia, was the first to implode multi-story buildings in Perth, Australia and registered the non-explosive ‘collapsion’ method in Australia.

CMA also demolished the Pasminco smelter at Boolaroo, Newcastle that took a further two years. It included demolition to ground slab level of the entire Cockle Creek Lead and Zinc Smelter including a blast furnace, sinter, acid and dross briquetting plant, emissions control equipment and engineering workshops and removal of all asbestos products. Because of its significant height, the felling of the prepared smoke stack was executed using explosives with strategically placed shipping containers to the rear of the structure to prevent the spray of any debris towards the public road. Paul Adams boasts the ability to fell a structure within inches of its intended fall.

From their demolition origins 30 years ago CMA was born in 2005 out of a merger between the two smaller players T&T Group and Moltoni Adams Pty Ltd. During that same year the newly merged group listed on the stock exchange as Australia’s third largest metals recycling group. CMA’s metal processing operations are vertically integrated, meaning that the company is involved in sourcing, processing and selling scrap metal.

“The old adage that ‘one-man’s junk is another man’s treasure’ is well suited to this company especially in this environment of strong metal prices,” says analyst reporter Tim Morris. “Around 75% of Australian scrap is exported to Asia and CMA

The BOS building had the size of four rugby fields. Pictures above shows when it was imploded.

already trades heavily with China and Indonesia accelerating its push into the region by establishing operations in Singapore after purchasing Peakmore Enterprise, a processor and trader of secondary metals products.”

Issue 3 - 2008 • Aug - Sept •

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special survey

The small pictures on this spread comes from various demolition sites in Australia and New Zealand. The background picture comes from the beatiful nature of New Zealand.

20

The Peakmore deal was one of four new businesses that CMA successfully acquired and integrated since mid-2007 including Southern Recycling and Transpacific Industries. In a climate where the environmental consciousness is growing stronger by the day, CMA’s metal processing operations boast green credentials as every kilogram of scrap used saves 1.8kg of other raw materials. CMA believes Australia hosts over 100,000 sites in need of decontamination and restoration. However, the long lead times involved in tendering for such contracts means that these revenue streams are spasmodic, which explains the focus on recycling.

CMA Recycling Division boasts facilities throughout Australia and New Zealand, in Singapore, Malaysia, Papua New Guinea and the US to serve the burgeoning global metal recycling market.

CMA Contracting services industries, such as the resource sector, chemical, development and general industry to plant decommissioning, industrial demolition and site clearance as well as remediation, decontamination and redevelopment of sites. The division operates a large fleet of equipment, such as customised

PDi • Issue 3 - 2008 • Aug - Sept

160t excavators, cranes, marine barges and tugboats for both land-and water based projects particularly projects in ports, waterways and structures close to shorelines.

Albert Sims, who was a metal dealer in Sydney, founded Sims Group Limited in 1917. The company’s original name was Albert G Sims Limited and in 1991 Sims Group was listed on the Australian Stock Exchange. Its average annual revenue reaches approximately $5 billion. It is located in New South Wales, Australia and employs around 100 people. In 2004 they purchased the Bay Bridge Enterprises’ businesses and assets and acquired Australia’s biggest tyre recycler Devote.

They also acquired Europe’s leading electrical and electronic equipment recycler the Mirec Group of Companies and in 2005 merged with Hugo Neu, making it the biggest recycled metal exporters in the US. Its two primary areas Sims Recycling Solutions and Metal Recycling are further divided into 11 business segments.

These are energy, aluminium, international, industrial, metal, manufacturing, plastics, mirec, steel, recycling solutions and tyre cycle. The aluminium segment is now the largest producer of specification grade aluminium in and for Australia as well as South East Asia’s automotive industry.

Smorgan Steel Group Limited is one of Australia’s largest producers of steel products with 5,849 employees and a turnover of $3.2 billion in 2006 and was listed on the Australian Stock Exchange on 3 February 1999. Its Smorgan Steel Recycling division operates 39 collection branches in all states and supplies over 1Mt of ferrous and non-ferrous scrap to the domestic and export market. In recent years, this division has undertaken a series of acquisitions, highlighted by the purchases of Metal Salvage Industries in January 2002, and the scrap metal trading divisions of Nonferral Pty Ltd in May 2002. In 2006 Smorgan Steel acquired the operating assets of ITI of the US to expand its metal recycling capacity in the US. Another demolition company in Australia is Delta Group. It began trading as Delta Demolition in 1974, and has since established itself as an industry leader specialising in small, large and delicate demolition projects.

The company has expanded to incorporate civil works, excavation, civil and landscaping, asbestos removal, commercial bin and heavy equipment hire, as well as an innovative recycling and waste management programme, including a world-leading joint venture with Boral in concrete recycling.

Delta Group’s ability to offer complete packages enables this company to be marketable to construction companies, government departments, municipal councils, developers, and other business partners, offering transition from demolition through to civil works and commercial landscaping.

The Delta Group is currently demolishing the Montague Street Entry Ramp in Melbourne as part of the state governments Monash - CityLink - West Gate upgrade. This upgrade seeks to improve safety, reliability and increased traffic flow through the state’s busiest traffic corridor. The approach structure is a simply supported prestressed ‘I’ beam and cast in-situ slab type structure, extending over a length of approximately 55m. The remaining

ramp consists of post-tensioned segmental box girder structure over a length of approximately 160m. The works will be completed over two stages, with the first stage beginning at the end of May 2008 and the second stage finishing mid February 2009.

All demolition and asbestos licences require a course in training with a local Technical Institute (TAFE). Having been a teacher/trainer as well as being a Quantity Surveyor on the demolition of BHP, Newcastle, it is my opinion that the current demolition course is desperately out-of-date and needs to be re-written to relate more to the actual demolition environment. The industry could also do with another approved competitor, as TAFE is the only institution providing a certified training course.

The courses vary in cost and duration from a 3-hour Bonded Asbestos course to 7-10 day Supervisor’s Restricted Demolition training that costs around AU$1500 per person. To get licensed in NSW, a Bonded Asbestos licence from the relevant authority is generally $100 and Friable Asbestos, Restricted and Unrestricted Demolition licences are $2000 each respectively.

Licences for demolition work in South Australia must be obtained from the Office of Consumer and Business Affairs (OCBA), but if the building contains asbestos, licences are obtained from SafeWork South Australia, which is the regulatory Agency responsible for OHS. Unlike NSW, these organisations are separate entities. SafeWork SA currently has six full Asbestos licences operating in the workplace and 20 Limited Asbestos licences allocated each year for asbestos removal work. Licences are required to be renewed every two years.

Asbestos was a material sold extensively by Hardie’s and used widely in Australia both for commercial and residential use from the late 20th century for almost a decade and well into the 1980s mostly as lagging around pipes, external cladding, fencing, roofing, within bathroom and kitchen linings and floors. It was a material that was used in an extensive variety of products. “Because it was so widely used in many different applications you can’t pinpoint a particular area where it is more prevalent and because of the increasing level of consciousness we have found a significant increase in asbestos notification,” says WA WorkSafe Officer Mark Koppen. This statement is echoed across Australia.

Waste and Recycling Australia The Australian Council of Recyclers (ACOR) is Australia’s peak industry association representing companies involved in resource recovery. The organisation was established in 1983 to encourage recycling and to promote the recycling achievements of the industry to the wider community. ACOR states that through their members they currently reprocess more than 12,900,000t or 86% of recyclable material in Australia annually and directly employs 10,900 people in the industry.

In 1992, ACOR began its focus on being the primary resource to government and industry on industrial recycling spanning the three major streams of solid waste of commercial and industrial, construction and demolition as well as the domestic waste stream.

This includes aluminium, cardboard, computers, construction and demolition material, electronics, ferrous and non-ferrous material, glass, paper and newsprint, plastics, mercury, tyres and white goods. ACOR’s mission is to encourage governments, industry and the public to take actions that advance the optimal use of Australia’s secondary materials and to facilitate the removal of barriers that hinder effective recycling and reprocessing.

In 2006 the Australian recycling industry had a turnover of

$11.5 billion, contributing 1.2% of Australia’s GDP, and a capital investment of over $6 billion. This investment and employment has a number of direct and indirect benefits conservatively estimated at $55 billion.

According to the Sydney City Council, the construction industry is contributing approximately 40% of all waste going to landfill which is becoming an increasing concern for them as the availability of suitable landfill areas are diminishing. In a push to reduce construction waste going to landfill, Commonwealth Government’s Waste Wise Construction Programme was introduced in 1995 - 2001, which was a voluntary partnership with private industry. It demonstrated that waste reduction targets of 50% could actually be surpassed. This prompted the NSW Government to declare a 76% diversion rate target to be achieved industry-wide by 2014.

State-imposed waste levies were first introduced in 1993 in order to encourage recycling. It is a state tax collected by local government. According to NSW’s Director of Corporate and Financial Services, the NSW Waste levy raises $107 million for Treasury each year. But the levies have increased the cost of disposal of waste in NSW, particularly in Newcastle, from $13.50 to $40.00/t currently since they were first introduced. It seems the levy is the State Government’s incentive to raise more money into the consolidated revenue rather than into the Waste Fund.

“The levy may no longer be encouraging recycling as it is planned to do” and the comments from Waste Managers is “the increases to the levy has had no effect on the reduction of waste,” says Australian Council of Recyclers chief executive Anne Prince.

Newcastle’s Summerhill Waste Management Centre is an example of the costs associated with a Class 1 tipping facility. The tipping fees and charges include GST and the State Government Levy. Waste management plans are required when a Development Application is lodged with local government.

Demolition and Recycling New Zealand According to the Department for Building and Housing New Zealand, demolition licensing is not a compulsory requirement and unlike Australia there is no specific professional qualification expected of the demolisher. The demolition of a building is simply made by an application within a Building Consent administered by one of the 73 local governments. The primary contractor will choose a company they think has a competent level of demolition capability.

Household and business recycling depots are very progressive in terms of the quantities of materials being reused. Unlike Australia waste centres New Zealand have not added any government levies to their charges.

Waste from the construction and demolition industry represent as much as half of all the waste generated in the country.

It has been estimated that 20% of all waste is going to landfill and 80% of all waste is moved to clean-fills. The New Zealand Waste Strategy has set a target of a 50% reduction in construction and demolition waste being sent to landfills by the end of 2008. The Ministry of Environment is seeking a strategy to shift investment from simply managing waste disposal to more efficient use of materials and resource recovery.

Issue 3 - 2008 • Aug - Sept •

PDi 21

special survey

Concrete Cutting since the 1950s Australia and New

Zealand has a long tradition in concrete sawing and drilling.

According to the international umbrella association IACDS has the third biggest national association in this field and is among the five biggest nations in the world in terms of concrete cutting.

The article on the previous pages has been dedicated to the demolition and recycling industries in Australia and New Zealand.

But what about the concrete sawing and drilling and concrete floor grinding industries?

Concrete cutting since the 1950s PDi has been talking to several key persons in the region in order to make a clear picture of the concrete sawing and drilling and concrete floor grinding industries in Australia and New Zealand. One of them who knows this industry like the back of his hand is Lloyd Williams and He has been helpful to gather information for this.

The use of concrete sawing and drilling equipment dates back to the late 1950s. As Lloyd Williams can remember a Clipper saw was imported in 1957 to Australia to saw joints for underfloor heating, by a Melbourne based company, Smith and Osborne. Clipper should therefore be regarded as a very early player on Australian soil as well as Diamond Boart through the Belgian Jules Joris who operated in Australia but had very strong affiliations to Diamant Boart.

Strong growth in Australia Since the end of the 1950s the Australian concrete sawing and drilling industry has been growing steadily and Australia has today 790 contractors that is advertising themselves to carry out this type of work as the primary part of their business. There are similarly 145 in New Zealand.

The average turn over for a professional concrete cutter in Australia and New Zealand is estimated to be about US$1 M. About 10% of that revenue spent on diamond tools and approximately 7% on associated equipment.

As for most countries concrete sawing and drilling activities are strong in direct proportion to population location with few exceptions. In Australia the New South Wales area stands for about 35% of the concrete cutting activities, 27% in Victoria, 24% in Queensland, 10% in Western Australia, 7% in South Australia and the balance in Tasmania, Northern Territory and Australian Capital Territory.

The concrete sawing and drilling sector in both Australia and New Zealand has reported being very strong during the last years and is currently growing with some 4% per year. The growth is mostly coming from a strong economy and diversification in to new fields such as wall sawing, wire sawing, light demolition and surface preparation.

“The industry has certainly become far more professional in its operations since the inception of the associations, primarily as a result of companies ability to benchmark, share ideas and to remove the “fear of the unknown” by being able to discuss collective problems and solutions in an open forum”, says Lloyd Williams.

Remoteness gives innovativeness

22

Several persons in this industry that PDi has spoken to believes that the strong development of this industry comes from the attitude of the Australian’s and New Zealanders. And very much has to do with the remoteness in this part of the world. Its people had to be innovative and develop techniques such as hand held,

PDi • Issue 3 - 2008 • Aug - Sept

wet cut wall sawing to a level unseen in other countries. Such techniques have made sawing and drilling significantly more affordable and hence opened the market to a much broader customer base.

“This is reflected in association membership and turnover per business units being much higher proportionately than most countries. It has also brought about stiff competition and hence the desires to constantly improve ones own business and the industry itself”, says Williams.

Both the Australian and New Zealand markets are extremely receptive to new ideas. The market is expected to continue to grow in Australia on the back of a strong economy, high housing demand, an extremely strong mining industry and high infrastructure expenditure. Regrettably the New Zealand economy is down somewhat, albeit, believed to be temporary.

But this region of the world, and in particular Australia, also has a very strong impact on the neighbouring countries.

Many major Australian Building Contractors are winning major contracts throughout Asia Pacific and most of the times they are bringing local sawing, drilling and grinding techniques with them into the new region. Local industry experts are in strong demand to support and train locals throughout Asia Pacific and also in China.

Strong branch associations The professional branch associations in Australia and New Zealand are playing an important role in the industry and are a great support to their members. In Australia the concrete sawing and drilling association has 220 members according to the IACDS statistics making them the third biggest association in this field after Germany and USA. The New Zealand association has 36 members.

In 1993 the Industrial Diamond Association of Australia was founded, a forerunner of the current CSDAA. The association was formed by Lloyd Williams of Dembicon Australia as a medium for interaction between manufacturers, suppliers and contractors. As membership grew, contractors of course far outweighed the manufacturers and the name was changed in 2003 to CCIA (Concrete Cutting Industry Association) and then in 2008 to CSDAA. The collective associations have had 3 Presidents, Lloyd Williams from foundation until 1998, Des Vaughan until 2000 and Greg Mahoney since then. The CSDAA is a very well organised organisation with a clear profile aiming to support the professional contractors in this field and teach the customer why to choose a professional contractor. The association is also publish their own magazine regularly. CSDAA also has a very nice website that can be found at www.csdaa.com.au.

Growing side businesses In particularly Europe concrete cutting techniques are also considered an efficient method for demolition purposes and the same thing appears in Australia and New Zealand. Many demolition contractors either take up concrete cutting themselves as an additional service or Co-operate with sole concrete cutters. And this trend is clearly increasing and seems to be coming from the smaller demolition companies but some major companies have invested in equipment and experienced people lately. It is expected that

,1129$7,9( ',$021' 352'8&76

::: %,$1&2',$021'722/6 &20 $8 this trend will continue where job size in particular determines. It should also be said that Australian and New Zealand professional sawing and drilling contractors are also extending their operations into the traditional demolition industry.

Another side business to the concrete sawing and drilling that has increased dramatically during the last year’s is concrete floor grinding and polishing. Counting the whole surface preparation business in Australia some 400 plus companies are currently contracting to various degrees. Some estimates suggest the industry overall is worth approximately US$300-400 M a year from a contracting revenue perspective. Serious floor polishing such as the Husqvarna brand named Hiperfloor is growing hugely in demand. Several companies offer their own versions of such floor treatment like for instance HTC’s Superfloor. The major suppliers today are Husqvarna and HTC via Tyrolit in Australia and Holer and Youngman Richardson in New Zealand.

