http://www.pdworld.com/document/PDi_5-2008

The IACDS Diamond Award p. 52 Volume 8 • No. 5 Dec 08 - Jan 09

Special Survey:

PDi 2009 Concrete Cutting Survey

pages: 12-18 Demolition:

News:

“The New Super Brokk!” pages: 34-37

First Nigerian Implosion page: 20

Shows:

World of Concrete 2009 Preview page: 30-32

Associations:

Diamond Award is Up for Grabs Reports:

Eagle eyes new ideas for floor preparation maintenance

pages: 52

Associations:

Credit Where Credit’s due

pages: 54-55

pages: 24-25 Reports:

Tools with Tradition pages: 26-28 Reports:

Best dealer per capita page: 48

“Mama Mia, 90 m Reach!”

pages: 38-40

John F Hunt checks into Gt Ormond Street Hospital pages: 46-47

Hilti diamond tools

Sparkling performance.

Hilti. Outperform. Outlast.

Manufactured exclusively from highgrade materials to ensure super-fast cutting or coring progress as well as extra-long life, Hilti diamond core bits, saw blades and wires are the professional’s choice.

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

102

CONTENTS PDi • issue no. 5 Dec 08 - Jan 09 • volume 8

REGULARS

Professional Demolition International Magazine Address: P.O. Box 786, SE-191 27 Sollentuna, SWEDEN Visitors address: Skillingevagen 14A., SE-192 71 Sollentuna, SWEDEN Phone:

+46 8 631 90 70

Telefax:

+46 8 585 700 47

E-mail:

info@pdworld.com

Website:

www.pdworld.com

ISSN Registration:

ISSN 1650-979X

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 Recycling: Heikki Harri, heikki.harri@pp1.inet.fi Editor North & South America Jim Parsons, jim.parsons@pdworld.com Editor Asia Pacific Silvana Wirepa, silvana@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 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 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 USA & Canada Contact PDi editorial office in Sweden.

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

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 5 - 2008 • Dec 08 - Jan 09

Editorial

6

Highs and lows in shorter sequences Sawing and drilling is international

8-9 43

10

Concrete Cutting

The big day is approaching

High cycle equipment from WEKA

Business Bobcat makes 750,000th Skid-Steer

Woodward appointed IDE Vice-President

Doosan Infracore America new President

A whole new Hitachi experience

Golden Diamond Cutter at BIG5-2008

CSDAA Convention and Trade Show 2009

The Tyrolit Cutting Pro Competition final

20

First Nigerian implosion

Demolition

FWA Fischer and Atlas Copco makes room for the new Fellnbach tower

FRD breaker for TVB in Bulgaria

58

Building Machinery 2009 with DemExpo to take place in Gothenburg in January, 2009

Special Feature 12-13 Okay, despite recession!

14 Major demolition project in Bulgaria

50

Wanty demolishhes old steel factory in Belgium

FRD crusher working for K&S

ICS adds diamond wire

Clearing the way for a luxury hotel

Dixie Diamond Core Bits Setting New Standards for Pros

D-Drill sets Gold Standard for CSCS certification

New burnishing machine introduced

by VIC International

Diamond Products Introduces New Core Cut CC82E1 Floor Grinders

Site Report 22-23 Conversion of a Regiment 46-47 John F Hunt checks into Gt Ormond Street hospital

Reports 24-25 Eagle eyes new ideas for

floor preparation maintenance

26-28 Tools with tradition 38-40 Mama Mia, 90 m!

48 Best dealer “per capita”

Shows 30-32 Viva Las Vegas

Recycling 42 Crushtec improves European favourite

Hydrodemolition

Noise problems eliminated by Aquajet

Diamond Award is up for grabs Credit where credit’s due CSDA release best practice document Signs of growth for US CSDA members

UK Association celebrates 25 years

US Demolition Association’s 36th Annual Convention

NEWS

News

34-37

The new Super Brokk

VIC International introduces a New 24-inc (650 mm) grinder-polisher Hilti DS-HS 80 V2 hand-held gas saw

Lifejackets, cranes and divers for unusual South African harbour contract

Diamond Products introduces economical SpeediCut Jr. Cut-off Saw

Conjet’s vital role in major tunnel and bridge repairs

Associations

16

Hilti DD 110-D diamond coring system with PCM core bits

Extec flies high at Pulkovo Airport

44 45

52 54 56

15

17 18

Husqvarna Soff-Cut method to minimize random cracking in concrete The new 633F4 ICS pairs the strength of FORCE4™ with the portability of a Gas Saw

VIC International’s problem solving shavemaster eats up concrete floor defects in no time

Diamond vantage introduces new technology, saws and blades

Diamond Products introduces new Core Cut Mini-Groover Walk Behind Machines

The hybrid floor maintenance has arrived

ICS names new director of European Operations

Highs and lows in shorter sequences

Words from O’Brien

many years. But now it is different. It is still in a strong position, but it is declining

Sawing and drilling is international

very fast. Just before this issue of PDi went to press, and for the first time in many

The sawing and drilling community may

the United Kingdom and the United States.

not represent a very large segment of the

These associations support the mission of

construction industry, but it is truly an interna-

IACDS to provide an international union and

tional family. This can be seen in many ways,

cooperation, and to promote professional

one of them being the number of entries that

development of professional sawing and

was received for the 2009 Diamond Award.

drilling contractors and their methods.

Dear Readers When I wrote this column one year ago I had my suspicions that there might be difficult times ahead. Maybe some of you had similar thoughts at the time. The US market, among others, had already entered recession, but most countries in Europe were still experiencing growth. But soon the recession spread to Europe, first affecting Spain and later on the United Kingdom. Now it has also spread to my part of the world, Sweden. In Sweden the construction industry has been incredibly strong for

years, some of our large construction companies cut back on personnel.

Recession is here, but sometimes I wonder how bad it really is, and how much people in general and the media in particular, perhaps like PDi, aggravate and exaggerate the situation? Nowadays we also have to deal with two types of economic structures that can affect our situation. On one hand we have the traditional economic structure that is based on demand and consumption. Here we have always been dealing with highs and lows. But we also have the financial structure that is

The Diamond Award is the International As-

The globalization of the sawing and

linked with investments. This is not always in direct relation with the real market

sociation of Concrete Drillers and Sawers

drilling industry can also be seen in the

or the real world, but can cause a lot of difficulties for companies and individuals.

(IACDS) internationally-recognized com-

membership makeup of the Concrete Saw-

It has not always been like this and certainly not to the extent it is today. That is

petition for sawing and drilling excellence

ing and Drilling Association (CSDA). While

why the highs and lows can come much faster then before. Previous recessions were

involving planning, complexity, innovation,

based in the United States, CSDA boasts

easier to predict than the present one. We almost knew when it was about time for a

degree of difficulty and quality.

membership from 28 different countries.

recession and there was also a much bigger delay before spreading around the world.

Entries for the 2009 Diamond Award

In fact, 20% of the total membership is

And some previous recessions were not always global. This recession occurred almost

have closed, with submissions arriving from

from outside of the United States. Growth

all corners of the globe. The competition for

in international membership continues to

this event included fascinating projects from

keep pace with growth in North American

contractors in Austria, Canada, Germany,

members. In addition, the 2009 CSDA

Egypt, Italy, Japan, Mexico, Russia, United

Convention will be held beyond the shores

stick our heads in the sand like an ostrich. We must move forward, maybe at a slower

Kingdom and the United States. A panel of

of the US in Cancun, Mexico to appeal to a

pace, but we need to continue to promote our activities, develop our skills, machines

international experts from the industry will

worldwide member base. Here, sawing and

and equipment.

overnight, as the world has become so much smaller due to better communication and with increased consumption from the more developed countries. The more we consume the faster we reach a peak and the fall is going to be just as heavy when consumption declines or ceases.

It is a new situation that we need to get used to. But to get used to it we shouldn’t

judge the entries based on criteria including

drilling contractors will have the opportunity

I spoke to a contractor recently who said: “It is going to be a bit tougher for a

project description; machines and tools;

to network and share their knowledge and

while, but the best thing I can do is to shut up and work harder. Why go on and on

complexity of planning and execution;

experiences with each other.

and speculate all the time. It is business as usual that counts and must face it head

innovative approaches that solved chal-

With all the technological advancements

on.” I thought that was refreshing to hear. So maybe if we all follow that contractor’s

lenges; quality specifications and photos.

now at our disposal, the world is becoming a

example, the crisis we are now experiencing will be fought and conquered a little

The top three winners will travel to Las

smaller place, and there is great opportunity

bit easier and faster.

Vegas, Nevada for the awards presentation

to communicate and build good working

ceremony at 10:00 AM on Wednesday,

relationships with fellow sawing and drilling

4 February, 2009, during the World of

contractors around the globe. Although

Concrete exhibition.

sawing and drilling may not represent

These are just some of my own views on the situation we are currently experiencing all over the world. One thing I am sure about though is that this issue of PDi conveys a lot of optimism and I believe that is good hope for the future.

IACDS itself was created as an inter-

the largest segment of the construction

portunity to thank all our readers and

national trade association of sawing and

industry, we must never underestimate our

advertisers for your support during 2008.

drilling associations from the concrete

influence, and we will continue to aid the

I hope you all will have a happy holiday

construction and renovation industry. This

growth of the industry as a whole through

season and a prosperous 2009.

umbrella organization of sawing and drilling

our successes.

I also would like to take this op-

6

PDi • Issue 5 - 2008 • Dec 08 - Jan 09

Jan Hermansson Editor-in-Chief

associations formed in 1995, comprising

jan.hermansson@pdworld.com

many, Japan, Spain, Sweden, Switzerland,

of associations from Australia, Austria, Ger-

Best regards Patrick O’Brien President IACDS

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The Big Day is The seventh and last national Tyrolit Cutting Pro Competition took place in Maisach, Germany on 3-4 October.

Many competitors and supporters from Austria and Germany attended to take part in the first day qualification. After this we are just waiting for the Grand Finale in January.

Text: Mikael Karlsson Photo: Mikael Karlsson & Tyrolit

On the second day Wilhelm Schikowski, from the German company Heinz Winkler, showed his professional skills by scoring 58 points and winning the contest from the 20 participants that had qualified in the three disciplines of wall sawing, core drilling and hand sawing.

In second place was his German colleague Frank Sendner scoring 56 points and in third position was the Austrian professional, Markus Netztaler with 53 points. No one managed to break new records this time, but it was still a very even and thrilling contest with lots of professional skill and the tent full of enthusiastic supporters.

Altogether about 220 professionals from the concrete drilling and sawing industry attended the event as enthusiastic spectators, and they also enjoyed the company trade fair, which was held in parallel. They were able to see a wide range of TYROLIT machines and tools in operation. The day was rounded off in grand style on the Saturday evening with the TYROLIT Oktoberfest in Fürstenfeldbruck, where visitors, participants and winners celebrated the success of the event.

The three winners from the competition in Germany will participate in the final European Championship that takes place in Austria in January 2009.

TYROLIT Cutting Pro European Championship 22 January 2009 is the day to look forward to, hosted by Charlotte Engelhardt and in connection with the TYROLIT Open House fair 16 national champions from 10 countries will compete against each other in the Grand Final of the TYROLIT Cutting Pro Competition Tour 2008 in Innsbruck.

The record times so far in the individual disciplines are impressive: No record time was scored in Germany, but it was still a very even and thrilling competition.

8

PDi • Issue 5 - 2008 • Dec 08 - Jan 09

s Approaching The Grand Finale in 22nd of January, 2009 will be hosted by Charlotte Engelhardt a famous TV presenter from Germany.

TYROLIT Schleifmittelwerke Swarovski KG and the Construction Division The three winners in Germany from left: Markus Netztaler, company Schaidraiter, Austria; Wilhelm Schikowski, Heinz Winkler, Germany and Frank Sendner, Mike Sendner, Germany.

•

• •

Wall sawing: Fabrice Vanderbecque (Diam CSD), France: 02:17.69 minutes Core drilling: Sergio Tedde (Editaglio), Switzerland: 02:35.00 minutes Hand sawing: Kim Guldbaek (Nordjysk Diamantboring og Skaer), Denmark: 00:24.32 minutes

As in the competition up to now, the European Championship too will be won by the fastest competitor in wall sawing, core drilling and hand sawing. PDi will of course be covering the European Final and the results will be published in PDi issue 1-2009.

Betting on the European Champion The website www.cuttingprocompetition.com provides all the details of the European Championship and about the competitors who have qualified. Visitors to the website can also bet on who will be the winner and by doing so directly influence the starting order for the European Championship.