The suppliers, local and foreign Australia, with a population of around 21 million and New Zealand

::: $'$0$6 1/

with almost 4.3 million, has an extensive market for demolition, recycling, concrete sawing and drilling as well as concrete floor grinding and polishing equipment, including all other equipment connected to these industries.

Australia and New Zealand have a long tradition of using equipment for demolition, recycling, concrete cutting and floor preparation, but they do not have a big manufacturing industry in these product areas. Most brands that are sold and used are imported and most of the big foreign brands can be found in use in Australia and New Zealand.

An Australian manufacture that has gained international status is Kanga Loaders. The company is a division of the Jaden Kanga Group, and a manufacturer and supplier of earthmoving equipment to Australian and international markets and was the very first to commercially produce the stand-on compact skid steer loader. The Kanga Loader is designed and manufactured at Burleigh Heads on Queensland’s Gold Coast, and is distributed to Australian branches, dealers and agents as well as to USA, UK, South Africa and New Zealand markets.

An automatic multi whole core drilling machine from Holer Diamond Tools in New Zealand.

Issue 3 - 2008 • Aug - Sept •

PDi 23

special survey The first Kanga Loader was built in 1980 by The Jaden Kanga Group, an Australian owned marine engineering, heavy hydraulics, earthmoving and mining equipment manufacturer, founded in 1978. The Kanga Loader was originally designed as a motorised wheelbarrow and has developed into an earthmoving tool that has changed the face of the workplace for many industries. Another manufacturer that has proved itself on the international arena is former King Concepts, which developed and manufactured floor grinding and polishing machines particularly for concrete floors. The company was acquired by Husqvarna Construction Products a couple of years ago and its products have a strong and growing position in the Asia Pacific region, as well as other parts of the world.

There are several small manufacturers of diamond tools that provide the local market with all sorts of professional diamond tools as well as special machinery for different concrete sawing and drilling tasks. Some of them produce their own diamond

tools or sell different brands or both.

The biggest local diamond tool producer in this area is believed to be Holer Diamond Tools in New Zealand that also represents a number of foreign brands of machinery. Other well-known suppliers are Kennards Concrete Care in Australia, Australia’s Industrial Abrasives, Churchill Diamond Products, Delta Diamond Tools, Bianco Diamond Tools, MK Australia and Hoskin Diamond Products. There are several more local companies operating in the market, but the foreign brands have a strong impact. Several of the foreign companies have their own subsidiaries in the region. One very strong player is Husqvarna Construction Equipment who has been represented in Australia since almost three decades first through distributors and now since many years with their own office and production plant. Other manufacturers with a rather long history in Australia and New Zealand are Tyrolit, Hilti, Saint Gobain and others. Below a list of the foreign brands represented in Australia and New Zealand.

Demolition Attachments: Breakers, Crushers, Pulverisers, Sorting Grabs, Steel Shears Brand

Own Subsidiary AU

Own Subsidiary NZ

Dealer AU

Dealer NZ

Internet page

Atlas Copco Sandvik Indeco Furukawa/FRD Socomec Arden Equipment Darda Equipment Trevi Benne Mantovanibenne VTN Europe PM Promove Idromeccanica Cat Work Tools

Yes Yes Yes - - - -

Yes Yes Via AU - - - -

- - Bruce MacWilliams Conquip/Hitachi Contatore Engineering ECH Bianco Diamond Tools/Kiwi Down Und.

- - - Hitachi/Eagle Spares Contatore Engineering ECH -

atlascopco.com sandvik.com indeco.com.au furukawarockdrill.co.jp contatoreengineering.com.au echpl.com.au biancodiamondtools.com.au/kiwidownunder.com.au

Yes

Yes

Yes

Yes

catworktools.com

Yes Yes Yes Yes Yes Yes

Yes Yes Yes Yes Yes Yes

Yes Yes Yes Yes Yes Yes

volvo.com.au/volvo.co.nz cat.com.au/cat.co.nz jcb.com hitachi-c-m.com case.com komatsu.com

Yes Yes Yes Yes Yes

Yes Yes Yes Yes Yes

Yes Yes Yes Yes -

Yes Yes Yes Yes -

bobcat.com.au cat.com.au case.com jcb.com kanga-loader.com

- - Yes

- - Via AU

Kiwi Operations Down Under Sandvik NZ -

Via AU Sandvik NZ -

kiwidownunder.com.au sandvik.com husqvarnacp.com

Yes Yes Yes Yes -

- - Yes Yes Global Crushers & Spares

- - Yes Yes Via AU

sandvik.com metsminerals.com.au/metsominerals.co.nz extec.eu Fintec.com globalcrushers.com

Bianco Diamond Tools Bianco Diamond Tools - - -

Via AU Via AU Youngman Richardson Holer Diamond Tools -

biancodiamondtools.com.au biancodiamondtools.com.au husqvarnacp.com/yrco.co.nz holer.co.nz www.hilti.com

Delta Diamond Tools AUSTRALIAN INDUSTRIAL ABRASIVES Hoskin Diamond/DTA -

Via AU Holer Diamond Tools Holer Diamond Tools -

deltadiamondtools.com/ holer.co.nz dta-aus.com.au/hoskindiamond.com.au/holer.co.nz goelz.com.au

Carriers of Demolition Equipment Volvo Caterpillar JCB Hitachi Case Komatsu

Yes Yes Yes Yes Yes Yes

Compact Loading Equipment Bobcat Cat Case JCB Kanga Loaders

Demolition Robots BROKK Finmac Husqvarna

Recycling, Crushing and Screening Sandvik Metso Minerals Extec Fintec Rubble Master

Yes Yes Yes Yes -

Diamond Tools and Concrete Cutting Equipment Adamas Tractive Husqvarna Tyrolit Hilti Cedima EDT Eurodima ICS Blount Eibenstock Gölz

- - Yes Yes Yes - - - - Yes

- - Via AU Via AU Yes - - - Via AU

Concrete Floor Grinding and Polishing Equipment Husqvarna form.King Concepts HTC Sweden Blastrac Scanmaskin

Yes - Yes

Via AU - Via AU

- Tyrolit Australia Flextool

Holer Diamond Tools Blastquip

flextool.com.au/

-

-

Hammelmann

Via AU

hammelmann.com

-

Via NZ

Holer Diamond Tools

holer.co.nz

Hydrodemolition Conjet

Dust Extraction, Air Cleaners and Wet Vacs Pullman Ermator

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PDi • Issue 3 - 2008 • Aug - Sept

special survey

Cutting

Historic Church Restoration in Queensland St Paul’s Presbyterian Church, a Gothicstyle stone building dominating the skyline at Spring Hill, Brisbane Australia, was built between 1887 and 1889 and is significant historically as it is one of few churches in Queensland to fully realise the gothic style in stone complete with buttresses, bell tower and a 45m spire.

Steel frame for the spire A major factor identified in a Conservation Management Plan prepared in 1994 for the Heritage listed church was the condition of the spire’s softer and less robust sandstone stonework and a recommendation was made for its restoration. PDT Architects, engaged during 1996 by the Restoration Trust to investigate options for the restoration of the spire, recommended over cladding of the spire as costs could be controlled and it was preferred by the Queensland Heritage Council as it involved retaining and protecting the existing structure.

PDT Architects designed a steel frame that would both support the new copper cladding as well as support the existing stone spire to meet all relevant codes, including the Earthquake Code. It was resolved that construction of the frame and most of the copper cladding could occur on the ground in the church’s forecourt and then the near completed work could be lifted into place and dropped over the existing stone spire and secured into place. The base that supports the entire frame is connected to the stone at the top of the tower and pinned to it with 20mm diameter stainless steel rods embedded 5m deep into the stonewalls through 60mm diameter holes.

Condrill Services The drilling of the 60mm diameter holes into

26

the existing stonewalls of the tower was an achievement on its own. The four holes had to be drilled into the existing stone to a depth of 5m and kept perfectly vertical.

The drilling had to be vibration free, so as not to disturb the existing stone and be done from a height of 25m off the ground from a boom lift.

Condrill Services of Helensvale Queensland took on the task utilising core drilling methods. The equipment was supplied by Berry Wiresawing of Melbourne and included a twin pole drill rig with 2m columns and additional bracing, continuous casing in 1.5m lengths, drill bits with reamers, stabilisers and a core lifting system, single and three phase drill motors and an auto feed system.

Working from a large boom lift Condrill Services operators first secured the drill base plate to the stone tower with stainless steel rods embedded in epoxy filled holes. The drill rig was then assembled and positioned over the hole collar and secured with additional bracing. Target tolerance for verticality was 1mm/m. The holes were collared with a special short drill tool before 1.5m long continuous casing was used to progress the holes. Hole locations were at intersecting corners of the stone blocks resulting in water loss, broken cores and washout into the holes of the old lime mortar used in the original construction.

Works progressed with minimal water flushing and frequent clearing of cores as drilling mud, foam or additives were not allowed. Because of the increased risk of jamming Condrill Services operators decided to use the lower powered single phase drill motor without auto feed relying on manual feeding. This meant that one operator worked from on top of the tower wall. Despite the limited access and flushing problems the holes were drilled

PDi • Issue 3 - 2008 • Aug - Sept

and cleared to depth and tolerance at the rate of one per day.

20 m new spire On completion of the core drilling the two parts of the spire were lifted into place. The total height of the new spire is 19.95m plus a 1m lightning rod. When lifted into place, the base section weighed 7.9t and the taller but thinner upper section weighed 4.2t.

After completion of the lifting phase, the works redirected its focus onto the four new stonework pinnacles. Each is constructed from 18 individual parts with each stone cored drilled centrally and placed over a galvanised steel pin. The copper roof is only slightly wider than the original stone spire it encloses and is in complete proportion with the existing stone tower that supports it. The natural patina process, typical of copper, will, after about ten years, change to the light green colour. St Paul’s Presbyterian church remains the highest spire in Queensland at 45m and is one of the ten highest in the country.

Holer Diamond Tools, a family owned company, has established itself as New Zealand’s largest and leading supplier to the concrete cutting, drilling, grinding and stone processing industries.

Holer Diamond Tools started trading in 1992 and has established itself as New Zealand’s largest and leading supplier to the concrete cutting, drilling, grinding and stone processing industries. It now has five outlets in New Zealand with a client list of over a thousand companies.

The family owned company has been built from the ground and up with strong personal values that reflect positively in all aspects of their business.

Strong growth Holer is said to have the industry’s largest team of sales representatives in New Zealand who are trained on an ongoing basis in areas such as wall and wire sawing as well as concrete grinding. This allows the Holer’s sales team to build strong partnerships with customers. The company is not only a supplier of machinery and diamond tools, but is particularly hands-on when demonstrating to clients the safest way possible of operating the equipment. They can also design and produce machinery for specific needs.

Tremendous growth has been experienced and demonstrated

by Holer over the past 16 years.

The Holer family has made the company success a high priority and invested their time and expertise ensuring this success.

As a result the company is able to provide solutions to its clients from its knowledge base. “On a regular basis we work with our customers to find the best methodology for specific projects in order to work out the best way to utilise the machinery and diamond tools,” says sales and marketing manager Phil Holer. “Referring to our Autodrill-16, our Australian client was required to drill 200,000 holes as quickly as possible for railway brackets

g Holes the Holer Way sell high quality products in order to build a reputation based on reliability and profitability to the customer.

Every machine that is sold is serviced and repaired inhouse. Most of the brands were introduced by Holer to the local market and Holer has made them the leading brand in their field.

Own development and production

all to the same hole pattern. Our research and development and production manager Simon Holer designed a machine platform that allowed 16 holes to be drilled simultaneously in a time of 1 minute 40 seconds that could be operated remotely.”

Small and price competitive market In order to keep at the forefront of the market the company has recently invested in automatic welding machines from Dr Fritsch for its service centre and SAP software for its administration. “The New Zealand economy is small and our investments may be viewed as generous, however we feel in the long run it is the only option as customers continuously demand fast and efficient service,” says Phil Holer. “We need to be able to react and decide quickly. This has always been our strength and most of the 100,000 items sold annually are dispatched to customers overnight.

New Zealand is also progressing towards making concrete cutting a recognised profession which will also take the industry up another level.”

According to Holer the local market for diamond tools and machinery is relatively small and very price competitive.

The company believes that the annual average company consumption rate for diamond tools is approximately NZ$30,000. Most international brands are represented in New Zealand and there has been a large influx of products into the market from various Korean and Chinese diamond suppliers. “Asian imports generally only compete on price and not service. While doing so may be successful in the short term, it does not build strong brand recognition or provide real support,” says Phil Holer.

Over the years Holer has attracted many overseas suppliers such as, Tyrolit Hydrostress, Weka, ICS, HTC, Core Cut, and Hycon, to be their exclusive agent of machinery. Holer’s philosophy is to only stock and

By having a state of the art service centre and its own research and development team, Holer is able to custom design tools and machinery.

It is these special requests for unusual or oneoff jobs that place Holer into a category of their own and testimony to the fact that more and more customers are putting their trust in Holer to deliver. Holer has designed and built many unique tools. The recently completed automatic drilling rig Big Foot can handle core drill diameters of up to 1000mm.

Their service centre has the capability to manufacture core drills up to 3000mm in length. The largest blade was 3m in diameter.

When designing custom machines, the R&D team endeavour to utilise components from existing suppliers combining them with in-house designed attachments and brackets. The benefit to customers is that the components can be utilised again. Holer’s success is attributed to never sacrificing quality and this is the advice they give. Phil Holer says that investing in new quality equipment brings its own rewards on large projects when the operators are fully trained and when the client works closely with their diamond tool supplier.

A good supplier should be able to support the concrete cutter with know how, service and the ability to custom design tools. Price should never be a deciding factor. It is important that the company delivers products and services to customers that allow them to maximise their profits.

proposal was to wire saw the statue into sections using a Tyrolit Hydrostress SB wire saw powered by a PPH20RR power pack. Dooleys Masonry anticipated that the stonework could be salvaged at ground level.

The first leg of the job was to remove Trooper Jack from the top of the structure. This was achieved by cutting the grout lines with a pre-cut blade and then ICS bar saw using wedges to insert a lifting frame or strops. At that point it was discovered that the core of the statue was in poor condition and an alternative cutting method was applied. It would not have supported the weight of the stonework.

The decision was made to use the Tyrolit HBH534*** hydraulic handsaw with a Holer pre-cut blade and then an ICS-853 hydraulic bar saw to cut into the grout lines. They could, if necessary, cut down behind the stonework to free it from the no fines fill. The process worked well and the individual panels of stone were removed by crane using lifting brackets chemically set into predrilled core holes.

As the stonework was removed, the no fines fill behind was demolished using a jackhammer. A Lion and four Lampposts around the base of the statue were also removed using the same method. “The contract was completed ahead of schedule and within the budgeted time frame required and it was an excellent example of how the diamond tool supplier and concrete cutter can both work together to deliver a positive result,” says Allcutt director Greg Buchanan.

www.holer.co.nz

Pictures above and under to the right is showing the work on the Trooper Jack project.

Trooper Jack Dooleys Masonry contracted Allcutt Concrete Cutters Ltd to provide their concrete cutting services to remove a Boer War Memorial “Trooper Jack” in Oamaru, New Zealand so that it could be re-erected 40m away from an intersection. Trooper Jack was a local resident who served in the Boer War. The reason for the relocation was to allow better flow of traffic on their State Highway One and other surrounding local roads. Holer was approached by various construction companies seeking advice on how to perform the task. The initial Issue 3 - 2008 • Aug - Sept •

PDi 27

special survey

Wall and wire sawing Lloyd, one of the concrete cutting icons in Australia in Australian mine Cutting and moving walls that run three stories underground is a complicated project, especially when they weigh between 30 t and 50 t each. But leading Australian engineering group Monadelphous Engineering, found Husqvarna the right partner for the task.