With 80,000 products TYROLIT is one of the biggest manufacturers of bonded grinding, cutting, drilling and dressing tools as well as machinery for the construction industry and belongs to the Swarovski Group. The family firm employs more than 4,600 people at 25 production sites around the world. In 2007 TYROLIT generated sales revenue of 538 million euros. Innovative strength is one of the key factors behind the company’s success.

In the construction sector concrete and similar materials are processed, cut or dismantled. Cutting and drilling operations, asphalt and concrete cutting firms in civil engineering, brick, refractory material and prestressed concrete producers and the specialist building trade trust the machinery and tool system solutions provided by TYROLIT. The names TYROLIT and TYROLIT-Hydrostress stand for quality and innovation in the construction sphere. The great expertise of TYROLIT extends from basic research and product development to state-of-the-art diamond tools. Machines and tools are developed as systems. Virtually every major project – whether tunnel expansion, offshore work or demolition of nuclear power plants, bridges and waterways – is carried out with the aid of TYROLIT system solutions and the specialist expertise of TYROLIT applications engineers.

www.tyrolit.com PDi 9

Issue 5 - 2008 • Dec 08 - Jan 09 •

Doosan Infracore America new President Doosan Infracore America has promoted Michael P. Stanley to president and chief operating officer of Doosan Infracore America’s Construction Equipment Division.

Stanley is responsible for the Construction Equipment Division including parts support, and will report to HS Lee, president of Doosan Infracore America, and the head of the Construction Equipment Business Group.

Bobcat makes 750,000th Skid-Steer Bobcat, in its golden anniversary year, has achieved a major milestone by manufacturing, at the plant in Gwinner, North Dakota, USA, the company’s 750,000th skid-steer loader 50 years after the Melroe and Keller brothers came together to introduce the Melroe self-propelled loader, the forerunner to the Bobcat skid-steer loader.

“It was only in February 2001, that Bobcat produced the company‘s 500,000th skid-steer loader, and it has taken just seven years more for Bobcat to produce another 250,000 skidsteer loaders,” says Bobcat EMEA president Neil Woodfin. “This is a testament to the popularity and demand for such a highly productive quality machine.”

www.bobcat.com

Woodward appointed IDE Vice-President Life-long demolition man John Woodward, managing director of UK based C&D Consultancy, has been elected vice-president of the Institute of Demolition Engineers. Woodward has been a member of the IDE for many years, most recently acting as the Institute’s events chairman.

“I am honoured to have been elected as IDE vice president and I look forward to working with the president, Terry Quarmby, to really drive the institute forwards,” Woodward says. “We have huge plans for the IDE, many of which I explained to the delegates at the European Demolition Association event in Turkey. With the backing of the IDE council and its members, we can now bring those plans to fruition.”

A whole new Hitachi experience Hitachi Construction Machinery (Europe) NV (HCME) has announced a new customer-dedicated website at www.myHITACHIexperience. com <http://www.myhitachiexperience.com/> .

The site is part of the latest marketing campaign launched by HCME and is supported by print advertising across international trade media. The website has been created to showcase customers using machines in a dozen countries across Europe, the Middle East and Africa. An easy to use online resource, it has more than 50 detailed interviews with operators and owners on a wide range of models from mini to large excavators, to wheel loaders, dump trucks and special application machines. Users can also search for machines working in a specific country or industry sector, such as quarrying, mining, forestry or road construction. HCME Manager Corporate Communication Raymond Hendriks says, “Hitachi construction machinery is developed with our customers‚ requirements firmly in mind. We know that they are happy with our products, so we decided to use their personal experiences as the basis of our latest campaign. “With case studies, photography and movies, we have brought our customers‚ comments on Hitachi construction machinery to life. My HITACHI Experience is an effective way of communicating the benefits of our machines, including better performance, low running costs, and ultimate operator comfort and safety. “The site has already had an enthusiastic response from our

The Tyrolit Cutting Pro Competition Final and Open Fair 2009

dealers and customers across Europe and we are convinced it will become one of the most popular construction sites on the internet.

www.myHITACHIexperience. com

Golden Diamond Cutter at BIG5-2008 The BIG5 SHOW in Dubai is the largest exhibition for the construction industry in the Middle East and attracts many visitors from Europe and Asia.

Adamas successfully participated in the 2007 BIG5 exhibition and will again show its latest developments in diamond drilling and cutting equipment on the BIG 5 – 2008, which was held on 23-27 November.

Prominent on the Adamas booth in the Holland Pavilion will be a gold plated electric floor saw with a 1.2m diameter diamond

tipped saw blade.

With this machine the Arab perception of gold and jewels as important and valuable assets in everyday day life is combined with the European technology of high production concrete cutting.

www.adamas.nl

CSDAA Convention and Trade Show 2009 The Australian Concrete Sawing & Drilling Association CSDAA will hold their 2009 Convention & Trade Show 19-20 March, 2009.

The location is the Hilton on the Park Melbourne. The tradeshow and demonstration days will be held at the Melbourne Showground and the gala dinner will be held at the Hilton on the Park Melbourne.

John Woodman with his wife Jill.

10

PDi • Issue 5 - 2008 • Dec 08 - Jan 09

www.csdaa.com.au

The TYROLIT Open House Fair 2009 is not far off. In conjunction with the fair the final in the Tyrolit Cutting Pro Competition will take place.

The Open House Fair 2009 will be held under the motto “Professional Cutting Solutions” and will focus on the special applications sector. Particular attention will be given to machines and tools originally developed for special construction work and their relevance for day-to-day business.

The fair will feature a comprehensive product exhibition, demonstrations from the Construction Professional, Construction Related Trade and Hire & Rental sectors as well as related specialist lectures.

The highlight of the fair, the European Championship of the TYROLIT Cutting Pro Competition, promises to be a product presentation of the special kind: the national champions from ten countries will compete against each other in the disciplines of wall sawing, core drilling and hand sawing.

The performances of the 16 top professionals will be well worth seeing and will make for an exciting evening.

The TYROLIT Open House Fair will take place in the impressive ambience of the Salzlager Hall. The exhibition, lounge, Cutting Pro Corner, catering and entertainment area will be accommodated in the large Column Hall.

The main area of the exhibition, covering the subject of special applications, will be in the foyer. This will mainly reflect special construction projects from the offshore and nuclear power sectors as well as other major projects. Particular attention will be given to machines and tools originally developed for special construction work and their relevance for day-to-day business.

The International Tyrolit Cutting Pro Competition will be held in hall 1 of the Innsbruck Exhibition Centre which provides adequate space.

www.tyrolit.com

The Melbourne Showground where the CSDAA trade show will take place in March, 2009.

special survey

â&#x20AC;&#x153; Okay, despit It has been quite a mixed year with the launch of many new products tempered by a dramatic drop in the market in some areas and with a future hard to predict.

In the last issue of PDi this year we reflect on the events of concrete sawing and drilling industry in 2008.

12

The modern concrete sawing and drilling industry has a history going back about 50 years. At the end of the 1950s mechanized equipment and diamond tools slowly started being used in the building and construction industry. But it took until the end of the 1960s and beginning of 1970s before concrete cutters gained prominence with the first national Concrete Sawers and Drillers Association founded in the US in 1972.

Eleven professional associations in IACDS Now there are about 20 associations in the world dealing with concrete sawing and drilling. Eleven of these are members in the international umbrella association the International Association of Sawers & Drillers. The active members are Australia, Austria, Germany, Japan, Spain, Sweden, Switzerland, United Kingdom and the United States. The non-active members are Poland and Russia, but there are also concrete cutting associations in other countries, such as Denmark, France, Italy, Norway, New Zealand and The Netherlands. Only time will tell if they become IACDS members.

For the best of the industry Today this industry has reached a size that demands an international organisation like IACDS, which was founded in 1995 by the national associations in Austria, France, Germany, Switzerland, United Kingdom and USA. There are constantly important issues to work out and analyze, such as tolerance rules, safety and training, working conditions and environmental issues, with everything done in the best interests of the industry.

IACDS also provides statistics on the size of the industry, which is much appreciated by manufacturers of diamond tools and concrete cutting machinery. Since 2000 IACDS has been organising the Diamond Award, which was initiated by Horst Wapler from the German association (See feature on the 2009 Diamond Award on page 52). This award and IACDS have a very important impact on the global concrete sawing and drilling industry and in these times of recession we need tools to communicate with each other to learn and improve. IACDS is that tool and the Diamond Award is a perfect way to promote extraordinary achievements.

PDi â&#x20AC;˘ Issue 5 - 2008 â&#x20AC;˘ Dec 08 - Jan 09

A US$10 Billion value According to IACDS there were about 10,345 professional concrete sawing and drilling contractors operating in the world in 2008 and about 1,683 of these are members of a concrete sawing and drilling association. The six biggest associations are Germany with 491 members, followed by the US with 372 members, Australia with 220 members, Sweden with 102 members, Switzerland with 86 members and UK with 84.

The estimated global value of the industry in 2008 is approximately US$ 10.2 Billion (EUR 8.6 Billion), which is an annual increase of about 0.5% per year since 2006.

The average annual turnover for each contractor is around US$528,000 (EUR 417 389). US contractors have an average turnover of US$ 2,000,000 Japanese US$ 1,500,000 and Koreans around US$ 1,000,000.

IACDS members provided the estimated figures in May 2008 and some changes must be expected for the whole year.

As Europe has experienced a strong economy, in particular the building and construction industry, during the past three years, it is surprising that the concrete cutting industry has not reported a bigger increase to follow that of the general construction industry.

Positive increased movement For machinery and diamond tools in 2008 there was a change half way through the year. It started well, particularly in Europe and Asia Pacific region and there was a lot of optimism during the US shows World of Concrete and Conexpo-Con/Agg. In Europe the construction industry is standing up well with projects going ahead and starting in the near future. However, there are now indications that some projects planned for the future are being postponed until the economy recovers.

PDi has noticed strong interest from American producers of diamond tools and machinery. There has been a decline in the US market, and is a reason why US manufacturers are now focusing on more distant markets in Europe and other parts of the world to increase their sales. But they have also improved the editorial promotion of their products, which is very much welcomed. The US market has been big enough in itself, but US producers have a lot to gain from investing more in their exports, and the increased presence in the international media is a sign of that.

Novelties for concrete cutting The number of new products released this year is much smaller than in 2007 and the reason for that was Bauma. But normally the year after Bauma is the one when new products are thoroughly tested. Then perhaps another year to correct and make improvements and launch upgraded versions for the following Bauma, as the show does have a big impact on the European markets.

Although the markets have declined, there has been

te recession” improvements and new products released during 2008. In the diamond tool category US manufacturer ICS Blount has done exactly that and focused more on the European market by setting up a European sales company in Belgium. At the beginning of the year they also released the new diamond tool chain FORCE4. The manufacturer has also released a couple of new machines during the year.

Husqvarna Construction Products has also released new products during the year, including the new series Diagrip.

Husqvarna has also released a number of new hand held machines, both electric and petrol powered and new core drill systems. The company’s main news this year is its entry into the high frequency machinery sector with its HF wall saw WS 440 HF. This was followed by the recent launch of a new remotely controlled demolition robot that will be shown at the Swedish show Building Machinery/DemExpo in January and also the World of Concrete in February.

Tyrolit released a series of new diamond tools and machinery during 2007, but this year has been dominated by the Tyrolit Cutting Pro Competition that started at the beginning of 2008 with a number of national competitions, which will end in a grand finale in January 2009 (See details of the competition on page x). PDi understands a new round of the international competition will start in 2009.

Hilti has showed its strength in promoting their various professional core-drilling systems shortening set-up time and drilling. This year has also seen the release of a couple more hand held machines for grinding and cutting as well as drilling. A new type of core drill with improved performance has been released (See page 15).

The German diamond tool producer Atlas Diamant has released a couple of new blade qualities and a new type of core drill. US manufacturer Multiquip has released several new drill stands for both fixed and handheld operations.

The market has also seen the launch of a new high frequency wire saw, the Pentruder 3P8 from Tractive.

The manufacturer EDT Eurodima from Austria has received a lot of credit for the high frequency wall saw braxx sb320 tornado. The company also recently released their new diamond series Duramant with a special bond and mix of diamonds that increase efficiency and tool life.

Swiss manufacturer Demco celebrated their 20th anniversary recently and showed several new products to be released, including a couple of drill rig systems, a new wall saw, wire saw and a circular saw, all powered with high frequency technology.

Adamas from the Netherlands has not released so many new products during the year, but has taken several important steps to widening their market. The company is building up its presence in the Asia Pacific region as well as in the Middle East. (More details on page 8).

Saint Gobain, a large company with many different brands, has recently been promoting itself on the professional concrete cutting arena with several new releases and

a tougher marketing strategy The Korean manufacturer “only wire” has decided to focus more on the global market in the coming year and can expect a lot more from the company next year.

Floor grinding still a hot segment Another sector in close conjunction with concrete sawing and drilling operations is professional concrete floor grinding and polishing. The number of companies in this area is increasing and lead by the largest HTC Sweden AB. HTC has focused a lot on developing their system for grinding wooden floors and has also introduced new diamond tool qualities as well as accessories and devices improving the operation of their machines.

Their focus is very strong on the rental markets around the world. German manufacturer of floor grinding solutions, Schwamborn has released their new floor grinder DSM 650. The US manufacturer Innovatech has teamed up with the manufacturer Eagle Solutions as well as the European manufacturer Contec. US manufacturer Blastrac, owner of Diamatic, has released several new grinders as well as dust extractors.

The manufacturer Scanmaskin released during last year their first remotely controlled grinder developed for large areas. The year has seen the release of one singe disc grinder and a grinder for operating in confined spaces.

Complementary to grinding equipment are suppliers of dust extraction and air cleaners.

Dustcontrol has released a new series of wet vacs containing three models as well as a bigger version of their popular air cleaner Aircube. Pullman Ermator has released four new types of dust extractors and one new wet vac system. UK manufacturer SPE International has released their new 3-phase dust extractor 316.

HTC Sweden has decided to develop its own type of dust extractors by launching two new models tailor made for the HTC floor grinder.

These are just some examples of the events in 2008, which was quite a good year despite the start of the recession. But the question everybody is asking now is what is going to happen in 2009?

Issue 5 - 2008 • Dec 08 - Jan 09 •

PDi 13

special survey

Major demolition project in Bulgaria Tyrolit machines have been working on a major concrete demolition project in Belene, Bulgaria. Over a period of 10 months a nuclear power plant, which was never completed had to be demolished.

The cutting and demolition work involved 10,000 m2 of concrete in the form of a solid 4-storey concrete building with a height of 16 m above ground and 7 m below ground. The building walls were reinforced and on average about 800mm thick. The internal walls, ceilings and floors were additionally covered with 15 mm thick steel plates. The top ceiling and foundation slab each had a thickness of 3 m and a total surface area of over 4,000 m2.

Tyrolit tendered successfully for the complete order and supplied all the machines and tools needed for the demolition work as well as the know-how of the Tyrolit applications engineers. These included SB wire saws, PPH40RR, PPH25RR, quarry wire saws, drilling systems and diamond wire.

The project started in October with men, machines and tools working round the clock in a continuous operation.

Diamond Products announces the addition of its new portable Core Cut brand CC82E1 Floor Grinders to its product line. The CC82E1 is portable, lightweight diamond floor grinder for use on multiple concrete surface prep applications. It works by quickly leveling and smoothing bumps and uneven concrete and can remove paint, epoxy and rough spots. The unit features a unique adjustable rear axle with low profile disc guard that enables it to reach under obstructions and spots where other machines cannot get to. It comes in two models, one with a 10inch (250 mm) diamond disc capacity (bolt on style) and another with an 8-inch (200 mm) capacity. Both machines are powered by a 2 hp, 1 PH Baldor 115V, 16 amp motor. Each unit weighs under 135 lbs (61 kg).

www.tyrolit.com

ICS, the maker of concrete chain saw adds diamond wire ICS has added a new diamond wire product line.

This 10.5 mm high diamond wire is aimed at the sawing and drilling market and is meant to augment their line of professional concrete chain saws and accessories. ICS has applied the same professional design and quality standards to its new wire line.

ICS diamond wire is available through the ICS professional direct sales channel. Headquartered in Portland, Oregon, ICS is a division of Blount Inc., a diversified manufacturing company with global distribution. The company also has a European subsidiary and a number of distributors and agents around the world.

Source: Concrete Openings Magazine

www.icsbestway.com

Dixie Diamond Core Bits Setting New Standards for Pros Dixie Diamond introduces a new Professional Core Bit Catalog with more than 300 American-made items. Included in this new catalog is the Super-DQ core bits shown below that feature extended length, a 0.300-inch (about 8 mm) usable diamond height

14

Diamond Products Introduces New Core Cut CC82E1 Floor Grinders

Source: Concrete OpenMagazine

and a unique formation that make them essential for every drilling professional.

Source: Concrete Openings Magazine

www.dixiediamond.com

D-Drill sets Gold Standard for CSCS certification The UK based diamond drilling, sawing and demolition specialist, D-Drill has been awarded Gold Construction Skills Certification Scheme Certification. This gives its customers the reassurance that all operatives have completed competence and health and safety training to provide them with a safe, efficient service. D-Drill is known for its 40 years of service in providing diamond drilling and sawing and robotic demolition to the construction industry.

“There is both an art and a science to drilling and sawing work,” says D-Drill’ managing director

PDi • Issue 5 - 2008 • Dec 08 - Jan 09

ings

Julie White. “No two applications are the same and drillers and sawers have to be flexible enough to deal with hugely differing applications and materials. Our training meets strict CSCS standards and we are very pleased to have been awarded a Gold Standard Certificate of Commitment.

Training and operator safety is of paramount importance to us and our customers.”

The VIC 20-inch (508 mm) burnisher feaThe CSCS was set tures a two-speed (1,000/2,000 rpms), 1.5 hp, up to help the construc115V/60Hz motor, a 50-foot tion industry to improve (15 m) 14-3 ST fixed power quality and reduce cord and a multi-V belt. The 20accidents. Contracinch (508 mm)VIC tors, public sector burnishing machine and private sector features a dual trigclients increasingly ger, negative-pressure demand CSCS D-Drill giv switch that allows an operaes G cards as proof of assurance to old Certifica tion tor to run the machine with its custo mers occupational comeither hand. The one-piece petence. welded, heavy-gauge steel

New burnishing machine introduced

by VIC International VIC International introduces a new 20-inch (508 mm) high-performance burnishing machine designed exclusively for polishing and maintaining floor sheen.

handle provides the user with excellent handling stability.

It offers steel transmission gears for long life with outstanding durability.

Source: Concrete Openings Magazine

SAM 2008-113 AP SHOXX G13 GB 85x250

5/11/08

14:54

Hilti DD 110-D diamond coring system with PCM core bits For maximum efficiency with hand-held power tools and the dry coring technique, factors such as motor power, working comfort and the core bit type are decisive. The DD 110-D diamond coring system and new PCM dry-cutting core bits from Hilti deliver all of this and much more for top coring performance and easy, comfortable handling.

New technology for higher efficiency Dry coring in masonry is a job that demands muscle, especially when a large number of through-holes or sockets have to be drilled with hand-held tools. Tools and accessories that make the job easier and more efficient are therefore very welcome. Hilti has developed the DD 110-D system and the PCM dry-cutting core bits with exactly these points in mind and with a view to ensuring high performance even under conditions of heavy, continuous use.

Featuring a casing and grip incorporating the latest ergonomic design principles, compact dimensions and with a light weight of only 5.3 kg, this tool certainly provides the working comfort demanded by specialists in the electrical, plumbing, heating and ventilation installation trades. Moreover, its specially designed dust removal system, perfectly matched to the tool and core bits, makes the coring operation virtually dustless and thus greatly reduces possible health hazards for the user.

POWER INSIDE

Thanks to the ergonomic design of its grip and casing, the Hilti DD 110-D guarantees top working comfort. times higher than with core bits incorporating conventional diamond segment technology. This is made possible, above all, by the significantly greater depth of penetration achieved by the PCD cutters, resulting in a considerably higher rate of material removal per revolution much higher than with conventional segment-type core bits. An additional feature of the latest PCM core bits is their resistance-welded PCD cutters (previously brazed), resulting in far greater durability.

A further highlight of the system is the hole-starting aid that allows holes to be positioned with spot-on accuracy without need for pre-drilling, thereby saving time and taking socket cutting productivity to new heights.

Great versatility The tremendously versatile DD 110-D makes quick work of socket cutting for electrical fittings, drilling through-holes for cables and cable trays or pipes and ducts in plumbing, heating and ventilation installations.

It’s also an ideal companion for other tradesmen such as chimney and stove installation specialists. Capable of drilling through aerated concrete, sand-lime block, hollow and solid brick or clinker with core bits in the 37 to 162 mm diameter range, this team consisting of high-performance hand-held power tool and PCM core bits sets the new benchmark.

Quick and efficient socket cutting in hollow brick – a virtually dustless operation when fitted with the dust removal system.

Innovative system What sets the DD 110-D apart from other diamond coring tools is the fact that the tool and the core bits have been developed together to form a perfectly matched system. Accordingly, thanks to its powerful 1600 watt motor and two-speed gearing, this tool always provides the right speed and torque for the range of core bits available.

Especially when used in conjunction with the new core bits based on the further refined PCD (polycrystalline diamond) technology, this tool achieves a rate of coring progress up to five

Resistance-welded PCD cutters not only increase coring performance, they also ensure high durability.

Discover this new product on The Hilti PCM core bits feature a hole-starting aid for high coring performance and maximum productivity.

www.shoxxtechnology.com Issue 5 - 2008 • Dec 08 - Jan 09 •

PDi 15

Page

special survey VIC International Introduces a New 24inc (610 mm) grinderpolisher A new 24-inch (610 mm) prep and polishing machine, offering what is considered the greatest amount of down-head pressure available in the mid-range concrete polishing category, is being introduced by VIC International. The new heavy-duty grinder offers concrete prep and polish contractors an ideal entry level machine for entering into the concrete polishing business based on path size, machine weight and power. One of the features of the VIC grinder is how close to the wall the machine can grind and polish.

This new model combines strategic head plate and tool placements together with precise shroud design for minimizing distances to the wall. This results in substantial savings in time for the contractor and savings in cost for the customer. The VIC grinder features a 230 V, three-phase 10 hp and variablespeed motor with reverse. The positive drive system features a cog belt, a serpentine belt for drum rotation and tensioning and a belt tensioner. The machine’s head design offers puck heads, which are extremely durable, inexpensive and easy to service. The head plates have multiple mounting holes for the tunable puck heads. Maintenance and machine rebuilding is simple requiring no more than common hand tools.

Machine manuals offer easy-to-use step-by-step rebuild instructions including electrical troubleshooting procedures.

Lifejackets, Cranes and Divers for unusual South African harbour contract South Africa’s Durban based company, Holmes Cut and Seal, completed a somewhat different concrete cutting job when it undertook a contract to remove a jetty and a wharf in the Port of Durban earlier this year.

It decided to use diamond sawing for sections of the Tug Jetty to enable it to relocate the debris rather than have it fall into the water, which would have meant removal at a later stage to effect the widening of the entrance to Africa’s busiest port situated on the east coast of the continent.

The project required unusual coordination, implement adaptation and other elements to execute. “We had to cut large sections of the jetty, which each weighed 720 t using a Bellini 50W quarry wire saw. Each cut was 120 m2 of wire sawing,” says chief executive officer Andy Holmes. “Divers then had to attach a lifting frame and air lifting bags to float the blocks to the surface for towing to the disposal area.

Attaching a lifting frame 15m below water in pitch dark was complicated and became more so when the winter arrived with its rougher seas.

The release of the blocks and subsequent recovery of the frame was also very dangerous.

This, as with the Ferry Wharf, was a structure that was incredibly heavily reinforced.”

Referring to the Ferry Wharf element, he said the wharf comprised slabs and beams. A 65hp slab saw was used to cut 400mm slabs, which were then lifted out with a mobile crane.

A Hydrostress wire saw took care of the cutting up of the beams and piles. “The structure was built on piles and we had to make up a special rig to cut horizontally through these. We also

Hilti DS-HS 80 V2 Hand-held Gas Saw Designed for the toughest applications, the new Hilti DS-HS 80 V2 hand-held gas saw delivers strong power and performance. Providing increased performance in deep cuts, the DS-HS 80 V2 features a new carburettor setting for increased acceleration, while the narrow tool body and tall motor provide greater balance and less vibration for optimum working comfort. For exceptional performance and

reliability, the DS-HS 80 V2 also features a redesigned starter assembly, a cooler running motor and redesigned tank geometry that improves fuel intake. Additionally, the saw´s reversible steel flanges allow you to stock multiple blade types without the needs for different arbors. Hilti offers a complete selection of diamond blades, including the new Super Premium, Premium and Contractor Pro blades, for a variety of applications and base materials.

www. us.hilti. com

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PDi • Issue 5 - 2008 • Dec 08 - Jan 09

had to contend with tidal range access to the front wall of the wharf, which became difficult as the bottom was submerged at high tide,” says Holmes.

To lift the ten 13 t sections coring sling holes were used rather than lifting brackets.