BHP Billiton, one of the world’s leading mining companies, mines iron ore in Newman, Western Australia. The raw material is extracted from opencast mines and transported 650 km by train to the coastal town of Port Hedland. Here, the ore is sized and then transported by ship all over the world. When deliveries to the coast increased, the strain on the rail car dumpers also increased. To increase throughput, BHP Billiton engaged Monadelphous Engineering to upgrade a series of car dumpers to take larger rail cars and increase volume. This involved the removal of much of the sloped wall sections and floor slab. Monadelphous teamed up with Husqvarna for this challenging refurbishment.

“We were contacted by, Monadelphous project coordinator Andrew Draper and asked if we could supply the right equipment for the task of removing the concrete wall sections,” says Husqvarna South Australia State Manager Jason Jamieson.

In ten weeks the old dumpers were to be removed and new ones installed. “We had partnered with Husqvarna in an earlier project and knew that they had the knowledge of products, level of service and back-up that we needed in order to meet the tight time schedule,” says Andrew Draper. “With penalties for any delays, Husqvarna agreed to supply a wall and wire saw onsite, so that in the event of a breakdown no time loss would occur. This proved to be unnecessary as all equipment worked faultlessly, but was a welcome insurance for us.”

Husqvarna’s wall saws and wire saws were used to remove the walls. All equipment met the rigorous safety requirements of BHP Billiton and 300 m of diamond wire was used for the job of cutting the 50 t large blocks.

Husqvarna also provided training of the Monadelphous personnel on all equipment to be used and had a service technician onsite fulltime. “Husqvarna also met our request of increased supply of machinery at the last minute assisting us in gaining four days of programme by increased productivity,” says Draper. “We ended up finishing before deadline. In a booming industry where reputation counts, dependable support really counts.

Husqvarna has proven to be that time and time again.”

www.husqvarnacp.com

Wall saws and wire saws from Husqvarna were used to take down the walls.

In a survey about the concrete sawing and drilling industry in Australia it is necessary to mention in particularly one person, Lloyd Williams. If his knowledge was symbolised as a sizeable diamond cutting blade incorporating aspects, such as concrete construction, saw operation to the manufacture and subsequent design of diamond tools, then Lloyd has carved his niche with this symbol numerous times and made a significant mark on this very specialised industry.

Worked with his grandfather Lloyd started work in 1965 as a teenager in his grandfather’s concrete construction company A. E. Williams & Sons. His grandfather had a significant influence on this young man, teaching him the importance of personalised face-to-face business dealings, relationship building and service based on excellence. A. E. Williams & Sons was one of the very first companies to purchase a road saw in Australia.

It was a 30hp concrete saw made by Diamond and Boart and Lloyd was the operator.

Seeing opportunities in the marketplace it was not long after that Lloyd established A E Williams in 1968. Seven years later he created Concut to be followed by Drillcrete.

In 1988 Lloyd sold these business interests to concentrate on the supply of products tailored to the industry. He arrived at the realisation that it was difficult to wear two hats at the same time and be a contractor and a supplier simultaneously. Seeing the need to supply quality diamond tools and equipment to the Australian market as well as being able to recommend the right diamond tool for the job motivated Lloyd to design and subsequently manufacture diamond tools for specific tasks.

Launched Dembicon

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Lloyd established the Australian brand Dembicon in Adelaide, South Australia. This company was the first Australian owned supplier and manufacturer of diamond tools and equipment. Sales outlets in Melbourne, Sydney, Brisbane and Perth were soon established.

In 1982, Lloyd launched the first Australian laser welding facility for diamond tools in order to complement the diamond tool production facility.

During this time Lloyd was integral to introducing and developing the major brands Partner, Dimas and Diamant Boart to Australia and was vital to the growth of Husqvarna as the leading supplier of diamond tools and associated construction equipment in the Australasian region.

There were no shortages of challenges and one example was simply to teach people in the industry new and improved ways of operating in lieu

PDi • Issue 3 - 2008 • Aug - Sept

of smashing and breaking, which was the normal practice leading up to and during the 1980’s. His credibility had to be established in order to be a contender within the marketplace, a task that Lloyd took on unabashed.

Lloyd’s key to success is to build relationships and provide a quality of service that is second-tonone. He says that to be successful in this industry it is important to provide innovative ways of getting the job done and to continually seek new diamond tool technology and quality equipment to provide to the customer.

Aggressively passionate or passionately aggressive Some in the industry might describe him as aggressive, but when conversing with him in relation to business it is his passion that prevails. Talk with him about his achievements and he is very modest.

Whatever your conviction he is a man who is unique and committed to the industry, whether or not you regard him as aggressively passionate or passionately aggressive.

Lloyd’s experience in the industry and his success can be attributed to three key elements; a passion for the industry, the acquisition of experience and a healthy drive for innovation. But perhaps more importantly Lloyd says that it is about supplying the customer with what they want as a result of listening carefully.

Highlights of Lloyd’s career include among others introducing to the Australian market place major international industry brands including Target, GDM, Milwaukee, Shibuya, Meco, Magnum, Rubi, Riken, Kordia, Dembitzer, Partner, Dimas/Husqvarna, Sankyo and Disco.

He has been President for six years of the Concrete Sawing & Drilling Association of Australia.

Lloyd was the inaugural President of the International Diamond Association Australia, which is now the CSDAA. He has been Vice President, Sales & Marketing Asia Pacific, Husqvarna Construction Products for more than 10 years.

SAIE goes “energetic” SAIE returns to the spotlight with important innovations, including an area totally dedicated to sustainable construction; organized by BolognaFiere for over 40 years SAIE

has been presenting the public with the best in technological innovations and construction culture. It is a meeting point for all operators in the production cycle to discuss and examine projects, technologies, and systems created under the aegis of innovation.

New pavillion SAIEnergia The shining star of BolognaFiere and SAIE INTEGRATED SYSTEMS, SAIE 2008 – entitled “Building the future” – presents itself to the construction sector with an extensive exhibition array including halls specializing in strategic sectors. There is LaterSaie, the hall exclusively dedicated to bricklaying innovation and construction technology, Saie Precast Technologies, focusing specifically on pre-fabrication machinery and technology, SaieBit which continues to host service companies as well as those producing computer systems for construction and design, SaieLegno dedicated to wood construction, structures and components, and finally this year’s new addition, SAIEnergia.

SAIEnergia, the hall for renewable energy and low-consumption technology for sustainable construction, is this year’s novelty. SAIEnergia will be located in the new pavilions 14 and 15, thus bringing the topics of renewable energy and energy efficiency to the forefront of the largest trade fair in the construction industry.

To close the circle of the

“path to efficiency”, there are several conferences on the agenda: at the Palazzo Congressi the opening conference will be the Observatory of construction regulations and energy savings, with the presentation of Cresme-Legambiente’s report, organized by BolognaFiere (Sala Italia, October 15th) and Energy efficiency in existing buildings: from historic town centers to the suburbs, promoted by BolognaFiere and Assorestauro. Also scheduled are the conferences SAIEnergia. Energy in Architecture, (Sala Forum, pavillion 14, October 16th), the observatory The photovoltaic market organized by Assosolare and the training project Energy efficiency in construction. Standards, incentives and technologies organized by Edilio in cooperation with Il Sole 24 Ore (October 15th and 16th).

After its success at SAIE 2007 the exhibition New Materials Space will return this year, furnished

by Material ConneXion and focusing on materials and innovative technologies linked to the topic of energy and sustainable construction. Also returning this year will be Selezione Novità SAIE 2008, which will gather the most significant innovations on display at Saie and compile them in the Guide to SAIE 2008 innovations.

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SAIE numbers The numbers from last year’s edition are an excellent starting point for 2008, which will be counting on the two new pavilions 14 and 15 located in a new, split-level structure, as well as a multi-floor parking structure with 2,500 covered parking spaces: •

•

•

•

260,000 square meters of exhibition surface, of which 180,000 is covered and 80,000 is uncovered 1,750 exhibitors, of which 350 are from outside Italy 178,250 visitors, of which 7,530 are foreign 4 separate visitor entrances (Costituzione, Nord, Michelino and Aldo Moro).

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www.bolognafiere.it Issue 3 - 2008 • Aug - Sept •

PDi 29

special survey

New Rubble Master duo in Australia In December 2007, 15 potential customers at a yard for waste asphalt near Sydney were demonstrated the benefits of mobile recycling with the new RUBBLE MASTER high-performance combination of the RM100 and the TS3600. The asphalt lumps were crushed in the RM100 at a throughput of approximately 200 t/h. The material was transferred directly from the main discharge belt of the crusher to the high-performance double-deck screens by means of a feed hopper that opens hydraulically and has a pre-screening grid. In accordance with customers’ wishes, the material was screened off to 0-20, 20-50 and 50x mm. The Australian clients were very satisfied by the quality of the cubic grain in the required grades. The two crushers with crawler gear work at the same level and can be operated by one man, thanks to the radio control unit for crushing and driving, which ensures safe and efficient operation.

The high throughput of the RM100, despite its transport weight of only 28 ton, convinced the Australian building contractors at the very first demonstration, as did the classification performance of the TS3600.

Thanks to their compact dimensions, RUBBLE MASTER Compact Recyclers can be transported from one site to the next quickly and easily. An advantage that will ensure that the product will rapidly gain popularity in Australia, too, believes Rubble Master, who has its manufacturing facilities and head office in Linz, Austria.

RM80 with OS80 recycling demolition debris Rubble Master already has a rather long reputation with their machines in Australia. The first RM80 in

30

Australia was sold to Demolition contractor All State Group Pty Ltd in Adelaide through the Australia and Asia/Pacific region dealer Wieland Process Equipment Pty Ltd. The dealers today have now established a new entity focusing on mobile crushing named Global Crushers and Spares Ltd. The first RM80 was commissioned on a small site where two cottages had been demolished. This relatively small job consisting of about 600t was finished within a few of days. A minus 20 mm product was produced and used in the development as a base course for a new road.

All State Group Pty Ltd have purchased the RUBBLE MASTER Compact-Recycler RM80, equipped with the patented oversize grain separator

OS80 plus return conveyor. All State had a fixed crushing installation and decided to go mobile but needed a machine that was easily transported and versatile enough to cope with demolition crushing through to straight quarry crushing.

Wieland Process Equipment Pty Ltd has also sold another RM80 with OS80 to D & T Calvani of Forbes in NSW. The contractor had been looking to find a solution for producing a minus 20 mm material without the initial, high capital cost of purchasing a tracked primary, secondary and separate screening unit. The distributor suggested a RM80 impact crusher with mobile OS80 grain separator and re-feed belt. This duo produces grain from 0/22 to 0/63 mm in a single pass with only one operator from

PDi • Issue 3 - 2008 • Aug - Sept

Demonstration of RM100 and TS300 in Australia last December. can be produced. This final product is perfect for various feeding material to a high-quality cubical road building applications or as drainage material. final grain. The crusher settings are at maximum Calvani went to see the RM80 in operation at throughput and minimum wear, with the OS80 All State Group in Wingfield and the order was separating all oversize material at the end of placed within the following week. the main discharge belt by three finger screen www.rubblemaster.com cascades. So up to 120t/h of defined value grain

Company awarded funds to invest in Extec recycling equipment In Australia the City Circle Group was recently awarded a $500,000 grant from Sustainability Victoria to invest in an Extec C12+ mobile concrete crushing plant and Extec S-6 screen. From the government’s perspective, building and construction waste recycling is an attractive area to invest in as it guarantees large tonnages of reclaimed material. The mobile Extec C12+ crusher also provides the state government with the opportunity to open up new recycling possibilities in regional areas of Victoria. Previously, demolition waste in these areas was either dumped as landfill or transported to the large re-processors in Melbourne. By operating the mobile Extec C12+ crusher on-site in regional Victoria intra-state transport and material contamination from other sites are eliminated.

Demolition has been the core business activity of CCG for the past 25 years. According to CCG business development manager Andrew Neideck, the company diversified into recycling in 2001 as a result of the escalating cost of transporting and tipping demolition waste. This year CCG plans to double output of reclaimed concrete material to 350,000t and is confident it can sell more than it can produce.

Neideck points out that there is no shortage of demolition waste to recycle as CCG operates the Extec equipment on its own demolition projects as well as to finish off on other companies’ projects.

“The Extec C12+ crusher and Extec S-6 screen are on tracks so we can transport them on low loaders to a site and then move them around to the various stockpiles,” says Neideck. “It usually takes only a day to transport, off-load and set-up the Extec equipment ready for operation. We prefer at least 3,000t of material to crush, which will require the equipment to be onsite for a week. Larger projects such as the Avalon Airport near Geelong can take up to 3 months and crush 30,000t of material.”

Another benefit of recycling demolition waste is the recovery of scrap steel. According to Neideck the return on scrap steel is currently $330/t, which can cover the cost of fuel to crush the concrete.

The return on the reclaimed concrete material is up to $15/t and most developers sell it on for road base and drainage. However, developers can also negotiate with their contractors to utilise the reclaimed concrete material onsite and eliminate transport costs.

www.extec.eu

Upgrade for Extex crushers Upgrading of the Karuah to Bulahdelah Pacific Highway north of Newcastle, Australia, comprises 23km of dual concrete roadway and seven new twin bridge structures. The site is a parade of Extec equipment crushing and screening fill material for the road base. Lynch Contractors Pty

Jack Lynch in front of one of his Extec C12 crushers.

Ltd is working as a crushing contractor operating Extec C12 crushers. “The Extec C12 crusher’s reverse jaw allows wet, sticky material to be released. It has been a big plus on this project, because of the very wet weather we’ve experienced. Importantly, it has meant that we can be back on the job faster after rain interruptions, minimising delays on site for the crushing operations,�says Lynch Contractors principle Jack Lynch.

There are four cuttings on the project to enable the highway earthworks to be completed.

Prior to crushing operations, blasting took place to remove the hard rock

from the cuttings. The rock is then crushed and screened to various specifications for fill along the two sections of roadway. No imported fill material is required for the project.

Jack Lynch bought his first Extec machine, a Robotrac in 1998, and now operates two Extec track-mounted mobile C12 crushers, one Extec track-mounted mobile C10 crusher and two Extec E-7 screens, which are all deployed on the Pacific Highway upgrade project. One of the Extec C12 crushers, in conjunction with the E-7 screen, is crushing 200t/h of 65mm minus aggregate used as sub-base and base material. The other Extec C12, also in conjunction with the E-7 is crushing 220t/h of 75-150mm drainage blanket aggregate. “The Extec crushers and screens are simple to operate and the stabilisers on them are excellent for levelling and set up,� says Jack Lynch. “Extec’s parts and service is great. The range of parts available out of their Sydney warehouse is excellent, and regular contact with the Extec personnel ensures that back-up is always there if required, not that this has been a concern for me as the Extec crushers just keep on keeping on.�

www.extec.eu

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ESPECIALLY IN HEAVILY REINFORCED CONCRETE $IAGRIP‰ TOOLS MEAN TROUBLE FREE SAWING THEY JUST WORK THEIR WAY THROUGH THE TOUGHEST MATERIALS

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Issue 3 - 2008 • Aug - Sept •

PDi 31

WALL & WIRE SAWS It is with a certain amount of surprise that we can state that the opportunity is not taken more widely from manufacturers to contribute with editorial material when PDi has a special feature on wall and wire sawing equipment.

Wall sawing is, besides drilling equipment the core in the professional concrete sawing and drilling industry and used widely both for traditional concrete sawing and drilling, demolition purposes as well as for dismantling.

Wire sawing equipment found its place

Above the new Pentruder 3P8 from Tractive in operation.

Wall sawing equipment, the foundation of a professional concrete cutter’s daily work, has seen a fast development during the beginning of the century. Wire sawing equipment on the other hand has instead consolidated its position as the method for cutting, demolishing and dismantling heavy duty concrete structures.

32

But this year we have not seen so many new wall and wire sawing products being released. One the other hand today’s equipment for wall and wire sawing demand a lot more then some years ago and a product release is preceded by a long period of product development and tests.