As all operations were near the water’s edge, all its personnel had to wear self inflating life vests and often operated from floating platforms to undertake certain elements of the work. In

all, they cut 1140m2, equivalent to 6,500 t of concrete at the Tug Jetty and 1060m by 400mm deep slab sawing and 605m wire saw-

ing to remove 2,600 t of concrete to complete the Ferry Wharf removal.

Diamond Products Introduces Economical SpeediCut Jr. Cut-off Saw Diamond Products announces the introduction of its new SpeediCut Jr. cut-off saws to its product line. The economical 14-inch (356 mm) maximum blade capacity SpeediCut Jr. saw weights just 22 pounds (10 kg) and is ideal for professional concrete contractors. It joins the line

of SpeediCut saws already offered with 12-inch (305 mm) and 16-inch (406 mm) blade capacity models. Features of the SpeediCut Jr. saw include a 4.8 hp hemi engine, a three-stage filtration system, low emission, strong fuel economy and reduced noise.

Husqvarna Soff-Cut method to minimize random cracking in concrete

A common problem for building contractors is the risk of random cracking in concrete and can be both costly and aggravating.

Husqvarna Soff-Cut is a unique, patented system, which minimizes the risk of random cracking and speeds up the working process, compared to conventional concrete sawing.

The Soff-Cut system controls random cracking through the early timing of the cut, and usually enables the contractor to cut concrete on the same day. “Using conventional methods, random cracks often occur between the time the concrete is finished and when the control joints are cut. With our early entry method, the concrete can be within one or two hours after finishing and before the concrete has fully hardened. This minimizes the risk of random cracking and results in a concrete with higher quality,” says Husqvarna Construction Products Product Manager Michael Leroy.

Besides reducing the work time, the Soff-Cut technology also provides a more comfortable working environment for the user, with less dust and no slurry to collect. After cutting there is just a bit of concrete dry powder either side of the cut. The Soff-Cut early entry system is well established in the US market, and is part of the American Concrete Institute’s guidelines for concrete floor and slab construction since 1996. “We feel confident that the European construction industry will appreciate the benefits of this technology. Shrinkage cracks that arise during the first 24-hours are among the most costly faults that a contractor can be subjected to,” says Michael Leroy.

The market for the new floor saws comprises commercial buildings such as department stores and factory buildings, but also motorways and airport runways. The Soff-Cut European product range consists of four early entry saws, which all work in conjunction with Soff-Cut diamond blades and patented skid plates. The Husqvarna Soff-Cut 4200 self-propelled dry-cutting petrol saw has a low noise enclosed design. The lightest petrol saw and the most popular in the Soff-Cut range, the 150 has a patented low noise system, which allows it to be used in residential areas with minimal disruption.

Two Husqvarna machines that minimize random cracking in concrete by using the Husqvarna Soff-Cut system.

Without Soff-Cut preparation.

With Soff-Cut preparation.

Issue 5 - 2008 • Dec 08 - Jan 09 •

PDi 17

special survey

The new 633F4 ICS pairs the strength of FORCE4™ with the portability of a Gas Saw ICS®, the inventor of Diamond Chain Technology (DCT™) for cutting concrete and other aggregate material, announces the release of the 633F4 concrete chain saw, the first gas-powered saw to use their new FORCE4™ diamond chain.

FORCE4™ is the newest development in diamond chain from ICS, the world leader in the technology. Designed to be the strongest diamond chain on the market, the difference is easy to spot: a much larger chassis provides 50% more tensile strength than standard diamond chain. The 633F4 gives the superior strength of FORCE4™ the portability and ease-of-use that is a trademark of ICS gas-powered concrete chain saws.

Based on the popular 101 cc, 6.5 hp 633GC concrete chain saw, the F4 package comes standard with a FORCE4™ sprocket, FORCE4™ 14- or 16-inch (356 - 406 mm)guidebar, and ProFORCE™ diamond chain. Like all ICS gaspowered concrete chain saws, the 633F4 features slurry-resistant crankshaft sealing, dust-proof air filtration, and water-resistant electronic ignition.

A wet cutting system that can be supplied by a standard garden hose and reduces hazardous dust; a built-in WallWalker™ provides leverage to reduce fatigue and extend chain life. The 633F4 is able to plunge cut up to 16 inches (406 mm) deep and make perfectly square openings with no overcuts.

Headquartered in Portland, Oregon, ICS is a division of Blount International, Inc., a diversified manufacturing company with global distribution.

ICS introduced the world’s first concrete chainsaw in 1992 and sells a large line of concrete cutting chainsaws, diamond chains, and related products through a worldwide distribution network.

www.icsbestway.com

VIC International’s problem-solving shavemaster eats up concrete floor defects in no time Capable of removing a slurry cap and exposing aggregate at the rate of up to 800 square feet (74 m2/h) per hour, the new VIC ShaveMaster™ is a powerful, new, heavy-duty concrete floor problem-solving machine. Unlike scarifiers and shot blasters, the VIC ShaveMaster does not micro fracture the floor.

It can be used in unlimited applications including the correction of concrete joints, lippage removal, concrete grooving for anti-slip surfaces, removal of spalled out areas, coatings removal, joint and curled joint repair, paint stripe removal and the correction of a poorly placed concrete slab. The number of diamond blades under the machine may be reduced for grooving ramps to create non-slip walkways for sidewalks and in handicap areas. The powerful 15 hp, 460/480 V, three-phase motor allows for a 13-inch (330 mm) pass depending on number of blades and spacers required by the applications. The cutting disc diameter is 10 inches (250 mm). The cutting heads consist of 50 diamond blades allowing for an adjustable 1/8-inch (3 mm)depth of cut per pass with the width of the cut at 1/16 inch (1,5 mm). The approximate weight of the VIC ShaveMaster is 716 lbs (324 kg). The VIC ShaveMaster offers a high production rate, is self-

18

propelled with both forward and reverse, features manual cutting depth adjustments and leaves a smooth surface on the substrate.

Diamond vantage introduces new technology, saws and blades Diamond Vantage is proud to introduce a new diamond tool technology called Zenesis that encompasses the full range of professional saw blades, ring saw blades, silent core blades, stone blades and core bits. With the patented Zenesis technology, each diamond is placed in a specific location within the bond matrix. In so doing, optimum blade or bit performance is achieved resulting in significant improvement in both cutting speed and product life. Each matrix is specifically designed for its application, thereby maximizing consistency of tool operation. Diamond Vantage is now capable of providing a Zenesis product for every application. Diamond Vantage also introduces a new range of concrete and asphalt saws. The new range of equipment is manufactured in the United States and includes saws ranging in size from the 14-inch (356 mm), 9 hp, walk-behind saw to 36-inch (914 mm), 65 hp, self-propelled saw. Machines are generally available with gasoline or electric options and a variety of options. In addition to the pavement saws, Diamond Vantage offers masonry saws ranging from a 14-inch (356

PDi • Issue 5 - 2008 • Dec 08 - Jan 09

Diamond Products introduces new Core Cut Mini-Groover Walk Behind Machines Diamond Products announces the addition of its new Core Cut CG-1 & CG-2 Mini Groover Walk Behind machines. These compact grinding, grooving and texturing machines use 12-inch blades on a 5-inch blade shaft. The CG-1 machine features a 10-inch wide grinding head capacity while the CG-2 model has a 16-inch wide grinding head capacity. Both machines are available with a variety of power choices (gas, diesel

and electric) and feature a hydrostatic transmission. Other features of the new mini groovers is their easy manoeuvrability that enables them to get to hard to reach areas and power raise/lower system. The CG-1 unit weighs 800 lbs. Manufactured at the Oakdale, California, facility, the CG-1 and CG-2 Mini Groovers will add to the company’s broad line of highway grooving products.

mm), 2100 watt, dry masonry saw to a 20-inch (508 mm), 9 hp, gasoline masonry saw. Diamond Vantage also introduces a new range of early entry diamond blades. The EZ Green is designed specifically for use with the full range of Soff Cut saws and fits directly onto the machine arbor without the use of adapters. The blades are available in sizes ranging from 5 inches (127 mm) to 14 inches (356 mm) in diameter and a full spectrum of specifications to suit any geographical area and aggregate. Each specification is colour coded for easy reference.

have had a reputation for well-built industrial equipment and customer loyalty.

Hybrid floor maintenance has arrived The first of its kind, floor scrubber, burnisher and vacuum recovery unit powered with an EPA and CARB approved engine, is now available in one machine by Eagle Solutions. The EcoScrub-n-Buff will make a great addition to the janitor’s arsenal of floor maintenance equipment. It can be used on many floor surfaces including tile, VCT, polished or unpolished concrete, marble and terrazzo. The “hybrid” EcoScrub-n-Buff utilizes an energy efficient system of low engine RPM’s that power a high current DC alternator giving you the muscle to scrub and burnish floors at the same time without waste. The zero turning radius will save time and effort as the squeegee design extracts the dirt and solution leaving the floor dry. The large tanks make dispersal and pick-up easy and quick. The 27 inch (686 mm) burnishing pad leaves the floor with a glistening shine. Along with the engineered hybrid energy system and the benefits of time saving labor, the EcoScrub-n-Buff is designed with the environment in mind. Propane actually lowers CO2, a major green house gas, by 80% over electric, based on LPGA 2006 Energy Review. And because it is powered by clean burning propane, there are no dangerous electric cords to deal with or battery disposal issues. Eagle Solutions has also added an emissions monitor that will automatically shut the machine down if the engine is not running at optimum. Eagle Solutions has been a leading manufacturer of propane powered floor maintenance equipment since 1989.

They long

ICS names new director of European Operations ICS has appointed Erik Van Horen as Managing Director for ICS European operations. Van Horen, a current marketing executive within Blount Europe SA, will assume his new role February 2009. Van Horen began his progressive career with Blount in 2001 after a tenure in the automotive aftermarket industry. “Erik is results-oriented with the ability to create and implement a strategic vision. Having that kind of leadership on the ground in Europe will allow us to be more agile and responsive to rapidly changing product, market and customer needs,” stated Jake VanderZanden, ICS President.

In addition to a strong track record in sales and marketing leadership, Van Horen speaks Dutch, French, German, as well as English, abilities that will be essential to a company whose key European markets include France, Germany, UK, and Benelux. Along with a team of strong sales representatives, office staff, and warehouse personnel, Van Horen inherits the challenges of accelerating the placement of FORCE4-a new diamond chain platform-into the European market and ensuring continued overall growth in the middle of a worldwide economic downturn.

Interim Operations Manager, Joe Taccogna will remain in Europe through the first quarter of 2009 to assist the new Managing Director in his transition to ICS, then return to the U.S. to take on a management role.

www.icsbestway.com

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

PDi Magazine wishes its readers and advertisers a Merry Christmas and a Prosperous 2009

First Nigerian implosion completed by South African demolition major PDi’s African Editor Kevin Mayhew reports that Johannesburg-based Wreckers Dismantling successfully completed the first implosion of a building in Nigeria when it demolished a 22-storey building earlier this year. Its contract was to remove the Bank of Industry building which was structurally badly damaged in a 2006 fire and, for two years, presented a real threat of uncontrolled collapse in the centre of the oil rich West African country’s commercial capital of Lagos. In fact so real was the threat of collapse that a major part of the commercial centre of the city had been permanently cordoned off and patrolled by officials to keep people away.

FWA Fischer and Atlas Copco makes room for the new Fellbach tower

Unique implosion due to fire damage International group HITech Construction – which

had the contract to demolish and clear the building – approached the South African multi-disciplined company to provide a plan for a controlled explosives demolition tender, according to Wreckers chief executive officer, Mike Perkin.

“The peculiarity of the building lay in its fire damage, which called for a unique implosion to deal with the damage and how it might affect the building during its collapse. In fact the building had moved slightly sideways when the section damaged collapsed as a result of the fire”.

“I believe our plan was preferred as it was more holistic in its nature and we built in working with local contractors where we could find expertise for the numerous areas that are required for successful explosive demolition,” says Perkin.

High liability insurance cover

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The company had to provide a billion rand liability insurance cover (US$100,000) for the Lagos local authorities and provide adequate levels of safety for the public, employees on the site as well as the specific safety during the actual implosion and its aftermath.

To ensure public safety, the manning of control lines established by the Lagos authorities were left in place and it was deemed necessary to stabilize the building prior to any work being carried out.

Heavy vibration or movement could have triggered further collapse of the building, either by dislodging the hanging debris or by overstressing the already damaged elements.

The company also had to deal with South African legislation, which forbid it to export explosives sourced from traditional sources in its home country and suitable alternatives had to be sourced in the European Union.The implosion was undertaken on 21 September this year.