At the end of the 1990s and beginning of 2000 wire sawing equipment had a strong re-entrance in the concrete sawing and drilling industry. Wire saws have been used to some extent before that after being borrowed from the stone processing industry. The majority of the manufacturers launched new models of wire sawing equipment. For some years the use of wire saws also increased in applications where other types of concrete cutting equipment were used previously.

Today use of wire saws has cut back a bit and are mostly used in the type of applications where they are most efficient which is difficult dismantling jobs, removal of large concrete structures like foundations and bridges or to make large holes in thick walls. The diamond wire technique is absolutely unbeatable in these applications.

Wire sawing is very environmentally friendly as it makes very little sound as long as slurry is not a problem on the work site.

A wire saw needs to be easy to operate, easy to transport and to set up and at the same time has an extensive diamond wire capacity. Most of the larger players like Tyrolit-Hydrostress, Hilti, Husqvarna, Braun Maschinenfabrik, Cedima, Tractive, EDT Eurodima and Plattner.

The most recent development in terms of wire saws is Tractive’s Pe n t r u d e r 3 P 8 .

This product was shown as a prototype for the first time at Bauma 2007. The first pre series has recently been tested on several projects in Europe. And before that Husqvarna released their CS 2512.

pened and this device is probably the most important for a professional concrete cutting firm. During the 1990s and the beginning of this century hydraulic wall saws were very much the dominating machinery in Europe and also in USA even though high frequency equipment was used to some extent. But at Bauma 2004 the industry experienced a clear trend shift. High frequency equipment was introduced by almost all manufacturers of concrete sawing and drilling equipment. But the technique was not in all cases tested enough and many manufacturers have remodelled their products. Today high frequency equipment is the dominating type of power source. But not to forget that hydraulic wall saws are still considered in more heavy duty operations and found its niche just like the wire sawing systems.

In terms of wall saw manufacturers there are a few more then the wire saw manufacturers. To the list above you can add companies like Demco, Weka, Gölz and Fast Verdini. Both German manufacturer Dr Bender and US company 400 Hertz Engineering headed by Ed Dempsey is developing high frequency motors for use in concrete sawing and drilling applications. The latest developments in high frequency wall saws since Bauma last year comes from Tyrolit, Husqvarna, Tractive and EDT Eurodima.

Tyrolit released their new WX-15 electric wall saw, Husqvarna their electric WF 440 HF and EDT Eurodima the new electric 32 kW wall braxx Tornado sb300. Tractive has built their line of high frequency wall saws now containing the 6-12HF with and 18 kW motor and the 8-20iQ wall saw with a 27 kW motor.

Gölz has released a new electric wall saw named WS 600 and Dutch manufacturer Core Powertools has released a hand held electric plunge saw also design for wall sawing jobs named HSX 350.

High frequency equipment has practically swept the track by offering much lower weight, much higher efficiency as well as higher safety and better working environment. On the following pages there are some case stories on the subject of wire and wall saws.

Tight time frame no problem for Pentruder

The wall saw, an important device In terms of wall sawing equipment a lot more has hap-

PDi • Issue 3 - 2008 • Aug - Sept

A preseries Pentruder 3P8 wire saw from Tractive was recently been put through its paces during a performance test, cutting down a railway foundation on a jobsite in

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The new Pentruder 3P8 in action on a worksite in Sweden.

the city of Eskils-tuna in Sweden. As the train traffic was limited to half the capacity during the down time, the time schedule was very tight. The cutting was planned to continue uninterrupted, 24 hours a day, with staff working in three shifts.

Three different wire saws

“The fact that the Pentruder 3P8 wire saw could be fitted directly on the concrete foundation, to make a direct cut, saved us a lot of time and trouble when setting up the machine,” says Betongborrar’n partner Anders Jäderholm.

36

To be sure the job could be finished within the specified time frame, the contractor, Betongborrar’n, had planned to use three different wire saws. After attempting to setup the other wire saws, it was decided to go with the Pentruder 3P8 for the entire cutting. The length of wire in contact with the concrete prohibited the use of their smaller machine, as the wire would slip on the pulley much of the time. Problems with getting the bigger industry standard machine close enough to the object to be cut, and securing it to the scaffolding it had to stand on, prohibited the use of that machine.

“3P8 saves time” “The fact that the Pentruder 3P8 wire saw could be fitted directly on the concrete foundation, to make a direct cut, saved us a lot of time and trouble when setting up the machine. In contrast to our bigger machine the lightweight modules can be mounted directly on the surface being cut. Together these features made the setup quick and convenient,” says Betongborrar’n partner Anders Jäderholm.

The foundation that was cut down was approximately 2 m wide and 8 m long. The pieces were then cut in several 2 m long by 1.5 m wide by 2.5 m high blocks. This was the biggest size that could be conveniently transported

PDi • Issue 3 - 2008 • Aug - Sept

away from the jobsite.

The bottom cut was 2 m x 8 m for a total area of 16 m2 and took 3.5 hours, including some problems with loose material, which jammed the wire. For the whole job, the performance was never below 4.5 m2/hour. Typically 5 m2/hour and upwards was achieved when conditions were best.

Big wire magazine

The cutting went very well and the contractor especially appreciated the big wire magazine and the smooth operating automatic feed control. “This is what it should be like,” says Anders Jäderholm. “It’s so easy to operate, and we have never seen a wire saw that can start the wire like this. We didn’t even chamfer the corners. With the other saw, it would require several additional satellite pulleys, and a lot more time to complete the setup. Another big plus with the Pentruder 3P8 is the fact that the feed control is entirely electric and there is no need for an air compressor.

For us this is especially important in the wintertime in damp and cold conditions.”

The job was successfully finished well within the specified time frame and Betongborrar’n decided to invest in the new Pentruder 3P8 even before the job was finished.

Design reduces wire wear In the 3P8, the manufacturer has taken steps to reduce wire wear by careful design of the pulley configuration, which aids in the wire rotating to prevent the wire form wearing flat on one side only. A special rubber compound has been developed to improve traction to prevent wire slippage and prolong the life of the main drive pulley. The design of the pulleys allows the rubber inserts to be replaced quickly and easily.

The Pentruder 3P8 wire saw is part of a system that can be expanded to include a wide range of high frequency equipment. The current range of five different HF-driven wall saws and the MD1 core drilling machine will be followed by products now in development, such as a corner saw, chain saw and floor saw.

www.tractive.se

Dry wire sawing in heavily reinforced concrete Controlled demolition of the multi-purpose atomic research reactor at Karlsruhe in Germany has been carried out using a Hilti DSWS15 diamond wire saw system using dry cutting.

Although construction of a secure, permanent enclosure around the reactor had been planned, the research centre at Karlsruhe decided that complete demolition offered many advantages. DBS of Durmersheim, specialists in diamond coring and sawing, were awarded the contract for a project that involved cutting an opening to provide access to the core of the reactor. This would subsequently allow demolition and removal of thousands of tonnes of concrete and metal.

Dry all through A Hilti DS-WS15 diamond wire saw equipped with DS-W 10.2 dry, a diamond wire specially developed by Hilti for dry cutting, was chosen for this demanding job. Where contaminated concrete and steel structures are to be demolished, dry cutting with diamond wire makes huge cost savings possible, as the time consuming and costly sealing of the cutting area to ensure containment of the cooling water normally used in conventional cutting techniques, plus subsequent removal of water from the resulting concrete slurry, are no longer necessary.

Tapered cuts in a round structure

A job for specialists: Installation of the pulley stands complete with dust removal channel.

The reactor was shut down in 1984 after nearly 20 years of use as a test facility for the planning, construction and operation of heavy-water reactor systems as well as the testing of fuel elements and materials. Before demolition of the reactor could start, an opening providing access to the reactor core had to be cut to allow removal of materials and parts of the basic structure. Cutting an opening 1.4m x 2.2m through a thickness of up to 1.7m presented a challenge as cuts had to be made at several angles in the circular concrete wall. DBS brought their great experience in measuring out and checking alignment before setting up the Hilti DS-WS15 electro pneumatic diamond wire saw with the pulleys placed in carefully thought-out positions.

Unique technology for optimum advance

Preparation of the diamond wire. The wire saw and extraction system for contaminated dust can be seen in the background.

Thanks to step less variable cutting speed and pneumatic control of wire tension, even steel reinforcement up to 28mm thick could be cut through effortlessly with this system. DBS was able to take full advantage of the Hilti wall saw’s pneumatic control, which adjusts the saw’s rate of advance automatically according to the resistance presented by the material being cut. Due to the complexity of the job and the exceptionally heavy reinforcement in the concrete, this unique control technology was able to demonstrate its superiority. Only in this way was it possible to make a professional job of the controlled demolition of the contaminated concrete and steel structure, without need for comprehensive sealing work and slurry disposal measures, and thus without unnecessary additional cost.

Stringent safety regulations and restrictions regarding total working time, strict rules about breaks between work and the time-

Controlled demolition to perfection with all the advantages of dry cutting. consuming process of passing through a number of air-lock chambers on the way in and out of the reactor area further underlined the need for extremely reliable and efficient equipment.

The success achieved with the Hilti DS-WS15 electro pneumatic diamond wire underlines the system’s exceptional performance even under the most demanding conditions.

www.hilti.com

Issue 3 - 2008 • Aug - Sept •

PDi 37

...New Demol Husqvarna Construction Products has significant widen their strategy. After years of building up a very strong position as a supplier of diamond tools and machinery for concrete cutting and floor grinding Husqvarna is now expanding and diversifying into a completely new product group, remotely controlled demolition robots. PDi editor Jan Hermansson reports.

I have been reporting on the demolition and concrete cutting industry for almost 20 years and it is easy to identify events that standout. One of those occurred on 11 September 2008 when Husqvarna Construction Products exclusively invited PDi Magazine to reveal its first product for the demolition industry, the remotely controlled demolition robot Husqvarna DXR 310.

Major events Since the end of the 1980s I have witnessed the development and introduction of a vast array of demolition and concrete cutting equipment. This has included remotely controlled machinery, diamond wire saws, fixed and rotating hydraulic demolition attachments, mobile recycling plant, floor preparation and grinding equipment, heavy duty hydraulic concrete cutting equipment and high frequency cutting and drilling machinery. These are just some examples of product developments that stand out.

Husqvarna’s interest in the demolition robot segment is not new. The company has been studying the market for several years, but it was less than two years ago when the decision was taken to develop their own machine. The engineer and designer Thomas Nilsson was selected as Research and Development Group Manager responsible for the DXR 310

robot, which took 18 months to develop.

Beneficial details “An experienced operator can easily adapt to work with the Husqvarna DXR 310, but he will also find that in many aspects it is quite different and even easier to work with compared to other existing machines. It has been developed in house by Husqvarna and based on several new improvements beneficial for operators and we have produced a remotely controlled demolition robot that makes a difference,” says Thomas Nilsson.

The base is a one piece casting with no parts welded to create a stronger and sturdier machine. The boom system, with a maximum reach of 5.5m is made from special steel that can resist very rough treatment. The design is different from the other existing machines on the market. The reinforced steel hood has a modern look and most of the extras on the machine, like lamps and lifting eyes, have been integrated into the machine body. The lamps are LED giving a better light as well as longer life and ability to withstand tough treatment and vibrations. The robot is electro-hydraulically driven and has an output of 22kW. Machine weight

Photos: Jan Hermansson & Husqvarna Construction Products The control box is equipped with several new features, including transmission signals supported by Bluetooth technology, a screen that displays any malfunction, operations controlled by joysticks and control box holder improved for easier handling and better ergonomics.

The proud trio from Husqvarna Construction Products with the new baby Husqvarna DXR 310 fitted with an Atlas Copco SB 202 breaker. From the left Head of Construction Equipment Alexander Wennergren-Helm, President Anders Ströby, and Thomas Nilsson, Business Manager, Demolition Equipment.

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PDi • Issue 3 - 2008 • Aug - Sept

lition Robot! without attachment but including support legs and telescopoc boom is 1,900kg, which means that the DXR 310 targets the weight range with the highest volume potential.

Maintenance and service friendly

as oil pressure, additional greasing required and oil filter change. Another detail is the control box strap that has been replaced by a fixed lightweight ergonomical frame that simply hangs on the operator’s shoulder and is easy to put on and take off.

Extensive field tests

Despite DXR 310’s compact design and low height up to the bonnet top there is still a lot of space under the bonnet for easy servicing and maintenance. Hoses can be released without the use of any tools. The power unit is located above the undercarriage, similar to the Brokk 180 and opposite to the Finmac F16 that has the power unit built inside

PDi met the Husqvarna team in Jonsered outside Gothenburg in Sweden with the first prototypes, which have been on field tests since July and will continue throughout the autumn and winter. Main production of the DXR 310 is scheduled to start in November and the official product launch is set for January 2009. Production will be located in the Husqvarna factory in the city of Huskvarna, Sweden. Initial marketing will focus on Sweden The futuristic lightweight car- and selective markets in Europe to be followed riage frame for the control box by North America as well as the rest of the and the control box itself is a world. “When planning and designing DXR great benefit for the operator.

310 special consideration was taken to simplify service and maintenance. Besides that we believe with our broad network of Husqvarna sales companies and service centres around the world we are well placed to provide customers with the very best support,” says Husqvarna Construction Products president Anders Ströby.

the undercarriage. In transport mode the DXR 310 is 2000mm long, 1500 mm high and 780mm wide, a width that makes it possible to enter an 800 mm door opening.

New control system concept Together with the boom the control system is the heart of a demolition machine. Husqvarna’s remote control system uses Bluetooth technology for transferring signals. The steering and control system uses the well-known EPEC standard, also used in tunnelling machines. Husqvarna has developed all software in house. The remote control box

contains several novelties. For example, many operational functions can be made directly with the two joysticks instead of separate buttons and switches.

In addition the control box is equipped with a 4.7 inch colour screen displaying easy to read information for the operator, such

LED light has proven to take much tougher treatment and they have a much longer life then other types of construction vehicle lights, up to 20, 000 working hours. Lifting eyes are integrated in the cast body.

New situation for users Going from one dominant manufacturer in Brokk, to three manufacturers in the same region in just a couple of years will create a completely new market situation, which will be beneficial for all users. “In my opinion there is enough market potential for all of us.” says Ströby.

“With the extensive initial design and development work we have done, costing more than EUR 3M, we are

Steep stairs no problem for DRX 310.

The low height of the machine gives the operator a better view of the work.

The robot in the picture is a prototype. When in series production Husqvarna DXR 310 will have a telescopic boom as standard.

not aiming for anything else than becoming the leading supplier of remotely controlled demolition robots,” adds Thomas Nilsson.

Issue 3 - 2008 • Aug - Sept •

PDi 39

The right weight ratio and balancing of the machine has been paramount during its development. That is why most of the weight has been placed low and far back on the unit. When the machine is brought from support leg position to rubber track position the body slides down nice and smoothly.

Husqvarna estimates that the current annual market for remotely controlled demolition robots is about 450 machines, and believes there is huge potential for its demolition robot.

Brokk currently sells the majority of these types of machines and Husqvarna’s sales target is around 50 units in the first year. The DXR 310 is the first in a range of models to come, and will be followed by a smaller model to be launched during 2009.

Husqvarna Construction Products may have been criticised for its buyout expansion strategy, but in the last two years there

Husqvarna DXR 310 comes with a telescopic boom system as standard.

The telescopic boom has a maximum reach of 5.5 m.

have been several examples of organic growth, where the development of the DXR 310 is a prime example of that.

40

www.husqvarnacp.com

PDi • Issue 3 - 2008 • Aug - Sept

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NEW WET...

create a lot of pollution in the form of dust and slurry. This would be a big problem without the implementation of new and stricter regulations, as well as action from manufac-

Handful of suppliers

t r e t il

concrete coring, large quantities of water have to be used and this water gets very dirty. Using a wet vac to extract the water prevents the working area being wet and dirty. In the Dustcontrol wet vacs, dewatering of slurry is integrated into the unit and clean water is pumped out of the drain. The slurry solids are collected in a filter bag for ease of handling and disposal.