PDi • Issue 5 - 2008 • Dec 08 - Jan 09

The carcass of a building on the outskirts of Fellbach near Stuttgart, which had been planned as a hotel with a three-storey car park, has to give way to a 108 m high-rise apartment building.

Construction work was stopped in the middle of building activities about 20 years ago. An investor has been found for the ruins, who wants to build an apartment building, the so-called 5 to1 Tower, on the premises. The old building, with its 70,000 m3 of walled-in space, needs to be demolished.

With spans of up to 15 m and binding beams and columns with a cross section exceeding 1m2, this is not an ordinary day-to-day job for the demolition specialists of FWA Fischer Weilheim Abbruch GmbH & Co. KG. Work has to be carried out in an unobtrusive way because of a fast food restaurant and residential buildings in the immediate vicinity of the demolition site. Strong vibrations and large amounts of dust must be avoided. Therefore FWA Fischer Weilheim has equipped its excavators for the demolition with sprinkler systems.

The fleet of vehicles used for tearing down the concrete building includes four hydraulic excavators in the 30t to 40t class, all equipped with

hydraulic quick change facilities for Atlas Copco demolition tools.

Apart from two CC 3300 U CombiCutters, another three HB 4200 and HB 3000 demolition breakers were used in Fellbach. Two excavators with straight mono booms and the CombiCutters were used to tear the building down to ground floor level, after which the demolition breakers took over in the basement. They had to demolish the heavy beams in the ceiling of the basement as well as the floor slab and the massive foundations.

The operators were more than impressed by the power of the CC 3300 U CombiCutters. With their comparable jaw width and power the cutter weighs nearly a tonne less than other products on the market.

The operators at Weilheim are also enthusiastic about the hydraulic breakers. Powerful blows wreck the concrete without shaking the carrier and with only a minimum of vibrations.

Apart from the equipment used on the Fellbach site, Weilheim also has other attachments made by Atlas Copco. All sizes are available from the small 150 kg breaker still in the old blue colour up to the HB 7000. The oldest breaker from the Essen production shop still in use today is more than 30 years old.

FRD breaker for TVB in Bulgaria TVB Ltd is a leading contractor in Bulgaria specializing in utility projects and demolition.

TVB bought a FRD 35-XP breaker for a project in an old limestone quarry at Dimitrovgrad, about 250 km southeast of Sofia. But the breaker will also be used for future demolition projects in Dimitrovgrad, where there are a lot of old industrial buildings earmarked for redevelopment.

TVB was serviced by Euromarket Construction JSCo, a leading trade-engineering company in Bulgaria and FRD dealer for more than 5 years. Euromarket recommended FRD because in Bulgaria FRD hydraulic breakers are synonymous with high quality and reliability.

www.frd.eu

FRD 35-XP breaker at work in old limestone quarry in Bulgaria.

Conversion of a The Swedish concrete cutter Borrkompaniet with sub contractors played an important role during the conversion of the old Armour Regiment on the island of Gotland in Sweden.

Municipal authorities will move in to the buildings during next year.

The Swedish army has been gradually dismantled over the past ten years. Several of their buildings have been demolished or converted into offices, hotels, apartments or shops. One of them is the Armour Regiment P18 built in 1810 on Gotland, an island between Sweden and Estonia.

In December 2004 the Swedish government decided to close it and since June this year the building is being renovated and rebuilt.

Demolition, concrete cutting and clearance The municipal authorities of Gotland will move in to the renovated regiment complex of four large, solid brick buildings. The interiors of the buildings are Pentti Hietala is project manager for demolition, concrete cutting and clearance at the Armour Regiment P18 project.

made very modern with open plan floors. Glass walls replace several brick walls and the new offices will have a very open and light atmosphere. Client is the governmental real estate company Vasallen. Building contractor is the Swedish company PEAB and the demolition is controlled by the company Borrkompaniet. It is doing the concrete sawing and drilling and clearance with sub contractors Lundström Brothers Concrete Cutting and A-Sanering.

Borrkompaniet started the demolition work at the beginning of June this year and the initial contract will end early in the New Year. All workers from Borrkompaniet and the sub contractors live at the regiment building in the same rooms as the former soldiers. “This has been an extensive job and a bit complicated due to the fact that we work on an island and is three hours on a ferry to the mainland. Everything must be planned much more carefully and deliveries are more complicated and take more time. We also need to have a lot more tools in stock compared to work on the mainland,” says Borrkompaniet, work manager Pauli Hietala. Project manager at the regiment building is Pauli’s brother Pentti Hietala.

Creosote adds to project cost Pentti Hietala says that up to 40 men from the company have been working on the project. Borrkompaniet has opened up elevator shafts, dug elevator pits, demolished walls, moved vaults and much more. Partial and interior demolition has been carried out in four buildings and has been heavy and extensive in one of them. Brokk 90s have done most of the demolition together with Brokk 180s as well as five Bobcats and many jackhammers. Some 1000 t of bricks and 100 t of reinforced concrete have been taken down. All demolition rubble has been deposited in Gotland together with asbestos, creosote and gypsum. Unsorted waste and all metal was sent to the mainland for recycling.

The unexpected discovery of creosote was a surprise and added another EURO 100,000 to the price. Besides that the price for the demolition, concrete cutting and other clearance work will be around EURO 2.2 M. Additional work will add another EURO 288,000.

Extensive concrete cutting The project also included a large amount of concrete sawing and drilling. Although Borrkompaniet is a concrete cutting contractor, it decided, due to the large amount of demolition work, to use Lundström Brothers Concrete Cutting for the sawing and drilling jobs. Joakim Lundström says that there has been quite a lot of sawing and drilling divided in tasks like opening up for doors, drilling for ventilation and other types of installations. Several walls have been cut down to

22 28

From the left Borrkompaniet work manager Pauli Hietala and Hasse Johansson from the clearance company ASanering.

PDi • Issue 54 - 2008 • D Oec ct 08 - Nov - Jan 09

a Regiment open up the interior layout of the future offices.

“Concrete cutting started in mid June and will be finished at the beginning of 2009. When finished we will have wall sawed 600 door openings and we will drill in total 3,000 holes in the four buildings we are working in. We also have a number of additional jobs here and there in the buildings,” says Joakim Lundström, who has four employees on the job. The heaviest part is the wall sawing as each building contains some 500 m of wall sawing. Mostly they use 800 mm blades, but also some 1000 mm and 1200 mm blades as well.

Diamond tools and machines from EDT EURODIMA The Austrian manufacturer EDT Eurodima supplies all diamond tools. But it is EDT Eurodima AB, the Swedish subsidiary and its sales representative Carl Offenbacher, that has made sure that all deliveries have been correct and on time.

The Lundström Brothers also use machinery from EDT Eurodima, including drilling systems and the wall saw EDT Eurodima braxx sb320 Tornado. The wall saw is high frequency powered and has a capacity of 32 kW. The maximum sawing depth is 920 mm and the motor and saw head weigh 38,5 kg only, which makes the saw smooth to work with.

“I only have good things to say about EDT Eurodima wall saws. I have used a Hilti saw before and when I run that on maximum the EDT Eurodima saw does the same job on half speed. I think that is amazing,” says Joakim Lundström.

“It also runs very even, it is easy to feed and is not so sensitive as other saws.”

The Lundström Brothers keep a stock of diamond tools on site and Carl Offenbacher makes sure that all sizes are available. “Quite a lot of diamond tools are consumed on a job like this and these buildings contain mostly bricks, which wear the Below the Lundström Brothers Concrete Cutting. From the right Jens Lundström, Joakim Lundström, Carl Offenbacher from EDT Eurodima AB, Christoffer Berg and Fredrik Wallén both from Lundström Brothers.

tools rather hard. But I am here regularly and make sure they have the tools and that the machinery functions properly,” says Carl Offenbacher. “We are very satisfied with the tools and the machines. The tools are fast and offer a high efficiency. We have also tested the new 9 mm high segments with a new type of diamond mix called Duramant, which runs very well,” says Joakim Lundström. “Duramant is based on a completely new technology with a high concentration of diamonds. Duramant increases both the efficiency and life of the tools.”

Below the wall saw EDT Eurodimas braxx sb320 Tornado in action equipped with tools from the same company.

Pictures to the right showing the storeroom and one of the rooms from the regiment.

Issue 5 - 2008 • Dec 08 - Jan 09 •

PDi 23

Eagle eyes new ideas for floor preparation maintenance From the outside the US headquarters of Eagle Solutions in rural Adairsville, Georgia, looks like a typical light manufacturing facility. But inside, the otherwise ordinary 4,650m2 building is bustling with new ideas and innovations for concrete floor preparation and maintenance equipment. It seems hardly a month goes by that Eagle does not introduce a new product or spotlight a new way in which its products can benefit professional contractors.

Text & Photos: Jim Parsons

According to Eagle Solutions marketing director Heather Cavalier, continual innovation is essential not only for the sake of Eagle’s competitive standing, but also that of its customers. “The world is spinning so fast these days,” says Cavalier. “If we don’t keep up, neither can our customers. Constantly looking for new things to offer is the only way we can help them grow and deal with this ever-changing world.”

Propane primary fuel source for Eagle Good ideas can also put a company in the right place at the right time. Since founder Dave Walker launched Eagle with a line of floor burnishers in 1989, propane has been the primary fuel source for the company’s equipment. The combination of cordless convenience, better engine performance, and lower maintenance and wear helped Eagle soar to a leadership position in propane powered floor maintenance products.

The fact that propane centric products also have a substantially smaller carbon footprint compared with electrically powered equipment tended to be more of a back burner issue for Eagle’s customers, until environmental responsibility became a key point of emphasis for contractors and facility owners alike.

Now, concrete floors maintained with propane powered equipment are increasingly being utilized to enhance a project’s “green” qualities, not to mention improve efficiency and safety, and cut costs.

For example, Eagle’s new EnviroPro line of ultra high speed 533mm and 686mm burnishers meet GreenSealTM GS-42 and LEED requirements for green cleaning with standard energy and environment conserving features, such as a dust control system, an electric clutch that stops the pad when the handle is released, and an emissions monitor to constantly evaluate engine performance, including an automatic shutdown if emissions exceed safety standards.

Alertness to ideas

Good timing is not enough to be ideally positioned to take advantage of the demand for green floor maintenance products. Eagle chief executive officer Mark Magee says that success begins and ends with having an inherently good product.

“Our experience and research have given us a broad perspective on the variety of markets that would provide a focused opportunity for us,” says Magee, who came to Eagle from surface maintenance giant Tennant Company. “It stands to reason that we would focus on gear that would be easily accepted into other channels.”

One of those new avenues is concrete floor grinders and polishers, a market segment that Eagle has featured at the last two World of Concrete exhibitions with products such as the 330mm and 762mm SP13 and SP30 grinders. In keeping with Eagle’s green connection, both products are powered with EPA and California Air Resources Board certified, low emission propane engines.

“The potential for polished concrete to reduce the use and disposal of resources that affect the future of the earth is staggering,” says Magee. “We are fortunate to have the most knowledgeable field The new EnviroPro® team in the market. We WA27 burnisher from want to leverage their Eagle Solutions. skills to provide the best 24 PDi • Issue 5 - 2008 • Dec 08 - Jan 09

Picture showing Eagle equipment at a training session. recommendations to a meet a customer’s specific needs. It is exciting for us to be a resource where people can learn more about how they can be a part of protecting our planet, and make a living doing it.”

Recognizing that no one organization has all the answers, Eagle has enhanced the quality of its products through the development of strategic alliances with other manufactures, including those that might, at first glance, appear to be competitors.

For example, Eagle is pooling its expertise and national service network with Everett, Washington based Innovatech Products and Equipment Company to develop new equipment and technologies that will help the surface preparation and concrete grinding industry reduce costs and improve service.

Eagle business development director Tim Slusher says that the company’s willingness to form these alliances, allows the company to increase its credibility and responsiveness to industry market trends with better informed intelligence before it makes decisions.

That enables the company to put the right products and people in the appropriate application.

Tips and techniques The alliances also enhance Eagle’s ability to share knowledge with contractors through an ambitious programme of training conducted at a dedicated hands on training facility in Dallas, Texas, and at other locations around the country.

Joining forces with Innovatech and other leading manufacture industry resources, Eagle offers free sessions to find solutions on issues, such as concrete polishing, floor covering removal, surface preparation for tough jobs, and special considerations for polishing stone and decorative surfaces.

“Certainly, we want contractors to know about our equipment,” says Cavalier. “But more importantly, we want them to see the big picture when it comes to polishing, what are the best techniques and chemicals to use on specific surfaces, what approaches will help improve their productivity, and how they can help customers make their floor maintenance efforts more environmentally friendly. The right training and knowledge of all resources available to do a job is paramount to us,” adds Magee. “We may or may not always be the provider of the best solution for a particular problem, but we are able to direct clients to knowledgeable people who will enhance productivity, results, and solve potential problems.”

Completing the product education cycle, Eagle’s partnership with Tennant provides customers 120 days of service on new equipment, helping contractors learn the elements and importance of

preventive maintenance, and what they can do to extend the life of their machines.

“We view the customers who buy our products as Eagle representatives in the marketplace,” says general manager Greg Smith.

“By providing them with timely, comprehensive training, we hope to provide better results for the clients they serve.”

Eagle’s blending of responsiveness and innovation will likely

Main entrance at the plant in Adairsville in the state of Georgia, USA. prove to be valuable attributes as the construction industry navigates the uncertain economic outlook.

“The economy has been rough on everyone, but it hasn’t slowed us down,” says Cavalier. “There are still restoration and remodelling projects going on. Interest in LEED and environmental awareness will only grow stronger.”

Slusher adds that increasing floor durability and minimizing maintenance are also recession-proof concerns. “This industry will continue to evolve with better finished concrete surfaces with higher priorities on floor flatness levels, better maintenance methods and systems implemented by building owners and building service contractors to keep and maintain the polished slabs effectively,” says Slusher.

Eagle is already at work to meet this need with products, such as the recently introduced cordless EnviroPro® WA27 burnisher, which can be used to maintain a wider range of floor types thanks to its adjustable head weight feature.

“If we provide clients with the best solutions that provide the best results, the market will continue to expand rapidly,” says Magee.

www.eaglesolutions.com

To the right pictures showing the production.

The Brokk 400 is the largest machine in the Brokk range and the most powerful demolition robot available on the market today.

400

gemrek lam.com 4657 -08

Powerful Demolition with the new Brokk 400

To maximise utilisation of the Brokk 400 it can be fitted with a wide selection of demolition tools including hydraulic breaker, concrete crusher, steel shears, buckets of different kinds, scabbler, driller, and grapple.

Visit brokk.com or your local dealer for more information!

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Issue 5 - 2008 • Dec 08 - Jan 09 •

PDi 25

Family owned and operated Dixie Diamond Manufacturing is a growing presence in the US diamond tools industry.

Text & Photo: Jim Parsons

Place a call to Dixie Diamond Manufacturing president Greg Wolters and you may well find yourself speaking with his brother Garrett, the company’s vice president and operations chief. The reverse situation happens just as frequently.

The advantages of a family business Fortunately for customers of the company based in Lilburn Georgia, first names and business titles are about the only things that differentiate the brothers. Because co-owners Greg and Garrett have exchanged roles and responsibilities over the years, it usually does not matter which Wolters you work with.

Segment Sintering process for DDM diamond blades.

Greg (left) and Garrett Wolters, co-owners of Dixie Diamond Manufacturing.

“That’s the advantage of being a family business,” says Greg. “Customers know that they can always talk to the owners and expect a fast decision. There are no layers of bureaucracy to work through.”

Responsiveness is just one of the many important values instilled in the brothers by their grandfather, C.A. Wright, Sr., who founded DDM in 1969. Formerly a sales representative for an industrial blade company that served the region’s stone quarries, Wright initially helped develop gang saws for the Georgia Marble Company in Tate, Georgia. DDM later developed blades for distribution nationwide.

Greg and Garrett became the third generation of family owners in 1995 when they purchased the company from Wright and their uncles. Since then, they have invested in developing DDM’s manufacturing resources, equipping their 740m2 facility with Dr. Fritsch diamond tool equipment from Germany, growing their staff to more than 50 employees, and expanding the company’s line of diamond blades and core bits.

The brothers have also worked to raise DDM’s visibility in the cutting and drilling industry through a sales force that combines

Tools with 26

PDi • Issue 5 - 2008 • Dec 08 - Jan 09

direct factory salesman and a nationwide representative system, and regular appearances at major trade shows such as World of Concrete, STAFDA and the ARA Rental Show.

Powerful products Steady growth is easy when you have good products to sell, which is another lesson learned from Grandfather Wright, and one that is especially important in today’s highly competitive market.

“Since we began expanding into the professional diamond tool market about five years ago, we’ve progressively focused on producing some of the best diamond tools available,” says Garrett.

Take the company’s diamond blades, which range from 300mm to 1.5m in diameter for a wide range of concrete, asphalt, masonry, and quarry applications. “We use only the finest raw materials including Western Saw cores, DeBeers Element Six industrial-grade diamonds, and Umicore powder selections,” says Garrett. “We can do a single laser weld up to 48 inches (1.22m) to ensure long-term durability.”

Two new products were recently added to DDM’s diamond blade line. The “PC” pipe cutter blade features a special segment design for fast cutting and cooling, and silicon carbide to eliminate pinching. These are qualities that are particularly valuable for fire and rescue applications. The company’s NCS Plus and NCSM Plus blades provide 40% more life for wet or dry concrete, brick, and block cutting Similarly, DDM’s core bits come with laser-welded 25mm and 38mm diamond segments and 50mm to 200mm diameter bits for drilling into prestressed and precast concrete. Dixie Diamond can also craft custom core diameters and lengths, and provide continuous crown bits from 9mm to 48mm diameter for anchor hole drilling. “This is our fastest growing product line thanks to the stringent bonding specifications we’ve developed to meet area-specific aggregates,” says Greg. “Our approach offers the best balance of speed and long life, which is what users are asking for. They want to do as many jobs in a day as possible in order to maintain their profitability.”

Getting things done is certainly important to Joe Ingalls owner of Patriot Concrete Cutting of Piedmont, South Carolina.

At a wastewater treatment plant in Greenwood, South Carolina, PCC’s cutting specialist used DDM’s Wall Shark blade to cut a 2.16m x 3.35m opening in 300mm thick reinforced concrete walls, pleasing everybody on the project.

“If you can please operator Mitch Robinson, who has been cutting concrete for 20 years, you have done something good,” says Ingalls. “He was able to complete this opening in less than three hours, including set-up time, and move on to other wall sawing needs on this project.”

Obstacles and opportunities Along with producing quality, long-lasting blades for a near infinite range of applications, DDM also offers the advantage of a US based manufacturing and support operation, providing a level of responsiveness that many customers consider absolutely critical.

“Being based in the Atlanta area gives us the ability to address customers’ issues and modify products to meet their application needs on a timely basis,” says Greg. “For most of our professional grade products, we can change the bond specifications and have the items on their way to the field in less than 24 hours.”

Above: Segment cold pressing for DDM diamond blades.

Right: DDM AsphaltBlock, DUALBlade, and Turbo-Max; DDM Core Bits are some examples of DDM products.

While the professional cutting market consistently demands high performance and quality, there are concerns that smaller contractors, who buy blades and core bits through distributors and rental companies, may be more tempted to opt for less quality, lower-grade products, which is a situation that has been exacerbated in recent years by the influx of Asian produced diamond blades in the US. Garrett says that while price plus superior customer service and delivery have helped DDM remain competitive, US based companies can do only do so much on what is an increasingly unbalanced playing field.

“We have no problem with competition from anywhere as long as it’s fair,” says Garrett.

Tradition Issue 5 - 2008 • Dec 08 - Jan 09 •

PDi 27

DDM keeps a wide range of products ready for immediate shipment. Custom blades can also be prepared and ship in as little as 24 hours.

Five pictures below: At a US wastewater treatment plant in Greenwood, South Carolina, Patriot Concrete Cutting used DDM’s Wall Shark blade to cut a 7 ft, 2 in x 11 ft (2.16 m x 3.35 m) opening in 12-inch (300 mm) thick reinforced concrete walls.

Fortunately, relief is in sight thanks to a favourable ruling in an anti-dumping lawsuit brought by the Diamond Saw blade Manufacturers Coalition, of which DDM is a member. The US Court of International Trade agreed with the coalition’s contention that unfairly priced imported saw blades and parts harmed the US diamond blade industry.

“The ruling is going to go a long way toward clearing up the pricing issue, and make it easier for customers to match products to their needs,” says Garrett.

Extention of the production plant Another outcome will likely be increased demand for DDM products, which is a major reason why the company is currently doubling the size of its facility to 1,400m2, providing much needed space for added manufacturing capacity and materials storage.

The expansion will also be an appropriate way to commemorate the company’s 40th anniversary in 2009.

Greg says that while the current economy currently has customers and project owners moving cautiously, the long-term outlook is promising, particularly in the area of infrastructure rehabilitation.

“There will be a lot of bridge deck work coming up across the country,” says Greg. “Because they are very hard and have a lot of reinforcement, contractors will require special equipment for them.”

Otherwise, it will be business as usual at DDM, and the Wolters brothers are counting on a lot more of it.

“We’ll continue to innovate and streamline our business, and give our customers the best service and support we can,” ends Garrett.

www.dixiediamond.com

28

PDi • Issue 5 - 2008 • Dec 08 - Jan 09

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

VIVA LAS VEGAS One thing for sure, recession or not, it is always business as usual in Las Vegas.

Not only in the casinos but probably also at the fair grounds during World of Concrete 3-6 of February, 2009 when a big number of the suppliers to the world’s demolition, concrete sawing and drilling and recycling markets get together.

World of Concrete 2009 returns to the Las Vegas Convention Centre, 3-6 February; Seminars 2-6 February, for its 35th event, and will continue to build upon a reputation as the only annual international commercial construction show for the concrete and masonry industries. The start field is slightly thinner then normal, due to the economic situation, but still to satisfactory. Please see list of exhibitors on page 32.

Good reputation With energy consumption and conservation a concern around the globe, combined with a booming interest in the green construction market, concrete is more relevant and important than ever to the commercial and residential construction markets. World of Concrete 2009 will showcase exhibits, educational sessions and forums to address this and many other issues by providing relevant solutions, products and technologies.

Recognized by Tradeshow Week as one of the Fastest 50 Tradeshows in both 2007 and 2008, WOC 2009 will once again feature special product and action areas including The Producer Center, a dedicated marketplace of materials, equipment, demonstrations, and seminars for concrete producers and Material Handling, offering trucks, excavators and more for material delivery, distribution, concrete placement and earth moving.

Concrete repair, renovation and demolition This section on the show is featuring surface preparation products and equipment, scarifying, grinding, concrete sawing equipment and other demolition products such as attachments, demolition carriers, demolition robots, hydrodemolition robots, equipment for taking care of debris, dust and slurry, air cleaners and a lot more.

World of Masonry is showcasing a full range of products, tools, information and technology for masonry professionals. Technology for Construction, featuring the latest products

and technologies for the commercial construction industry from top information technology and systems providers.

“Although the economy is facing some challenges at this time, indications are that WOC will still be a very successful event. Companies realize they need to stay up-to-date on the latest industry trends and products and be prepared for when the economy improves in order to seize the many business opportunities that will be available to them,” states Show Director Tom Cindric.

Returning in 2009 will be the “Greensite” exhibits & presentation area showcasing green build technologies.

Premiering at the 2009 event will be the New Product Showcase, highlighting the number one reason attendees come to World of Concrete, to see the newest industry products and technologies.

IACDS Diamond Award New for the 2009 edition of World of Concrete is that the International Association of Concrete Sawers & Driller’s Diamond Award will take place at the show. Diamond Award is an international competition among professional concrete sawers and drillers. More about the competition on pages 52-53 or at www.iacds.org.

www.worldofconcrete.com

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PDi • Issue 5 - 2008 • Dec 08 - Jan 09

Exhibitors at World of Concrete 2009

Below the list of exhibitors related to demolition, hydrodemolition, recycling, concrete sawing and drilling, concrete floor preparation and polishing, dust extraction and air cleaners. The list below is current as 1st Dec., 2008. For an updated list please check the WOC website at www.worldofconcrete.com.

32

Exhibitor

Booth Number

EDCO & CONTRx Systems

O30637

Advanced Cutting Technologies Inc.

S14805

EDCO & CONTRx Systems

O30631

Allied Construction Products, LLC

C6496

Edco Technologies

S10655

Allied-Gator, Inc.

S12138

E-Z Drill Inc

S11427

Applied Technologies

S12105

Gehl Company

C5899

APS Cork Co

S13306

Giant Industries

S21814

Aqua Blast Corp

S13415

Golz, LLC

O30112

Atlas Copco

C4557

Golz, LLC

O30114

Belle Group, Inc.

C4014

Grind-All Supply

C7981

Blastrac

S10123

GrindAll Surfaces

O30835

Blastrac

O30548

Hilti Inc

O30874

Brokk

C7382

HTC

S10815

Brokk Inc

O30626

HTC

O31116

Case Construction Equipment

C5869

Husqvarna Construction Products

C4849

Caterpillar Inc

C6069

Husqvarna Construction Products

O30801b

Chicago Pneumatic Construction Tools

C3825

Husqvarna Construction Products

O30801c

Concrete Sawing & Drilling Association

S11131

Husqvarna Construction Products

O30801

Concrete Sealants, Inc.