The W-Line wet vacs are easily dismantled for cleaning and decontamination. This is an important detail on units requiring frequent cleaning. The DC 50-W is equipped with a separate pump and can empty the canister automatically during vacuuming. The water that is pumped out is clean, while the dust and water slurry is contained in a filter bag inside the canister.

The new Dustcontrol wet vacs are narrower and more compact with many grab handles to improve loading and unloading and the large wheels allow for easy transport over rough terrain.

There are a number of manufacturers that promote themselves as providers of professional wet vacs. Two of them, Hilti and ICS, are also manufacturers of concrete sawing and drilling equipment. Hilti has their VC 40 UM and ICS the TSS Vacuuming System. Another manufacturer is US Ruwac, offering several systems for containing slurry like the wet vacs WSP 2000 and WSP 4000 as well as the sump and slurry vacuums SPS 35 and SPS 250.

wa

turers.

A lot has been done and can be done A lot has been done in the demolition and concrete sawing and drilling industry, but still a lot more can be done to create a healthier working environment. Improvements on situations like noise, vibrations, dust, slurry and working positions, can all be improved including equipment that can reduce the amount of dust in the air as well as hazardous concrete slurry.

Concrete slurry is a big problem when cutting concrete structures with diamond tools. The slurry often makes a mess on the jobsite and complicates the job. Besides that the concrete slurry contains hazardous substances that are bound in the concrete and get released while cutting. There are many ways to contain slurry but very few standards. Often the slurry is temporarily contained by simple means and later taken away by wet collectors. In this process a lot of water is contaminated. In order not to waste so much water new wet collecting systems have the ability to recycle the water for reuse on the jobsite.

There are only a few wet vacs available for professional users and with little product development in this area much of the focus has been on creating efficient dust extraction or vacuuming equipment.

New line from Dustcontrol The latest innovation in wet vacs comes from the manufacturer Dustcontrol. The company is a big player in stationary industrial dust extraction and air cleaning systems, but has also a wide range of mobile equipment for dust extraction and collection of wet material, like slurry. Dustcontrol has showed a determined focus on their mobile equipment, which is sold world wide through a number of subsidiaries and independent distributors.

Recently the company upgraded and extended its three model W-Line of wet collectors, DC-25W, DC-50W and DC-75W. Dustcontrol says that the W-Line, when working with

f

preparation activities

ity for closed circuit usage. They are suitable for slurry extraction, during core drilling and slurry recovery.

to

cutting and floor

A “Green” alternative in the building and construction industry that IACDS President Pat O’Brien mentions in his column in this issue is becoming a more and more topical subject.

ys

Demolition, concrete

Other wet vacs on the

r e Th 42

er

t t e b e

Five models from Pullman Ermator

market are the Pullman Ermat o r s W- L i n e containing five different wet separators. The range has been re c e n t l y re m o d elled and contains the larger W2000/2 slurry vac. W2000/2 extracts the slurry and filters the liquid into clean water. There are three steps of filtration, metal filter, sediment tank and a non-woven filter. The vacs have automatic water level control and drainage guaranteeing continuous liquid flow and the possibil-

r a e

PDi • Issue 3 - 2008 • Aug - Sept

Slurry becomes pellets and drinkable water Another revolutionary wet collecting system, not yet launched, is being developed by the company Göltz in Co-operation with the Swedish inventor Ove Persson at Jerneviken Maskin. The system is able to take care of the polluted water and clean it to such an extent that it is drinkable. “This is a world first and the industry has never seen something like it before,” says Ove Persson.

The dirt in the water is completely separated and dried out and made as pellets, which can be collected dry on a pallet.

Dust a far bigger problem Even if water and slurry causes a lot of problems, if not taken care of properly, dust is much worse and is transported in the air and hard to detect. Also in this area the industry’s strive to create a “greener” working environment is obvious and a lot has been done. Many countries have very tough restrictions how dust extractors and air cleaners should be designed and a HEPA filter is an absolute necessity.

The industry’s professional manufacturers keep at

th

h t i en w

the same pace as the development of new restrictions and sometimes they are also often ahead of the regulations. Gone are the days when demolition, concrete sawing and drilling and floor preparation contractors bought cheap vacs for a specific job and thrown them away afterwards. Current working situations and the demands from customers does not allow use of inefficient dust extraction equipment.

But still there is more dust to take care of today than before and one reason for this is the fast growing use of floor grinding and polishing machines. Preparation of concrete floors is now a big issue. Different coatings are removed with efficient floor grinders and the concrete surface beneath is used as a final floor product. But it needs to be ground and polished in many steps, which creates a lot of dust. So the demands for powerful dust extractors are bigger then ever.

single-phase unit. The new dust collector has a 4kw, 415v motor and has been designed to cope with the high volume of dust created by larger surface preparation equipment. The new unit is fitted with clear flow PTFE filters as standard with an optional hepa filter also available.

Standard hose connection is 70mm, however, a 50mm adaptor can be used to suit the particular application. Careful consideration was given in the design process to ensure the finished machine was compact and easy to transport. The overall height is just 1.4m and is able to fit easily into most commercial vehicles. Another benefit is a 415v power takes off from the unit allowing both the dust collector and connected surface preparation machine to be powered from just one mains socket.

Noise levels are also low when compared to single-phase dust control vacuums.

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Both the water and the slurry pellets can be reused. More information on this revolutionary product will feature in the next issue of PDi.

r u o y

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Grinding Power DSM 430/530SL DSM 500S/650S/800S System DOC*

HTC Sweden’s introduction of dust extractors

Professional grinding solutions for concrete, screed, terrazzo and natural stone floors.

But the clearest trend comes from the

Own development Many makers of floor preparation equipment have a close relation with manufacturers of dust extraction equipment, but there is now a trend where they also start to develop vacs for their own machines.

Husqvarna Construction Products that acquired King Concepts make a couple of models for their own floor grinders. The Husqvarna DC 3300 is a single-phase dust extraction unit for wet and dry applications. It has the suction capacity and filtration technology for even the toughest jobs, effectively and efficiently eliminating airborne dust.

The bigger Husqvarna DC 5500 has exceptional performance to meet even the most demanding industrial application where high suction and flow are required, to eliminate airborne dust. This highly mobile and versatile unit can be used for both wet and dry applications coupled with the Husqvarna PG 820 or PG 680.

SPE’s new 3-phase The UK manufacturer of floor grinders SPE International recently launched a 3-phase version of the company’s 316

world’s biggest manufacturer of floor preparation equipment, HTC Sweden AB. Dust extraction equipment from former Ermator and current Pullman Ermator has been and still is connected to HTC machines. But for less then a year HTC has been developing its own line of dust extraction equipment. HTC were the first to launch integrated

AND DRY...

(*DOC: DSM 800)

D-73117 Wangen (Germany) Phone +49 (0) 71 61 2 00 50 www.schwamborn.com

Issue 3 - 2008 • Aug - Sept •

PDi 43

COLLECTORS dust extractors on their bigger grinding machines HTC has introduced its own vacs HTC 5 iAD, HTC 10 iAD and HTC 15 IA. The company claims that this is a revolutionary invention in a field where nothing much has happened during the last 30 years. There is a long list of advantages with the HTC vacs compared to traditional vacuum systems. The vacs were introduced to the Swedish market during the spring and the launch for the rest of the world started this summer.

The HTC vacs all have continuous working with automatic filter cleaning, which gives a low filter cost and a much higher efficiency compared to traditional vacuum systems, the company claims. They all have an integrated preseparator, which reduces the strain on the filter. The machine is equipped with a fine filter tube and H13 filter and changing the filters is easy. The vac is small compared to its performance and can be rotated for filter change, maintenance and transportation. The vacuum lowers in height to ease transportation.

The vacs are specially adapted to the HTC grinding machines. HTC 5 has one Longopac, HTC 10 two and HTC 15 three, which makes it possible to work longer before a change of bags on the bigger machines which can be done while the vac is running. The big HTC 15 iAD can handle more than one grinding machine.

All vacs have the same spare parts and filters and there is a 2 year warranty.

The working environment has been a key issue when designing the HTC 5 iAD, HTC 10 iAD and HTC 15 iAD. The cyclone in the vac is especially designed to maximize the separation of the very small dust particles that occur when grinding and minimize the emission of dust into the air. It is also possible to divert smells. The vac is constructed so a palette can be placed under it to collect the dust bags (Longopacks) to avoid heavy lifting.

New air cleaner from Dustcontrol Even though some of the machine manufacturers that create a lot of dust choose to tailor make their own vacs, the real competence and knowledge of dust extraction system is with the specialist developers like Dustcontrol, Pullman Ermator and Ruwac. These manufacturers have the unique competence in terms of dust extraction and air cleaning and also for floor preparation purposes.

Dustcontrol has eight different single-phase dust extractors and six 3-phase dust extractors, including machines specifically for the rental industry, demolition, concrete sawing and drilling and floor preparation. They also have a semi mobile system where a jobsite can be sealed off from dust and brought outside the building through a closed system. The company also has a line of air cleaners named DC AirCube as well as the bigger and recently released AirCube 2000.

DC AirCube 2000 is a very powerful single-phase air cleaner and can clean up to 1,800m3/hour. It has a 0.7m2

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Issue 3 - 2008 • Aug - Sept

prefilter and a HEPA H13 micro filter of 10m2 and a filter indication lamp that lights when it is time to change the filter. The air exhaust is directed upwards to prevent dust whirling up from the floor. With its ergonomic design it is easy to carry and transport. It is also prepared to connect to an exhaust hose without a reduction in performance. DC AirCube 2000 can be positioned horizontally flat on the floor with the exhaust pointing to the side.

Additional news from Dustcontrol involves the recent appointment of national sales manager John Adeimy to support the growth and marketing objectives in the US. John Adeimy has a background in managing sales and marketing operations in the automation industry. Before joining Dustcontrol, Adeimy worked for companies such as Beamex, Honeywell, ABB and Monsanto.

Dustcontrol’s operations in the US is expanding and John Adeimy has a key role in opening new markets and industries for Dustcontrol products, as well as nurturing existing ones through an established territory sales force.

In Russia Dustcontrol has recently signed an agreement with the company SovPlym. The company was

Issue 3 - 2008 • Aug - Sept •

PDi 45

founded in 1989 as a joint stock company between the Swedish firm PlymoVent AB and the Russian company Santech-oborydovanie (Sanitary equipment).

In the UK the famous Canterbury Cathedral is under continuous restoration and is in need of a clean and healthy work environment. Dustcontrol has installed a DC11 module 12kW P that has gone into their workshop for source extraction from cutting and grinding machines.

Canterbury Cathedral is the Mother Church of the Anglican Communion and seat of the Archbishop of Canterbury. It is known for the beauty and the unique atmosphere of one of the great holy places of Christendom.

PullmanErmator gears up There is also news from another dust extraction and air cleaning equipment manufacturer, PullmanErmator. Earlier this year the much anticipated T11000 was launched. With almost twice the filter surface area, compared to its little brother the T7500, and four hepa 13 filters, the T11000 can cope with a high airflow. A number of new solutions also ensure that dust does not block the prefilter packet. Air is led out through a central exhaust, perfect, for example, when grinding an epoxy floor.

“With no less than 11kW, the T11000 is state of the art, and has been designed to give maximum suction and optimum filtering during long periods of continuous operation,” says PullmanErmator development manager Tomas Otterberg. “We’ve already sold several T11000s to the major grinding companies, and we seem to have got it just right.”

Also the small dust separator S25 has been launched.

Demand was apparently greater than PullmanErmator management had expected, as nearly 1,000 units have already been delivered in just two months. “Nice to know that we were obviously right on target,” says sales manager Stefan Bergsten.

PullmanErmator’s mission is to develop and produce dust separators that make life simpler for anyone working in construction and manufacturing. Now the company is about to launch the first model in a new generation of dust separators. The new S1400 was designed to manage extremely fine

and volatile dust. Wood dust, plaster and other hazardous particles can be aspirated without releasing any dangerous substances back out into the atmosphere.

The S1400 boasts 1.2kW of power and features advanced jetted cleaning of the filtration system, which consists of a fine particle filter and a Hepa13 filter. A Longopac is used for collection, allowing for 100% dust-free emptying of the bag. All this is protected in a transparent container.

The machine is also equipped with a manometer and an electrical socket for the connection of power tools.

Production of these new units has just started and the first deliveries to retailers and customers can be expected in September. The machines have been developed largely in response to demand from the customers Pullman Ermator has also set up its own premises in the US. PullmanErmator has been growing at record speed over the past two years, and has quietly succeeded in spreading its air purifiers and dust extractors around much of the world. Over the past four years, PullmanErmator has expanded its market mostly in Europe, but also latterly in Asia and Australia. “It’s just a matter of recognizing that we’re way ahead of the game in Sweden in terms of environmental thinking,” says CEO and owner Torbjörn Bengtsson. “The great challenge has been to start sales in the US, a vast market, almost as big as the rest of the world put together. The idea was to start gently and sell via an agent, like in most other markets. But it turned out that interest among Americans had been wildly underestimated.”

“At the World of Concrete in Las Vegas, there were crowds at our displays and long lines,” adds PullmanErmator sales director Fredrik Åkermark. “The US seems to be a bigger prize than we could ever have imagined. Managing this market through an agent proved not to be an adequate solution.”

A new company had to be set up insitu, which is owned and run together with one of the leading industry figures in the American market, Pullman-Holt. Some of the Swedish employees will move over to the US company’s new premises in Tampa, Florida. Website for the US company is www. pullman-ermator.com.

Outdoor Dust busting with the new Dustboss DB-45 Dust busting is also needed outdoors when it comes to demolition. US Dust Control Technology has unveiled the new DustBoss, DB-45, a mid-sized unit that delivers an efficient control of airborne particles and surface dust, while using less water and manpower than traditional hand spraying techniques. Developed in response to market feedback, the portable DB-45 is well suited to indoor and outdoor recycling areas, waste processing, rock/aggregate crushing, bulk material handling and other dust-generating operations in confined or covered areas.

The introduction comes at a time when a wide range of industries are taking a hard look at potential dust hazards, both indoor and outdoor. With the possibility of tighter regulations looming, many contractors and processing facilities are looking for the latest advancements in particle suppression technology in an attempt to reduce the chance of health or safety risks for workers, local communities and the environment.

“This unit is designed for applications in which the power and long throw of our larger

46

unit would be inappropriate, but there’s still a need for significant coverage,” explained DCT CEO Edwin Peterson. “Like its larger cousin, this model delivers a dense curtain of water droplets atomized from 50-200 microns, the specific size range that creates the greatest attraction to most dust particles,” he said.

Despite its compact size, the oscillating DB45 can deliver a virtual dust barrier that covers 12,000 ft2 (1,115 m2) from a single location, with a throw of nearly half a football field. All of the DustBoss models are availa b l e with the company’s patentpending Variable Particle SizingTM technology,

PDi • Issue 3 - 2008 • Aug - Sept

providing customers with a wide selection of different nozzles for suppressing a broad range of particle sizes. VPS can be used to control airborne dust outside the typical 50-200 micron range, such as odour-causing vapour and solids that may be a micron or less in diameter. It can also be an advantage for customers seeking to maximize control of a specific particle size, as when suppressing dust from a single type of material.

With its 15 HP (11.2 kW) fan, the DB-45 generates 18,000 ft3 (510 m3) of air-flow to maximize coverage and particle capture. The new design features

adjustable elevation from 0-50°, with 40° of oscillation, and can be ordered on a wheeled carriage mount or on a frame with a skid mount.

Requiring just 10 PSI (0.689 BAR) of constant water pressure for effective operation, the new model can be outfitted with an optional booster pump that delivers up to 200 PSI (13.79 BAR) for maximum performance. The unit can also be ordered with a dosing pump to accommodate odour control additives or surfactants to further enhance binding of dust particles.

The machine is equipped with a 30 mesh / 595 micron pre-filter and 1-1/2in (38 mm) quick cam release, and it can be set up to run potable or non-potable water. Options include single phase or international motors, secondary filter system and stainless steel or nylon nozzles for special applications.

Designed for rugged durability, the DB-45 features a 3-phase motor with a service factor of 1.3, capable of operating at +/-10% of specified voltage.