S11305

Husqvarna Construction Products

O30801a

Concrete Slurry Solutions

N563

Husqvarna Construction Products

O30801d

Concrete Solutions Inc

S11239

ICS

O30503

Concrete Solutions Inc

O40861

INDECO North America

C6413

Conjet AB

S10855

Innovatech

S10907

CS Unitec Inc

S13727

Italpunte USA

C6413

Diamond B Inc

O30412

Joint Free Slabs

N3070

Diamond Blade Depot

S12856

Justcut Inc

S22002

Diamond Blade Depot

S14828

K2 Diamond

O31466

Diamond Blade Depot

C7994

Komatsu America Corp

C7839

Diamond Blade Warehouse

S11629

Liebherr

N425

Diamond Blade Warehouse

S12712

MBK Maschinenbau GmbH

N2877

Diamond Concrete Tools & Innovative Solu.

O31004

MK Diamond

S13427

Diamond Liners Inc

S21631

Multiquip Inc

C4813

Diamond Pauber SRL

S12453

Multiquip Inc

O30521

Diamond Products

S10939

Multiquip Inc

O30421

Diamond Products

C4613

Multiquip Inc

O30431

Diamond Products

O30111

New Great Diamond Tools Co., Ltd./

Diamond Speed Products, Inc.

S21811

China Miku Diamond 2nd Co., Ltd.

S13541

Diamond Technology

S21830

New Holland Construction

C6469

Diamond Vantage

S12538

Protech Diamond USA, Inc.

S20731

DIBO Produktions partner AB

S12651

Pullman Ermator

S11727

DICA

C4515

Putzmeister America, Inc.

C5737

DIDA Diamond Tools

S13347

Sanders Saw - A Division of Multiquip, Inc.

O30403

Dieci Telehandlers

O31556

Sanders Saws - A Division of Multiquip, Inc.

C4843

Diteq

S12127

Stihl Inc

C4661

Diteq

O30119

Stow - A Division of Multiquip, Inc.

C4835

Dixie Diamond Mfg Inc

S11413

Superabrasive, Inc.

S12051

DuraJoint Concrete Accessories

N2573

Takeuchi

C7089

Dust Collection Products

S13108

Toolgal USA corp

O30310

Dust Control Technology

S21925

Toolgal USA corp

O30310

Dustcontrol

S11555

Value Tech Ltd.,

N1079

Dustless Technologies

S12313

VIC International Corp

S10251

Eagle Solutions

S20425

VIC International Corp

O31617

Eagle Solutions

O31446

Wacker Neuson

C4215

Eco-Crusher

O31813

Wacker Neuson

O30346

EDCO & CONTRx Systems

S10827

XLD Diamond MFG, Co, Ltd

N1762

PDi • Issue 5 - 2008 • Dec 08 - Jan 09

Your time Our commitment

Working Tools Atlas Copco working tools are much more than just pieces of steel. Because we manufacture both machines and tools, we´ve been able to perfect dimensions, material properties and tip geometry. The result is greater and higher productivity.

At Atlas Copco, we take your time seriously.

Atlas Copco Construction Tools www.atlascopco.com/cto

“The New Su Swedish manufacturer of remotely controlled demolition machines is taking one step up. The company is replacing their Brokk 330 with the larger and more powerful Brokk 400, which has a reach of 7.5 m and can carry breakers up to 600 kg.

It is has been a year for demolition robots. First it was the new demolition robot manufacturer Finmac Demolition, which released their F16 at Bauma last year. Then Husqvarna Construction Products surprised the market with the recent introduction of the DXR 310. Now Brokk AB has announced a new heavy-duty remotely controlled demolition robot called the Brokk 400. This is the biggest in the range at 4.8t and replaces the Brokk 330.

Remotely controlled demolition technology since 1976 At Brokk they do not say “robot”. The correct name should be remotely controlled demolition machine, as a robot does the job itself following a preset instruction. Since the end of the 1970s and beginning of the 1980s Swedish remotely controlled demolition technology has created a lot of attention among the world’s demolition and concrete sawing and drilling contractors as well as within the process industry.

Rivteknik was once the biggest demolition company in Sweden with subsidiaries all over the country and with connections in USA. It was Per-Martin Holmgren, Lars Holmgren and Börje Hedlund who realised that they needed a more efficient method for taking down and cleaning out hot coatings from furnaces in smelting plants. One of their largest clients was located just outside Skellefteå. In 1976 they developed a wheeled vehicle with a boom, which was operated electrically and connected by a cable to a separate control box. Either a bucket or hydraulic breaker could be fitted to the boom. The machine was initially for

First created by the user Brokk started with the contracting company PE Holmgren in Skellefteå and later on with the demolition company Rivteknik (Demolition Technology).

their o w n use, but it needed a name.

There were many suggestions and eventually settled on the name Brokk, which comes from the Nordic mythology. It was the name of the very strong dwarf and blacksmith who made the Viking God Thor’s hammer.

The news about the new remotely controlled machine spread quickly. The inventors realised that the machine could be sold to other contractors and production was placed in a separate company

34

PDi • Issue 5 - 2008 • Dec 08 - Jan 09

uper Brokkâ&#x20AC;? called Holmhed Systems AB. Around 1980 Atlas Copco realised the value of the product as it could increase the sales of their breakers and bought the company and started exports to the USA.

The Brokk Method The Brokk method was an instant success. During the first 10 years the machine developed rapdily. The first machine was called Brokk 80 followed by the Brokk 250E and the track mounted Brokk 250T. Among Swedish demolition and concrete sawing and drilling contractors Brokk became a very common sight and quickly spread outside Sweden.

Even though Brokk was a great idea it operated in a narrow segment and when Atlas Copco decided to focus on its core business Brokk was sold to the investment company Sorb Invest AB. During the 1980s the use of Brokk machines increased, but there were few product developments until the end of the 1980s when the Brokk 100 was released. This was a smaller machine then the Brokk 250 and had the power unit placed above the undercarriage and was easier to service.

Through the 1990s growth continued. Marketing intensified, the sales and distribution network extended, turnover doubled several times and the US market, with the exclusive dealer North American Sales, was a big reason to this. Several new products were also launched, like the Brokk 110 for construction, Brokk 150, which was made in two versions. One was for construction and one for the process industry and the small demolition robot MiniCut, later redesignated the Brokk 40. The popular Brokk 250 was replaced by the Brokk 330 in 1996. During this period the name of the company was changed from Holmhed System to Brokk AB.

Nearly 5000 machines in operation The strong growth during the 1990s continued into the next decade and increased even more. During the 1990s sales exceeded 1,000 machines and today nearly The Brokk 400 is sturdier, but just a bit heavier then Brokk 330 and has a capacity increase of 50%.

From the left Marketing Communications Manager Eva Skinner, Brokk President Per Waldemarson and Technical Manager Gunnar Bystedt.

Issue 5 - 2008 â&#x20AC;˘ Dec 08 - Jan 09 â&#x20AC;˘

PDi 35

5,000 machines have been delivered. Brokk 90 and Brokk 180 have replaced the old models Brokk 110 and Brokk 150 and Brokk 40 replaced by Brokk 50.

In addition Brokk AB acquired some years ago their US and UK distributors. Subsidiaries have also been formed in England, China and recently in Singapore forming Brokk Asia covering both the Asian market and Australia and New Zealand. In 2006 Brokk acquired their longstanding business partner Darda GmbH, which manufacturers among others hydraulic demolition crushers. Besides their own subsidiaries Brokk also has a network of 30 to 35 distributors and agents throughout the world.

Strong owners Today Brokk AB is a part of LIFCO Group owned by Carl Bennet AB. LIFCO Group is a group of industrial companies producing various types of products like machines and tools, sawmill equipment, dental products, environmental technology products, contract manufacturing products as well as interior fittings for vehicles.

LIFCO has a turnover of more then EUR 500 M and employs 2,300.

The annual turnover for Brokk is about EUR 44 M and the number of employees is 160. The production facilities have also been modernised and extended. A separate plant nearby has been acquired where production of the newest Brokk models and special applications take place.

The total production area with offices covers some 6000 m2 in Skellefteå.

Intensive work

The Brokk 400 has been designed as optimal as possible for its weight range. It is 400 kg heavier then Brokk 330, well balanced with a low point of gravity. It has more or less the same dimensions as Brokk 330, but 50% more power counting also the breaker.

The new Atlas Copco SB552 breaker is developed in particular to cope with the new Brokk 400. The breaker weighs 600 kg. Brokk 400 has the astonishing total reach of 7.5 m.

36

Brokk President Per Waldemarson says that a lot has happened at Brokk during the last two to three years. “We have experienced very strong growth in most of the markets where we are operating. It is only during recent months we have experienced a slight slow down due to the economic situation in the world,” says Per Waldemarsson. “We have invested and we are investing a lot of time and money in improving service and aftersales support and in particular to educate our existing distributors and agents as well as finding new dealers that are dedicated to work with Brokk. Our clients must have immediate access to the service provider and shouldn’t need to wait too long for support and parts. Even in our most remote markets we want to offer first class service to our clients. That is why we are now investing in more fully owned subsidiaries, like the one in Singapore. We also invest in special training and courses for our distributors and agents.”

But it is not just about educating the sales and service people. Recently Brokk launched a special Brokk Academy for training operators.

Another priority is new product developments. “Product development is a major priority and always has been,” says technical manager Gunnar Bystedt. “But the increased competition has not changed our planning or speed. We have always maintained a high level of development. But things go up and down of course and right now we are experiencing an intensive period. But Brokk has always been very thorough when dealing with new components and

PDi • Issue 5 - 2008 • Dec 08 - Jan 09

products. Nothing will ever be released too early. We prefer to wait a little bit longer in order to be 100% sure that our products have been thoroughly tested.”

Brokk 400, a new heavy weight machine A result of this development work is the new Brokk 400, initially launched in Sweden at the beginning of November and will replace Brokk 330. The Brokk 400 weighs 400 kg more then Brokk 330 and has more or less the same dimensions, but provides up to 50% more working efficiency. Brokk 400 can carry tools weighing up to 600 kg.

Also the characteristics of the machine have been upgraded. Brokk 400 has a reach of 7.5 m with the boom in 45° position, which is probably the most common position when working with a demolition robot. The machine is available with either cable or radio control.

“We have a had a strong demand for this machine. Clients have asked for a machine with similar dimensions but with better reach and more power so we gave them the Brokk 400 and I think they will like it,” says Gunnar Bystedt.

Mini excavators are now increasingly being used in demolition applications and is recognised by Brokk. “We are aware of the increased use of mini excavators, but it is impossible to compare a mini excavator with a Brokk. Brokk is a completely different machine and is used in a different way and has basic benefits that a mini excavator cannot match,” says Gunnar Bystedt. “The basic benefits are, for example, that the operator controls the machine far away from where the actual demolition takes place and is protected from falling debris. From this position the operator also has a much better view of the operation. Other big differences are the power and the flexibility.

Brokk 400 weighs 4.8 t and its special boom system and power cannot be compared with a mini excavator of the same weight.

It must be compared with a much heavier machine. But it is impossible to operate a excavator on the kind of ground that Brokk 400 and others have been developed to work on. To compare any Brokk with a mini excavator is like compare apples with pears.” “ O u r technol-

o g y, t h e material we use, our steering and control system and our documented knowledge about remotely controlled demolition machines looks completely different from what counts for mini excavators,” adds marketing communications manager Eva Skinner.

“On the contrary with Brokk 400 our clients are now even more able to take on jobs that earlier where done using

The assembly of the complete range of demolition machines take place at the plant in Skellefteå. Most of the components are produced locally. Brokk also has a service centre in the premises. Picture above to the right shows part of the new plant where the new Brokk 400 is produced. The employment rate is very low and most employees stay with the company for many years.

heavier medium sized excavators with a much higher flexibility. Brokk 400 will be a bigger resource on traditional Brokk jobs as well as on jobs that were previously done by an excavator. Brokk 400 has been developed to demolish, but it is also an excellent excavator fitted with a bucket. Perfect to bring out demolition debris,” says Per Waldemarson.

The development of Brokk 400 was based on a long requirement list. The new machine should be stronger, have better reach, be as compact as the 330 and be durable with a minimum risk for machine failure and at the same time be easy to service.

“I think we have been doing a rather good job in fulfilling the demands.