Fan maintenance is required just once every 10,000 operating hours under normal conditions, while the oscillating motor is lubricated for life.

www.dustboss.com

PROMOVE HYDRAULIC HAMMERS A complete range of breakers up to 10,000 lbs operating through nitrogen and oil to deliver very high energy and productivity along with recognized reliability and low oil flow requirements.

The high back-pressure allowed makes initial installation and working set-up very easy.

Easy regulation of the working conditions: blow energy vs. frequency, working pressure are easily adjustable to meet optimal breaking performance.

Low vibrations and noise level: a sophisticated system of internal shock absorbers completely isolate the gun from the external casing.

Promove s.r.l. - Z.I. Lotto CA2 70056 - Molfetta (Bari) - Italia Tel. +39 080.3387054 Telefax +39 080.3387004 info@pmvpromove.it

www.pmvpr0move.it

The development and production of new compact loading, dumping and excavating equipment never seem to slow down but keeps a constant high pace. The last twelve months has seen a number of new products enter the market. Some are featured on the following pages.

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The new S70 Bobcat has launched the new S70 skid-steer loader, the smallest model in the Bobcat loader range. Replacing the 463, the new S70 combines the advantages of a compact loader with new features and improvements offering significantly enhanced performance and durability, the company claims.

The new loader is 901 mm wide, 1814 mm long with standard bucket of 2553 mm and an operating weight of 1291kg.

With its small dimensions, the S70 model can access sites with narrow openings and is ideal for work in tight areas.

It provides a versatile and compact solution for rental fleets, demolition, construction, landscaping, farming and general material-handling applications.

The S70 is powered by the 16.8 kW Kubota D1005E3B-BC-3 diesel engine, a Tier IV system that runs cleaner with 50% lower particulate emissions. Bobcat claims it has a higher power to weight ratio compared to other machines on the market. The S70 is also said to offer higher productivity through a 10% improvement in cycle times owing to faster bucket roll back and bucket dump functions. The new S70 can work with an extensive range of Bobcat attachments. The quick-change Bob-Tach frame ensures that attachments can be fitted securely and safely in seconds and can be combined with a choice of over 20 Bobcat attachments including breaker, dumper, dozer blade, scraper, sweeper, trencher, auger and backhoe.

The new T320 New since Conexpo is T320 compact tracked loader and V417 VersaHandler TTC being shown for the first time at the exhibition. The T320 model is a vertical lift path loader offering a 1.455 t operating capacity, making it the largest compact track loader manufactured by Bobcat, and extending the range of compact track loaders available from the company to six. Driven by a 70 kW liquid-cooled diesel engine, the new T320 is designed for increased productivity and greater attachment performance. The increased engine power, coupled with the rugged rubber track system, also provides increased output for tough pushing, digging and grading applications. In addition, the track system provides extra traction, reduced ground pressure and low ground disturbance, with superior flotation to extend contractors’ work seasons. The machine’s 457 mm wide rubber tracks produce just 4.2lb/in2 of ground pressure.

PDi • Issue 3 - 2008 • Aug - Sept

The T320 has a lift height of 3.277 m that follows a vertical lift path, allowing it to load trucks easily.

The design of the low-profile lift arms gives the operator an excellent view of the attachment and work area. Comfort and safety features are built into the T320 design with its deluxe operator cab. The unit comes with a fully adjustable suspension seat and has instrument panels that provide operational, diagnostic and monitoring features.

The new Bobcat V417 VersaHandler TTC is the fourth model in the VersaHandler telehandler line and the first to offer the Bob-Tachattachment mounting system. Selected attachments for large-frame skid-steer loaders, compact tracked loaders and all-wheel steer loaders are approved for use with the V417, providing advantages for customers who already own a large-frame loader.

The V417 TTC is designed with house builders, contractors, rental companies and landscapers in mind. The V417 features a 57 kW turbocharged engine in a frame that is only 1.842m wide. The 5.2 m lift height and 2.2 t capacity make it easy to lift, carry and place building materials or load and unload trucks. A contractor can easily and quickly go from pick-and-place tasks to other jobsite duties using the standard-equipped BobTach system, such as attaching an angle broom

to sweep away dirt and debris, or a bucket for grading and backfilling. Additionally, the V417 includes a universal joystick for control of attachment functions, boom extension and retraction, auxiliary hydraulics and boom float.

For enhanced productivity, operators can set the boom to automatically follow the ground contour when backfilling or grading with the boom float feature.

Bobcat launches new Micro‑Excavators Bobcat has launched the new E08 and E10 micro-excavators the smallest models in the Bobcat range. The E08 is a conventional model weighing 1028 kg with a maximum digging depth of 1.82 m. The E10l is a zero tail swing micro-excavator with a maximum digging depth of 1.82 m and weighing 1066 kg.

The E08 and E10 micro-excavators are easy to transport and both have a retractable undercarriage that takes the width of the machine down to only 710 mm. This allows easy access through a standard pedestrian doorway for work inside buildings or entry into back yards and gardens through narrow gates. In addition the integrated foldable TOPS on both machines aid passage through low headroom open-

COMPACT

News rains from Bobcat

ings. The minimal width of the machines allows for excellent manoeuvrability in confined spaces, while the zero tail swing design of the E10 is an additional advantage when working in tight areas. The sliding dozer blade extensions on the E08 and E10, a unique feature in this machine class, make it easy to reduce the blade width quickly in order to pass through narrow openings. There is no need to remove the blade side extensions. Once the excavators are positioned and ready for work, the undercarriage on the E08 and E10 can be expanded to 1m and 1.1m respectively, for maximum stability in all working conditions. The E08 and E10 are ideal for a variety of applications including demolition, refurbishment, landscaping, trenching and drainage.

www.bobcat.com

Issue 3 - 2008 • Aug - Sept •

PDi 49

CAT rolls out the new compact track loaders Caterpillar has added three new compact track loaders to its C-Series line of rubber-track loaders, providing contractors with an alternative for tackling jobs on challenging terrain.

Officially unveiled via a global webcast on 25 August and now available worldwide, the new 279C, 289C and 299C models feature durable, steel embedded track and steel undercarriage components to provide traction, durability and smooth rides in aggressive applications. The loaders have rated operating capacities of 1451kg, 1746kg and 1882 kg, at 50% of tipping load. Net power ratings are 61 kW for the 279C and 289C and 67 kW for the 299C.

“Simple and effective” “Simple and effective” was how Pierre-Laurent Verdon, Caterpillar’s Industry Manager for North America, characterized the compact track loaders’ fully suspended steel undercarriage system, the literal and figurative foundation of the new products’ many benefits.

Four independent torsion axles combined with steel track rollers and idlers, and an on-ground track length of nearly 1.77m, “provide the best balance of flotation and traction, which means the best ride,” says Verdon. The 458mm wide, 60-pitch rubber tracks, with embedded steel inserts at the sprocket points, are also

10% longer than comparable machines. The longer footprint results in lower ground pressure, longer track life, and reduced maintenance costs.

The new compact track loaders are also engineered to enhance efficiency and productivity. A two-speed hydrostatic drive system powered by the Cat® C3.4T diesel engine provides a maximum speed of 13.6 km/h. “The drive system electronically balances torque and speed delivered to the tracks,” says Caterpillar product marketing manager Todd Lynnes. “Operators can get the highest drawbar pull for pushing and digging, as well as better speed and a smoother ride when moving around large job sites.”

Lynnes noted that while the compact track loaders have much in common with their C-Series cousins, the rubber-tired 277C, 287C, and 297C multi-terrain loaders, the products’ distinct features are more complementary than duplicative. “The compact track and multi terrain loaders are similar in that both utilize the same technology,” he said. “But because they are designed for different applications, there are distinct differences in the parts.” For example, the compact track loader is designed to provide aggressive traction when working on rocky and sticky terrain and in other conditions that might prove more challenging to rubber wheel vehicles. And while models in both loader lines are comparably priced, “ the 2-speed drive system is built into the compact track loader price while the dual-feed suspension is built into the multiterrain loader,” adds Lynnes.

The compact track loaders are compatible with buckets, trenchers and augers and other work tools currently used with other C-Series equipment, using the standard quick-coupler or an optional hydraulically controlled coupler. For applications requiring added hydraulic horsepower, Caterpillar offers the optional High Flow XPS auxiliary-hydraulic system. “It depends on the combination of customers’ applications, underfoot conditions, operator techniques, and maintenance practices to determine which loader will provide the longest life and best value,” says Verdon.

www.cat.com

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PDi • Issue 3 - 2008 • Aug - Sept

Stone adds larger Mud Buggy model The US construction equipment manufacturer Stone Construction Equipment, Inc. has added a 0.59m3 (21ft3) the SB2100mortar buggy to the Stone Mud Buggy™ line. The additional Mud Buggy model has a load capacity of 1,451 kg with the versatility of a walk-behind or ride-on machine and is powered by a 9.7 kW Honda engine. It easily moves concrete, mortar, gravel, dirt and debris around the toughest job sites.

The new model has many of the same innovative and patented features of the 0.45m3 (16ft3) SB1600 buggy including: The one-piece, lift-away polyethylene engine cover requires no tools to remove and can be lifted away for full access to the engine compartment without dumping the tub.

The patented lockable, fold-up operator plat-

form is contoured, allowing increased manoeuvrability in confined areas.

It features an extra-large, patented platform-mounted service brake for added safety and a lower centre of gravity for added stability and extra traction over rough terrain.

A large 30 litre fuel tank provides longer run times while the 26 litre removable hydraulic tank allows for cooler running.

Handlebar-mounted levers control speed and direction. Left-hand side controls reverse and right-hand side controls forward.

A dumping lever and integrated foot pedal provide for precise, controlled dumping.

When the lever is released the tub will hold its position.

Optional, foam-filled dual tires provide optimum manoeuvrability on most any terrain.

The SB2100 Mud Buggy also holds the same rating as the SB1600 by the American Society of Mechanical Engineers Safety Standards for Personnel and Burden Carriers.

Both models meet or exceed the standards for lateral stability, longitudinal stability, parking and service brake effectiveness, making them the most stable, reliable, and productive concrete buggies on the market.

www.stone-equip.com

Issue 3 - 2008 • Aug - Sept •

PDi 51

Steep uphill recycling

Hartsteinwerk-chief Richard Cervinka with the new Rockster plant The well-established “Hartsteinwerk Kitzbühel” located in Tirol (a province of Austria) decided, together with a partner company, to purchase a crushing plant with an especially “test of proof” in the Stubachtal in Salzburg. Pipes for water and energy were about to be installed at the site and the crushing plant should prove itself to crush granite at a height of more than 2.400 meters.

First however a journey in a very impassable area with a rise of up to 66 percent had to be managed. Thanks to the ample capacity resources in combination with the low total weight of the Rockster plant not only the steep mountain road could be managed, but also the hard virgin stone could be crushed to the desired final grain size without any problems. Manufacturer and client were satisfied and immediately after the passed test phase the plant had been purchased by the two companies. At present the Rockster plant is working in the famous Diabas-quarry of the Hartsteinwerk Kitzbühel in order to crush this valuable and especially high quality volcanic rock.

The Hartsteinwerk Kitzbühel is working in the mining for more than a half century and today, under the management of the company owner “Richard Cervinka”, is one of the most modern and efficient quarry enterprises in Austria. Per year 550.000 tons of Diabas (a special type of high quality volcanic rock) are mined and processed.

The final product of a very high quality is used in the most different domains, as railway and street works up to construction industry, forestry and waste industry. Excellent characteristics such as hardness and robustness are the reasons why Diabas is popular world-wide. A reason more for the owner of the company, Richard Cervinka, to put special attention to quality and performance when buying a crushing plant. A further factor

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which had to be considered was, that the plant should not only work with virgin stone but also in recycling. For this reason Cervinka and his partner decided for a special alternative: the Rockster Duplex System.

This interchange system, developed and patented by Rockster, enables a simply exchange of the crusher unites with the same base machine and therefore a fast exchange from impact to jaw crusher is possible. The benefit for the client is clear. “With the Duplex System we are able to cover all of our big working field with only one machine – from hard stone to virgin stone up to recycling“, says Cervinka. „We do not have to choose between impact and jaw crusher, we have combined both possibilities with only one plant and this to a fair price. Therefore we are optimally equipped for the entire market. “ In the meantime the Duplex System has been enlarged with the Rockster screening box, which due to the modular concept can fast and easily be mounted on the main discharge belt of the plant. „At a minimal set up time the screening box not only enables us an exact definition of the final grain, but also gives us the possibility to produce two different grain sizes in only one working step“, Mr Cervinka says. Also with the total operating performance of the plant one is more than satisfied. „At the moment we are primarily working with the impact crusher“, means the chief of the Hartsteinwerk Kitzbühel. „Due to the multifaceted setting possibilities we have an optimal adaptation to the desired final product and also a superior output. With this combination the R900 for sure is unique in its class“.

www.rockster.at

Rockster plant on its way to the operation site passing a rise of up to 66 percent without problems.

PDi • Issue 3 - 2008 • Aug - Sept

Extec duo spearheads new generation recycling Extec track-mounted crushing and screening equipment is helping spearhead a new generation of high quality recycled aggregates in the UK. The C-10+ mobile crusher and E-7 mobile screen are being used by Sustainable Aggregates to produce SMR at a groundbreaking recycling facility near Gatwick Airport. Sustainable Aggregates, one of the companies pioneering the use of structural material for reinstatement, is using a pair of newly acquired Extec machines to meet growing

production demands at its new 1.2 hectare recycling facility at Copthorne in Sussex, close to Gatwick Airport. Having proved the viability of the product at its original site in Avonmouth, the new site and the acquisition of the two new Extec units signals a major expansion of Sustainable Aggregates’ operations.

Chalk and Cheese “At Avonmouth we proved that the SMR product could be produced and that there was a market for it,” says Sustainable Aggregates managing director Clive Holloway. “Up until then, we had acted as a supplier to 14 SMR dealerships before taking the plunge in February and producing the finished product ourselves.”

Holloway says that the take up of SMR is based almost entirely upon the quality and integrity of the finished product. “Comparing ordinary Type 1 and SMR is like comparing chalk and cheese,” adds Holloway. “Our customers have been astounded at the strength of the product.

To ensure that we maintain the quality of the finished product, we must process the waste to the highest possible specifications. For that, we have to have the right equipment.”

At the heart of the Copthorne operation is the Extec C-10+ mobile crusher and E-7 screen.

Fed by a Komatsu 210LC hydraulic excavator, the C10+ easily copes with the 10-14 daily loads of utility waste, reducing it to the required 50-60 mm grade. A proportion of the product from the crusher is stockpiled, as there is a ready market for conventional Type 1 as well as SMR. However the majority is fed into the E-7 screen by a JCB JS200JC excavator where the fines are removed and the crushed material sorted into products varying between 60 to 10 mm. The screened material is then loaded into an Achiever mixer and trommel unit where the binding agent is added to

produce the SMR product.

Increasing Production “Although there are only 4 people on this site, we are very productive as the two Extec machines make light work of the material to be processed.

They have more than proved their productivity,” adds Holloway. “At present, we are processing about 1,000 t/week of SMR, but we hope to produce 4,000 t/week in the near future. The Extec machines are more than capable of achieving those levels of throughput.” Holloway admits that he did his homework on crushers and screens before committing to Extec. “We knew from customers that the C-10+ was an excellent crusher, ideal for construction and demolition waste and everyone we spoke to liked the E-7 screen. But there are plenty of good machines on the market,” says Holloway. “What really swung it was Extec’s way of doing business without being pushy. They simply had the best all-round package.”

Looking to the Future With both the Copthorne and Avonmouth facilities established and demand on the rise at both locations, Holloway is looking ahead. He hopes to have a further four sites operational in the South East by the end of the year, and by 2010, there should be 24 sites working nationally. The idea behind these small local sites is to process locally, providing a product customised for individual clients, but without the vehicle movements required to move the product from large national depots.

“We already have top quality BSEN specifications and have applied for our CE mark. In my opinion, SMR products are the best way to reclaim and recover 100 % of Construction and demolition waste. This is compared with the 40% to 60% achieved by conventional methods,” Holloway concludes. “The savings are enormous for the customer and they are an obvious way of avoiding landfill taxes and reducing their carbon footprint.

Once the sites are running to speed they should produce a product that is cost neutral and the productivity of the two Extec machines will help achieve that.”

www.extec.eu

Unfinished hotel imploded A story that began more than 30 years ago in Italy finally came to an end in April with the demolition of the former Blue Residence hotel in via Tolstoj.

Contractor General Smontaggi was in charge of demolishing the building, where work to convert it into a hotel stopped in 1995. The building was made of a special type of concrete, had a Y-shaped plan, with a core of stairways, elevators, and lifts. The structure consisted of pillars and slabs distributed over 14 floors for a height of 45m.

Hundreds of asymmetric holes were drilled to position the 300kg of explosive gel triggered by 2,500m of detonating cord travelling at a speed of 7,000m/s. The drilling was preceded by the weakening of the structure through the cutting and removal of the concrete walls using diamond disks. The effects of the weakening and collapse of the building were then simulated using structural calculation software. The operation was planned on non-working days to limit the inconvenience for the town and to increase the safety standards required to demolish the unfinished 14 storey hotel.

The Operational Safety Plan required the area to be cleared and closed off over a 150m radius.

In order to absorb the scattering of crushed material, the floors were treated with micro-loads and fitted with safety nets and interposed synthetic mesh to catch the various concrete fragments generated by the explosion.

The demolition was carried out in close contact with the Aviation Authority because the building was located within the landing cone of Milan’s Linate airport. The exact moment to carry out the demolition was decided in real time, when Aviation Authority gave the signal. This was set for Sunday 6 April. The leader of the demolition received clearance to start the demolition process and 10 seconds later the 14 floors of the building were reduced to a pile of rubble 15m high.

Aedificat Synergy, a company specializing in urban recovery and renovation, will carry out the regeneration of the entire area. This new complex will function as a link between the residential and the commercial areas and urban shopping districts of San Giuliano Milan, and will also entail a number of changes in the local road network and green areas.

www.generalsmontaggi.

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PDi • Issue 3 - 2008 • Aug - Sept

FRD VS30FT crusher to Van Werven Recycling Van Werven Recycling bv from Oldebroek, Netherlands, has recently used its first FRD VS30FT secondary crusher as a replacement for an old crusher. Van Werven, specialising in recycling, switched to FRD because of FRD’s reputation of reliability and low cost of maintenance.

Van Werven, founded in 1945, concentrates on earth moving, recycling, biomass and transport. “We have many years’ experience in the recycling business and to work as efficiently as possible the process should not be interrupted and the supply of crushed stone has to continue,” says Van Werven representative Jan van de Wiel. “We switched to FRD demolition tools because of their reputation of reliability and value for money. We have worked with the FRD crusher for six months and as the VS30FT is much bigger than other crushers it can easily crush bigger pieces of stone or asphalt. We are the first in the Netherlands to work with a crusher this size and we are very content with it.”

www.frd.eu

CDC Demolition extends JCB Fleet The UK company CDC Demolition now has three JCB Robot skid steers among its 25 strong machinery fleet following the addition of two Series II Robot 160 machines. “We find skid steers are a general purpose utility machine on site. They are very good at clearing buildings out in terms of soft strip operations,” says CDC Demolition managing director David Clarke.

“We’ve had JCB Robots since they were first introduced in the 1990s. We’ve hired in all sorts of skid steers on our sites, but our men prefer the safety of the Robot.”

The company uses the skid steers for a wide

variety of tasks, from clearing up at the bottom of the glory hole to sitting on higher floors breaking out and carrying material. With a hydraulic breaker, pallet forks, a sweeper attachment, grapples, augers and a full range of buckets, CDC’s Robots can handle almost any task. “We use them for anything,” says David Clarke. “JCB seems to be able to adapt the machines more to demolition than its competitors, in terms of cab protection and cable cutters on the axles.

You can see that for the series II machines JCB has been in touch with demolition contractors to develop the machines.”

Don’t forget. Latest news on: www.PDWorld.com

THE NEW STANDARD FOR HANDHELD DIAMOND DRILLING & CUTTING WWW.COREPOWERTOOLS.COM

A room with a view on the Atlas Copco CC 3300 For years the grounds of the former HeleneAmalie coal fired power station facing the offices of Atlas Copco Construction Tools in Essen, Germany were left unexploited. Now the employees can look through their office windows and watch the progress made as the complex, built in 1938, is being demolished.

The demolition companies Heitkamp Umwelttechnik GmbH and Prangenberg & Zaum GmbH is using a CC 3300 hydraulic combi cutter to assist in tearing down this former power station.

Before the chimney and the boilers can be blown up, the mineral demolition material of the

buildings must be removed using the proper equipment. Only then can the machinery house boilers be removed by blasting and delivered to a recycling plant.

For the excavator operator Timo Böhmer the constant cutting force applied throughout the entire closing operation is what counts. “This is what makes the CC 3300 so suitable for this kind of demolition job,” he says.

The combi cutter was complimented by an Atlas Copco MultiGrapple MG 2700, which was used for grading and loading the demolition material.

www.atlascopco.com

FRD assist in school project In November 2007 the local authorities of Memmingen, Germany decided to build a new public school on the site of a former slaughterhouse at the Schlachthofstraße. The new school needs to be finished at the start of the new school year 2009/2010. If possible the Sebastian-LotzerRealschule and new sport grounds should also be finished at the same location.

To make way for the new building about 50,000m2 of the former slaughterhouse had to be stripped and demolished. Contractor Schotter Teufel from Strassberg was given the job to demolish the 30m tall building in less than 18 weeks.

Schotter Teufel used the 2.3t hydraulic breaker F35XP with impact energy of 6,883

Hydraulic breakers at Kamchatka One of the leading extraction companies in the Far East, ZAO KGD, ordered an Atlas Copco hydraulic breaker HB 5800 Dust. After more than 50 years as a military area, Kamchatka, the biggest peninsula in East Asia, is no longer restricted for visitors. But it is still an inhospitable but picturesque landscape, with temperatures below zero and severe storms most of the time. ZAO KGD depends on the continuous development of processes to produce around 3t of platinum annually. In order to improve quarrying methods, the company exchanges views with construction tools manufacturers to find superior solutions. So

56

Atlas Copco CTO suggested that working with a hydraulic breaker could be best suited for primary breaking at the very cold conditions. A tight agenda for the delivery to Kamchatka was organised to avoid the periods of snow during transport to site. By train, sea and a special offroad crawler the breaker reached its destination together with a team of CTO service engineers to ensure the equipment’s start-up.

“After several months of Atlas Copco breaker running we can see day by day that we made the right choice. Excellent operating performance and high breaking power of the HB 5800 Dust

PDi • Issue 3 - 2008 • Aug - Sept

clearly improve our productivity,” says ZAO KGD representative Leonid Polumiskov.

www.atlascopco.com

Joules on a 35t excavator. Part of the FRDXperience line the F 35XP breaker has a completely new shock absorption system to minimise transfer of vibration to the base machine. Also developed and patented is the maintenance free pneumatic anti-dust system that ensures no dust or rock particles can enter the hydraulic breaker’s stroke mechanism.

The F35XP breaker demolished the steel and concrete foundation. “We are very satisfied with FRD XP breaker’s results,” says project manager Daniel Schmid. “Thanks to the tremendous impact energy of this breaker we will certainly realize our project within the targeted 18 weeks.”

www.frd.eu

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Bathroom renovation

THE WORLD’S ONLY GUARANTEED DUST & ODOR CONTROL SYSTEM DUSTBOSSŽ KNOWS DEMOLITION!

With the help of the Brokk 50 and the breaker SB52 a normal sized bathroom took less than a day to demolish.

Since May 2005 the company Ă–regrund Bygg AB has been renovating 426 bathrooms with the help of the smallest Brokk. The houses were built in the 1950s when it was common to have small bathrooms from 1.5m2 to 3.5m2.

Four employees from Ă–regrund Bygg have been working on this renovation and for the first two years they used the Brokk 40, which was later replaced by the new Brokk 50. “There have been many advantages of using the Brokk robot,â€? says Ă–regrund Bygg team leader Johan Karlsson. “For example the machine’s powerful hitting forces, combined with its small size and low weight, have been most important for us. It is not a problem for the operator to drive the machine a full working day and get through doorways only 600mm wideâ€?.

A normal sized bathroom took less than a day to demolish with the help of the Brokk robot.

The environment has been a very important issue in this demolishing project. Some of the demolition rubble has been taken away with the help of a big suction trailer and the rest has been sorted into different containers to be recycled.

There is a lot of dust when bathroom tiles are removed so the apartments and the stairs have been vacuumed a few times each week to ensure a clean environment.

Renovating 426 bathrooms in under 3 years is a huge task. One can only wonder how many resources such a project would require if they did not have the small and effective Brokk to complete the task.

DALLAS CONTRACTING — Demolition in West Virginia, USA

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Issue 3 - 2008 • Aug - Sept •

PDi 57

Great market potential for ICS in Europe Ever since ICS was founded in the early 1990s the products

In the 1980s an engineer from the well known US chain saw manufacturer, Oregon Cutting Systems, based in Portland, was stimulated by his employer’s entrepreneurial programme. So he came up with the idea of bringing together chain technology with concrete cutting and received some financial aid from the company for research and development.

have been marketed and sold on the European market with great success. But still there is a lot more to do. “We see a great market potential in Europe and so far we have just hit the low hanging fruits in Europe,” says Joe Taccogna, ICS Blount Europe S.A. Operations Manager.

Text: Mikael Karlsson Photo: Mikael Karlsson and ICS Blount Joe Taccogna, ICS Blount Europe S.A. Operations Manager.

Focus on Europe in the early 1990s Very soon this pioneering concrete cutting technology proved to be very viable and promising. So the company ICS was formed, also in Portland, Oregon and the first viable handheld hydraulic concrete chain saw, the 801H, was launched in 1992. ICS had developed the patented diamond chain technology and the saw came from an OEM manufacturer in New York.

In 1994, the company launched the 823H hydraulic concrete chain saw and this was the first product to be completely designed by ICS engineers. In1997, ICS launched the world’s first gas powered concrete chain saw on the global market.

Now the company considers it is the world leader in diamond chain technology manufacturing and selling hydraulic and gas powered concrete saws, diamond chains and a full range of construction related products and specialty accessories.

ICS also established itself in Europe almost from the very beginning. “Like Oregon we are part of the American group Blount International Inc in Portland. Through their establishment in Belgium we could market our products in Europe and elsewhere,” says ICS Blount Europe S.A. operations manager Joe Taccogna. “It was with the gas powered saws that our sales really started to grow tremendously in 1998. The hydraulic business has certainly not gone away, but the sales focus is on the petrol saws since so many more customers can afford to buy them and the operating costs are much less. Just like in the US, demands for our concrete chain saws are very strong in Europe and elsewhere. I would say that so far we have just

ICS Blount European headoffice in Nivelles, Belgium.

hit the low hanging fruits when it comes to our market potential. Even on mature markets, like France and Italy, there is a long way to go before we have reached a saturation point.

One clear sign of this that every time I visit the World of Concrete we see several people that are still surprised when they see that we cut concrete with a chain saw.”

New products To continue as an innovation company with cutting edge technology, ICS has recently launched some new products on the market worldwide.

One is the 680GC concrete saw with an 80 cc, 5.7 hp petrol engine and several new features. “The new saw is replacing our versatile and large scale selling 613 model.

Like its predecessor, the 680 is available with 300mm or 35mm guide bars.

And we have improved the airflow design very much to keep the engine cooler to extend its life,” says Joe Taccogna.

Another new product is the diamond chain, ProFORCE. This is a patent pending chain design, which has 50% greater tensile strength to reduce breaking to give more durability and longer lasting. ICS is this year also launching a new hydraulic saw, the 880F4, with the new ProFORCE chain technology for hard core cutting applications that accepts 380mm 630mm guide bars.

www.icsbestway.com

58

PDi • Issue 3 - 2008 • Aug - Sept

One Two b e c o m e One

T: +44 (0)1283 212121 F: +44 (0)1283 217342 E-mail: info@extec.eu sales@fintec.com www.extec.eu www.fintec.com

Coleman in ki

In Scotland Coleman & Company is one of three preferred demolition contractors working for the Glasgow Housing Association on a 4 year partnership contract to undertake GHA’s highrise demolition programme. One recent project involved the demolition of two 23 storey tower blocks located in Pollokshaws, a district of Glasgow earmarked for regeneration by GHA.

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PDi • Issue 3 - 2008 • Aug - Sept

ilts

Due to the close proximity of roads, services and other buildings the project was technically very challenging. One block was 6 m from a major road junction and 5m from another building and was decided to partially dismantle it to give more room for the controlled collapse. This comprised removing the gable end and end bay of the building to increase the area to accommodate the debris spread.

Huge planning Working closely with the client, GHA, the local Housing Association, Newshaws, the Police and other bodies the blowdown was the culmination of months of preparation and planning.

The evacuation and cleanup operation involved 75 Coleman & Company employees to manage the evacuations, secure the exclusion zone and stabilise the debris pile. The standby plant for use following blowdown was transported to site.

Having been briefed in the week prior to blowdown and given details of arrangements for the day it was imperative that everyone knew what was expected on the day. At 04:30 on Sunday 20th July the operation started with the erection of the exclusion zone followed by the arrival of 54 Police Officers and road diversions. Evacuation started at 08:00 and was completed by 10:30 with the majority of residents being entertained and fed at the nearby Burgh Hall. Subsequent Police checks followed and the exclusion zone declared sterile at just after 12:00. The final explosives checks were made, countdowns ensued and blowdown followed at 12:30.

Good co-operation Then it was all hands to clear up prior to escorting residents back to their homes and lifting the exclusion zone. The blowdown was a complete success with good relationships formed particularly with the Police, to take into the next project.

www.coleman-co.com

Issue 3 - 2008 • Aug - Sept •

PDi 61

New primary impact crusher from Telsmith

were installed in SB’s plant and to enhance their operation shaft sensors have been placed on the magnets to detect if the magnet belts have slowed down, indicating either a blockage, on the large item line, or a snagging of the belt caused by a spear of metal.

The SB Waste plant is now running successfully and meets all the criteria laid down in the initial stages. “The Master Magnets equipment has more than lived up to expectations,” says Hewitt. “The electro-mag has been able to pull out rebar located within large concrete lumps and the fines magnet removes even odd shaped ferrous, reducing the jamming on the disc screen which follows. We would always recommend Master Magnets for their knowledge of the industry, professionalism and quality of equipment.”

www.mastermagnets.com

The US manufacturer Telsmith Inc. has launched its new QuarryTrax Model TI6060, a trackmounted primary impact crushing plant, which is designed for high-capacity production of up to 800t/h.

Featuring the heavy duty Telsmith Model PA6060 Primary Impact Crusher, the plant is engineered to maximize crushing hours and minimize maintenance. A key component of this primary impact crusher is its massive, solid type rotor set on 220mm bearings. With its heavier rotor, the impact crusher delivers higher inertia to optimize crushing 1m stone or concrete slabs. Easy to transport and ready to crush in minutes, the QuarryTrax TI6060 is ideal for processing a specification product in either concrete recycle or low-abrasion quarried stone applications.

The plant’s PA6060 impact crusher incorporates innovative technologies that prevent damage from any non-crushable materials, while reducing maintenance, providing greater uptime and lowering operating costs.

Its state-of-the-art hydraulic system provides fingertip control of apron adjustments. A PLC allows operation in an automatic mode that will automatically return the apron to preset spacing and track wear parts consumption.

A hydraulic tilting feed plate clears bridging and interchangeable and reversible monoblock aprons reduce maintenance costs and downtime. Easy access inspection doors and a hydraulic upper frame allow quick access to maintenance areas.

The new QuarryTrax TI6060 utilizes the Trax-Max control system, which monitors and controls plant operations including engine sys62 PDi • Issue 3 - 2008 • Aug -

tems, hydraulic systems, component settings, alarm conditions and troubleshooting. Handheld wireless remote manoeuvres the plant and provides crusher, feeder, engine and conveyor controls from a safe distance.

The plant is powered by a CAT-15, Tier III, 540 HP engine. Available options include a hydraulic hammer, 13.8m3 hopper extensions, a folding conveyor extension and scrap metal magnet.

www.telsmith.com

Master Magnets supplies overband magnets to SB Waste The UK based Master Magnets has recently supplied a permanent and an electro Overband Magnet to a major waste recycling company SB Waste Management & Recycling in Wolverhampton. SB Waste Management & Recycling is one of the largest independent skip hire and recycling companies and was established in 1984. The company has vast experience in the recycling industry collecting construction, demolition, skip and specialised waste.

Due to the dramatic growth within the recycling industry SB recognised the need to grow their capabilities and services to meet industry requirements and decided to build a new recycling plant.

Sept

SB employed Andrew Hewitt at WRPS to design and project manage the scheme, to allow SB to have an input on the choice of the equipment suppliers. Hewitt approached Master Magnets with a specification for two units. One was required to remove ferrous from the small fraction of +10-100mm, to operate over a 1.2m wide belt, with a product bed depth of less than 150mm. The second needed to remove the ferrous from the large fraction of +100mm, to operate over a 1.4m wide belt, with a product sizes of up to 400mm.

Master Magnets proposed their Type K permanent overband magnet and their oil cooled electro overband magnet. The magnets

New flexible drilling system from Husqvarna Abrasive discs for grinding and cutting steel Tyrolit has introduced two new abrasive products with improved performance characteristics for freehand grinding and cutting. One is the SILENTIO grinding wheel, which combines maximum stock removal rates with long life and noise reduction of more than 10 dB(A).

The resinoid-bonded, fibreglass-reinforced wheel is a Tyrolit 3-star premium product, introduced during the manufacturer’s recent rebranding exercise of its entire range. The wheel is ideal for working on steel and stainless steel to a maximum speed of 80m/s and has a novel damping feature for better run-out.

Four diameters are available in the range 115 to 230 mm.

Another new product for machining stainless steel at up to 80 m/s is the SUPER-THIN cut-off wheel, an innovation that the Austrian firm introduced back in 1992. By using specially coated abrasive grain, optimising the bond system and including newly developed fibreglass reinforcement, a dense matrix has been created that promotes safety in use and long service life.

Despite the wheel’s 1 mm to 2 mm thickness, depending on diameter of 115 mm to 230 mm, it is free cutting for aggressive machining. The thin profile has the effect of reducing dust, noise and machine load, leaving a clean, accurate cut with good surface finish. Rough sides avoid the risk of jamming and kickback during cutting.

Electric power cutter for dust free cutting indoors Husqvarna is launching its K 3000 Wet, an electric power cutter that allows cutting indoors easily and cost-effectively without dust. The K 3000 Wet is equipped with a wet cutting kit that regulates the flow of water to spray a concentrated stream onto the blade. The amount of water is sufficient to bind the dust without soaking it.

“We know that this is an eagerly awaited machine. The power cutters previously available on the market were quite expensive, so that many users modified their saws in order

64

to cut with water indoors. There is now an EU-approved solution to this problem,” says Husqvarna Construction Products power cutters product manager Håkan Aldén. The wet cutting kit contains a regulating valve that limits the amount of water to 0.4 litres/min. A hose is simply connected to the machine via a socket.

The wet cutting kit forms part of the Husqvarna Dust Extinguisher System.

PDi • Issue 3 - 2008 • Aug - Sept

www.husqvarnacp.com

Husqvarna Construction Products has launched the DMS 240 core drilling system. “It is a strong and rugged machine with high performance. With a strong and reliable two-speed motor and a twin gear carriage, it is a flexible system that is suited to a large number of drilling applications,” says Husqvarna Construction Products product manager Lars Gustafsson.

The DMS 240 is equipped with an overload protection that cuts the power off automatically in the case of overload, significantly increasing its operating life and performance. Like all Husqvarna products, the DMS 240 has a functional design and excellent ergonomic properties. The stand can be tilted and is equipped with a carrying handle, making it easy to move thanks to its transport wheels.

It can be rapidly fixed in place

when drilling with smaller diameters with the aid of an integrated vacuum plate.

The Husqvarna DMS 240 is designed for the rental market, professional drillers, electricians and plumbers and is being launched this autumn www.husqvarnacp.com

Technical data for the Husqvarna DMS 240 • Twin gear carriage • Electronic overload protection • Strong and reliable two-speed motor • Easy to transport • Drill diameter, max. 250 mm • Weight: 23.3 kg • Output: 2400 W

ICS announces FORCE4 initiative To fast track the rollout of their latest innovation the US company ICS, based in Portland, Oregon, is reducing the price and expanding the selection of its FORCE4™ diamond bars, chains and power heads. “FORCE4™ is the next logical step in diamond chain evolution,” says ICS President Jake VanderZanden. “The expansion of our manufacturing capacity has allowed us to both extend our line of FORCE4™ bars and chains, while at the same time reduce the price.”

At the heart of the push is a price reduction that brings FORCE4™ prices closer to ICS standard series chains and the addition of two bar lengths, 10 and 20 inch, (254mm and 508mm) three new chains, ProFORCE™ Premium L, Premium S and Abrasive and more 880F4 power head choices. “At 50% stronger, it’s really a no-brainer,” adds VanderZanden.

FORCE4™ is the latest development in dia-

mond chain from ICS, the inventors of the technology. Designed to be the strongest diamond chain on the market, the difference is visible. A much larger chassis provides 50% more tensile strength than standard diamond chain. Other features include deep engagement drive links for straighter cuts and a patent-pending pitch design of the diamond segment that creates the optimal blend of weight and strength.

Complementing ProFORCE™ chain is the new 880F4 hydraulic saw. The saw comes standard with the FORCE4™ guide bar and drive sprocket necessary to drive the larger chain. For those committed to their current ICS 853PRO or 633GC saw, conversion kits are available.

“FORCE4™ is the future of professional diamond chain,” says VanderZanden. “Our goal is to get to that future as quickly as possible.”

www.icsbestway.com

Best result for medium to heavy duty joint cutting applications When a floor cutter has to be in operation continuously the right choice of equipment is paramount.

German manufacturer Lissmac claims that the Lissmac FS 28 D and FS 33 D/T units are the right machines for these types of tough operations. Thanks to their powerful Deutz diesel engines with 31 and 61 HP, they easily cut joints up to 275 and 325 mm in depth in bitumen, concrete and asphalt.

Solid and balanced build for optimal work

The compact design and balanced chassis permit easy manoeuvring around the construction site. The large drive wheels provide excellent traction and the low centre of gravity ensures a precise and lowvibration saw cut. The folding saw blade hood also enables overlapping and cutting up against walls is also possible with the appropriate accessories.

Working and walk thanks to the hydrostatic drive The finely adjusted power is transferred with the aid of eight or ten drive belts. During cutting, the depth setting and the saw blade lifting or lowering can be smoothly regulated electro-hydraulically with the control lever. This floor cutter manages to achieve a forward speed of up to 3 km/h or 0-50 m/min.

The cutting speed going backwards can be infinitely adjusted up to 35 m/min.

Easy maintenance, good ergonomics and interesting equipment

Access for maintenance is simple and direct and the handles can be pushed in for transport.

The standard equipment of the floor cutters includes a parking brake, hour counter, neutral mode

and a flexible rear indicator. Optionally, the FS 28 D and FS 33 D/T can also be equipped with spotlights, warning flasher, water pump, waste water suction,

diesel particle filter, various types of protective saw hoods and transmission kits for adjustment.

www.lissmac.com

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Signature Date _________ 1. What is your company´s primary business activity?  Concrete cutting  General demolition  Demolition by explosives  Highrise demolition  Hazardous materials  Landfill  Re-use of demolition waste  Recycling services  General contractor  Floor gridning  Hydrodemolition  Insurance  Safety and project planning  Architect  Engineer  Distributor/sales representative  Other, specify ________________________ 2. What is your function?  Contractor  Architect  Engineer  Distributor/sales representative  Purchase  Estimator  Management  Operator  Other, specify ________________________ 3. Reason for inquiry?  Immediate need  Future job  General information 4. Reason for inquiry?  Immediate need  Future job  General information 5. Size of your company?  Less then 5 employees  6-20 employees  21-50 employees  51 or more employees 6. Do you recommend, specify, approve or perform concrete cutting services?  Recommend  Specify  Approve

 

Perform None

7. Do you recommend, specify, approve or perform demolition services?  Recommend  Specify  Approve  Perform  None 8. Do you recommend, specify, approve or perform recycling services?  Recommend  Specify  Approve  Perform  None 9. Do your company plan to buy any of the following in the next 12 months?

Concrete Cutting  Wire saw  Wall saw  Flat/Floor saw  Diamond chain saw  Core drill  Diamond blades/ bits or wires  Other_________________________ Demolition  Excavator/carrier for demolition  Long reach demolition boom  Compact equipment  Loading equipment  Hydraulic breaker  Concrete crusher  Pulveriser  Sorting grab  Steel shear  Other_________________________ Recycling  Mobile recycling equipment  Stationary recycling equipment  Screens  Screeders  Crushing buckets Other equipment  Floor grinding equipment  Dust extractor equipment  Wet vacuum equipment  Air cleaning equipment  Hydrodemolition equipment  Implosion appareal  Other__________________________

Issue 3 - 2008 • Aug - Sept •

PDi 65

2009 IACDS meeting in Dublin PDi has earlier informed that there were two options for the 2009 IACDS meeting, St Petersburg, Russia and Dublin, Ireland. Now it is decided that the meeting will be held in Dublin and hosts will be the Irish and UK Concrete Cutters Associations. Dates for the meeting are set to 5-7 June, 2009. More information will be published in the next issue of PDi.

Contributions to the 2009 Diamond Award There is still time to contribute to the 2009 Diamond Award organised by IACDS. Deadline for contributions is 31October, 2008. More information about the award can be found on www.iacds. org. The Diamond Award ceremony will be held 4 February, 2009 at World of Concrete 2009 in Las Vegas, USA.

Element Six sponsors 2009 Diamond at Work Conference Element Six will be the main sponsor for the 3rd Diamond at Work Conference planned to take place in Paris between 16-17th April 2009. Diamond at Work is the showcase where the latest developments in the industrial application of diamond and related materials are aired. The 2009 conference is planned to be strongly application-based while also covering specific research that is leading to a deeper understanding of the properties of new materials and significant breakthroughs in fabrication techniques.

The aim of the Diamond at Work says conference secretary, Martin Jennings, “is to provide a comprehensive overview of current and future applications for diamond and cubic boron nitride.” Broadly the 2009 conference proceedings will cover abrasive and non-abrasive application developments of diamond and cubic boron nitride material. This includes diamond and cubic boron nitride products derived from high pressure, high temperature synthesis, as well as diamond material produced by chemical vapour deposition synthesis. Abrasive applications will cover machining operations for components and materials in the oil and gas and stone and construction industries, for tool making and

grinding. Non-abrasive sessions will discuss the broad new applications for diamond, in particular, in optical, electronic, thermal, detectors and electrodes and in advanced technologies such as the emerging field of spintronics.

to landfill.”

Button believes that as NFDC members are increasingly required to work on structures erected in the late 1970s and early 1980s, the more likely they are to encounter composite materials that simply cannot be recycled.

www.diamondatwork.com

End of Life Directive

CSDA 2009 Convention to be Held in Cancun The US Concrete Sawing and Drilling Association has announced that its 37th annual convention will be held in Cancun, Mexico at the CasaMagna Marriott Cancun Resort on 3-8 March. Cutting professionals from around the world will experience an exciting program set in an exotic tropical paradise.

Highly sought out keynote speaker Robert Stevenson will open the programme with a presentation on Leadership in a Changing World.

Stevenson addresses more than 100 audiences each year. Stevenson has owned and sold companies internationally, held positions from salesman to CFO and managed a worldwide sales force. He balances humor, facts, inspiration, conviction and audience participation to create an unforgettable experience.

Technical and business sessions led by seasoned contractors and well-established manufacturers will include everything from dry diamond cutting reinforced concrete at a nuclear power plant to the care and maintenance of hi-cycle equipment, managing large international jobs and wire sawing.

Roundtable sessions will be held on the subjects of billing practices as well as risk management.

Social events and the CSDA Golf Tournament are also on the agenda.

The 2009 Convention will offer participants the opportunity to learn, network and relax. Afternoons have been left free so that attendees will have plenty of time to enjoy the beautiful Mayan coast of Cancun. Convention participants can plan their own outings or choose from the optional tours coordinated by CSDA, including deep sea fishing, snorkelling, exploring the Mayan Ruins of Tulum or riding the Selvatica zip line across jungle treetops.

In addition to the CasaMagna Marriott Cancun Resort, rooms have been blocked at an adjacent Marriott property, the JW Marriott Resort and Spa

Robert Stevensson.

Cancun. The hotels are connected by a covered walkway. Rooms at these two sister properties were blocked to give attendees a choice of hotels with different room rates. Both resorts are on exclusive beachfront property in the hotel zone of Cancun so it would be hard to beat the location of either property.

The CSDA Convention is attended by owners and managers of concrete sawing and drilling companies as well as representatives from manufacturers and distributors who support the industry with products and services. Information about the 2009 CSDA Convention Brochure is available online at www.csda.org. Convention brochures will be mailed in the Fall.

PDi • Issue 3 - 2008 • Aug - Sept

www.demolition-nfdc.com In Memoriam

www.csda.org

NFDC waste figures highlight recycling challenge The 2007 waste return figures from the UK National Federation of Demolition Contractors have just been issued; and they serve to highlight a growing challenge in the recycling of composite materials. The National Federation of Demolition Contractors, the voice of the UK demolition industry, has issued its latest waste return figures, which show that more than 90% of all site arisings were recycled or reused by the Federation’s 165+ corporate members. According to the figures, NFDC members generated 23,497,864 t of arisings during 2007. Of these, 1,035,833 t were classified as hazardous waste and were processed accordingly. A further 1,998,070 t was sent to landfill as an unusable waste.

Marked Increase The figures mark a reduction in the quantity of waste arisings produced, down approximately 2.7 M t on the previous year. More significantly, the figures show a marked increase in the quantities of hazardous materials processed,up from just under 800,000 t in 2006, and the level of materials sent to landfill, up from 1.3 M t in 2006.

“At the beginning of 2007, a number of materials were reclassified as hazardous waste, which explains the sharp increase in the hazardous waste figures,” says NFDC chief executive Howard Button. “Of far more concern, however, is the rise in the quantity of materials being sent

66

Button advocates an end of life building directive, similar to that imposed upon the automotive industry to ensure that cars and other motor vehicles are recyclable at the end of their working life, and that they contain the lowest possible levels of hazardous materials and heavy metals.

“More modern buildings and structures use more modern materials, many of them composites, which simply cannot be economically reused or recycled,” he asserts. “Architects and construction companies need to take responsibility and realise that, at some point in the future, a demolition contractor will be forced to try to deal with materials that are hazardous or which will simply wind up in a landfill site.”

William (Bill) Baker, the US National Demolition Association’s first executive director, has sadly died after suffering a stroke on 5th June 2008. He was the National Association of Demolition Contractors’ first employee and was widely regarded as being a major figure behind the Association’s development over the last 35 years.

According to a release from the NDA: “he began directing the Association’s programmes soon after its founding in the early 1970s and grew the national Association of Demolition Contractors into the industry leader that it is today. His contributions to the demolition industry and the Association are immeasureable.”

He is credited as being instrumental in the association becoming firmly established and then helping it to continue to grow as the key trade group representing the structural demolition and dismantling industry in North America.

Baker was a World War II U.S. Army veteran who was married for many years to the late Wanda Baker. He is survived by his daughter Wendy Richter and son Bill Baker as well as five grandchildren.

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