Several new characteristics make Brokk 400 a completely new high performance machine. Our prototypes have been on test for a long time and the contractors that have tested it have given very positive feedback,” says Per Waldemarsson.

More news So far Brokk 400 has only been shown at some customer meetings in Sweden.

The official launch in Scandinavia will be at the show Byggmaskiner/DemExpo in Gothenburg in January. For the US audience it will be revealed at World of Concrete in February and for the rest of Europe at Intermat in Paris next April.

Other recent products from Brokk are a new sorting grapple and an automatic drilling system that can be mounted on the robots.

The new Brokk 400 has already been used on a large and prestigious tunnel job in the Paris Metro.

Picture below showing the machine is the most common working position with a total reach of 7.5 m.

www.brokk.com

Technical data

Product Weight, kg Width, mm Height, mm Electric motor, kW

Hitting power, hammer SB 552/SB450 Recommended max. weight of tool

Brokk 400 4800 1500 1722 30 1048 J 600

Brokk 330 4400 1500 1650 30 760 J 550

Issue 5 - 2008 • Dec 08 - Jan 09 •

PDi 37

“Mama The 90 metre machine is quite an impressive sight on any construction site.

The world has seen nothing like it.

The Dutch crane manufacturer, Rusch Special Products based at Zwaag, just outside Amsterdam, has recently designed, built and delivered a 90 m demolition rig, by far the highest in the world. The machine was ordered by Euro Demolition BV in the Netherlands specializing in demolishing tall structures.

Text & Photo: Mikael Karlsson Jobsite photos: Hélène de Bruijn

38

“With our long experience of building and repairing high mobile crane booms from a large range of manufacturers, we have since the very start been confident that we would succeed to construct a demolition rig this high. But we would never ever have built anything like this unless our client had demanded it. Every new product has to find its market,” says Rusch owner and manager Ruud Schreijer.

“We develop and manufacture only very special products so our clients must be able to pay the full price for all engineering and development. For a small company like us, with some 55 employees, it takes us over a year to build and test a rig like this. We have used 14,000 man-hours for this one, so it has consumed most of our capacity during this year”, he adds.

Practical input valuable Further, Euro Demolition has a lot of knowledge from the practical side of doing high demolition jobs. So even though if Rusch did not know much about demolition when they started in this business some years ago, the practical input from Euro Demolition has been invaluable for Rusch and the learning curve is a very steep one.

The new demolition machine features a three section telescopic main boom mounted on a modified 130 t Caterpillar 5110B mining shovel. The carrier has been modified so much that there is not really very much left of the original machine. For example, it is longer, wider and the tracks have been lengthened by 2.5m.

PDi • Issue 5 - 2008 • Dec 08 - Jan 09

Mia” 90 m!

The hydraulic tank has 1000 litres extra capacity. The ballast is 30 t extra, so the complete machine has an operating weight of around 230t. The new demolition rig has a weight of 69t while the carrier weights more than 150t.

Mr Ruud Schreijer, owner and manager of Rusch.

Crane repairing in the Rusch factory in Zwaag, just outside Amsterdam.

“When it comes to the heavy carrier this is actually good for the stability of the whole machine. On the other hand we have managed to keep the weight down on the rig construction since we use special light, but very resistant, steel that we have used in our mobile crane constructions for a long time, due to their weight restrictions during transportation,” says Schreijer.

Ruud Schreijer also points out that despite the size of Issue 5 - 2008 • Dec 08 - Jan 09 •

PDi 39

Since the complete rig can be carried on one loader, it is enough to use six trucks with low machine loaders to transport the whole machine and attachments from site to site. And it takes around six hours to mount the whole machine with a crane on site.

the new demolition machine the actual transportation from one site to another is not a problem. “Since the complete rig can be carried on one loader, it is enough to use six trucks with low machine loaders. (1x body, 2x tracks, 1x complete boom, 1x counter weight and 1x tools), and it takes around six hours to assemble the machine with a crane on site,” says Schreijer.

New electro hydraulic system

40

Rusch and Euro Demolition have worked together to develop the new electro hydraulic system that replaces the ordinary Caterpillar hydraulics to safely and precisely control boom and tool movements.

“Basically, we have used our know-how in computer software for our mobile cranes and adapted the system for use in high demolition application. Construction wise and hydraulically the rig is working well with no problems. We had some problems with the computer software, which had a reaction time that was too slow for demolition. But we have also managed to fix that now,” says Schreijer.

The weight of demolition tool that the new machine can handle is 5t at 90m and 12t at 80m. To control the movements the operator uses in cab displays with six cameras mounted on the carrier and rig to see the tool movement, boom positions and to have a good rear view.

Rusch has previously built a 60m telescopic high reach demolition rig that was also mounted on a Caterpillar carrier. It was at that time the highest in Europe, which generated Euro Demolition’s interest for an even higher reach machine.

“By combining our know-how and technology of

PDi • Issue 5 - 2008 • Dec 08 - Jan 09

Rusch has a long experience of building and repairing high mobile crane booms from a large range of manufacturers. mobile cranes, excavator and crane repairs we will by the end of next year have built a full range 45, 60, 75, 90m demolition machines. By then we will have a complete range of machines and will see what we can do with all our new experience in the future,” says Schreijer.

www.rusch.to

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Crushtec improves European favourite South Africa’s Pilot Crushtec has updated and improved its Rubblebuster crusher to meet changing needs for rubble recycling, which is often required in European legislation. The Rubblebuster SR500 crusher is the latest version of a machine that has made inroads in Europe and the UK over the past seven years. The Rubblebuster is a complete on-track, diesel-driven, mobile, horizontal shaft impact crusher, capable of handling 30t-to-50t/hr.

According to Pilot Crushtec export sales manager Paul Chappel, the machine was constructed initially for rubble and recycling applications, mainly in Europe and the UK where smaller contractors are required to recycle material and t lowest cost. Rubblebuster enables recycling to take place on site.

“We have made a number of improvements to the Rubblebuster, which will make it more attractive, particularly locally where the recycling industry is gaining momentum,” says Paul Chappel.

The Rubblebuster SR500 is a fully hydraulic-driven machine, with a feed hopper, crusher and discharge conveyor, all in one unit on tracks. The crushing component of the Rubblebuster SR500 is

basically the same as the heavy duty Pilot Crushtec BRO605, which has proved popular in southern African countries for the past 17 years. The electrically powered BRO605 skid-mounted, horizontal impact crusher is one of Pilot Crushtec’s most successful designs for a niche market with limited capital expenditure.

The SR500 updates include:

A belt scraper mounted onto the belt feeder to scrape the material into the crusher. It is mounted on self-tensioning rubber elements.

The belt feeder drive and stockpile drive are mounted on a heavy duty torque arm arrangement to eliminate coupling failures.

A hand pump is part of the closed hydraulic system for filling the hydraulic tank via the return line filter.

The power pack is mounted on a sliding frame, which slides out during mainte-

The RubbleBuster SR500 is ideally suited for smaller contractors that need to recycle material without incurring major expense. nance. No hoses or cables need to be disconnected.

An inertia spin pre-cleaner has been fitted to the air filter intake. This increases the life of the air filter element in dusty conditions.

Both upper and lower impact aprons are of a failsafe design, which means the hammers cannot strike the aprons.

The high torque flexible coupling between the drive and rotor has been selected for its greater operating torque and vibration dampening characteristics.

Extec flies high at Pulkovo Airport Airport, also in Moscow, in 2003 and 2004. Based on the success of these contracts, ROM and its fleet of Extec equipment is now hard at work at Pulkovo airport.

Extec only

A broad range of Extec crushing and screening equipment is playing a pivotal role in the renovation of the Pulkovo Airport near St. Petersburg, Russia. The contract is being undertaken by Recycle of Materials LLC (ROM), the country’s leading exponent of construction and demolition waste recycling and which has extensive experience in the field of airport renovations.

US Concept ROM was one of the first companies in Russia to identify the cost and environmental savings that construction and demolition waste recycling provided. “Back in 1997, I visited Colorado in the US and saw how they were turning waste concrete into a valuable resource. The name of the company was Recycle of Materials,” says founder Andrey Protopopov.

“Later, when I returned to Russia to start my own company, I used the same name and I even invited the American experts over to help me during the initial stages.” Protopopov says that the first two years of the company’s existence were difficult. But, as the growth of recycling 42 PDi • Issue 5 - 2008 • Dec 08 - Jan 09

spread and recycled materials became more popular, he has seen his company’s business boom. Indeed, his company is now seen as synonymous with the processing of demolition waste.

“There is still a huge number of buildings that were built in the 1950s and 60s that do not meet today’s living standards and which were constructed using poor quality concrete,” says Protopopov.

“There is an acute need to get rid of them. We have already demolished more than 100 structures of five storeys or less in and around Moscow alone.

Airport Diversification The success of this demolition programme, coupled with ROM’s recycling capabilities resulted in the company diversifying into the airport renovation business. The company’s first major project was the demolition of runways at the Domodedovo International Airport in Moscow in 2000 during which ROM processed more than 20,000 m3 of concrete. The company employed the same techniques at Vnukovo

Protopopov says that, since 2004, his company has used only Extec equipment to crush screen and recycle the arisings from these contracts. “The Extec C-10+ and C-12+ are the most efficient machines for processing reinforced concrete waste into ballast,” he says. “They are equipped with overband magnets to help remove reinforcing steel from the feed material and they’re also extremely versatile, allowing us to produce all kinds of basic materials from 0 to 100 mm according to the need and application.”

When higher quality is required, the company uses Extec I-C13 mobile cone and X38 and X44 impact crushers. These are supported by an array of Extec S-3, S-4, S-5, S-6 and S-7 track-mounted mobile screens that allow ROM to deliver a broad spectrum of high quality and consistent secondary materials. Protopopov believes that construction and demolition waste has a huge potential for growth in Russia and says that with his fleet of Extec equipment, he is ideally placed to exploit this potential. “It is inevitable that the need for demolition and recycling will continue to increase across the whole of Russia, not only in the large cities, but also in smaller towns and villages,” says Protopopov.

“The amount of available material is huge and it would be a real pity to simply dump it, particularly when we have the equipment required to convert this waste into a valuable resource.”

www.extec.eu

High cycle equipment from German WEKA It is probably impossible to find a concrete cutting company that has not heard about the manufacturer WEKA and used their products. What is perhaps not so wellkown is that WEKA also produces high frequency wall sawing equipment.

The German manufacturer WEKA is very well-known all over the whole world for its production of diamond core drills and wall saws. But WEKA also offers a wide product range of high frequency equipment, with a lot of features, for professional drilling and sawing companies.

(Correction: In PDi issue 4 a caption of the WEKA high frequency wall saw Frida WS75H was mixed up with another manufacturer. The high frequency wall saw Frida WS75H is a WEKA product and nothing else.).

overloads or inefficient cooling.

By three motor speeds and three gear speeds, the torque and speed can be adjusted optimally.

The Mammut SR35 is with 3700 W the most powerful machine for the 230 Volt mains and also the first diamond core drill in its class which is splash waterproof according IP 55.

Core drill JUMBO SR75

The WEKA Frida WS75H The wall saw Frida WS75H has a very powerful, water cooled 11kW high frequency motor. It is controlled by an easy to handle hand control unit, which shows the operator by a red LED when WEKA hand control WS75H. the machine is in the overload range. If this signal is ignored, the control switches the saw off and thus protects the motor.

Also an overload clutch is integrated in order to avoid gear and tool damages.

The motor can be detached from the saw without any tools only in a few seconds, now the wall saw can be easily carried from one place to another.

The frequency converter is a light box, WEKA Mammut SR35. which is completely closed and thus splash water proof according to IP55.

Core drill Mammut SR35

Above the WEKA high frequency wall saw Frida WS75H.

The new JUMBO SR75 offers by the enormous power of 7.5 kW combined with a 3-step gear the required speeds and torques for drilling up to 900mm drilling diameter.

The SR75 with its 9 speeds can be used for a wide drilling range.

Why using universal, high frequency or SR motors?

Basically between a standard three phase motor and the high frequency motor is not a big difference concerning the motor design. Both motors have a multi slotted stator with a three-phase two-pole or four-pole winding and a cage rotor.

The SR motor is a new designed motor generally fitted with a four-pole stator and a four-pole or two-pole rotor.

The universal motor is the most used motor, integrated in devices from a 10W shaver up to a 3500W power tool.

The table below shows the specific details for the different motors.

Further more WEKA offers diamond core drills with the novel switched reluctance technology - the Mammut SR35 and the Jumbo SR75.

In this new technology, the motor consists of a very robust stator and a rotor, which is WEKA Jumbo SR75. only made up of a shaft and steel laminations, which means that there are no turning windings and thus also no commutators Features Universal Motor or wear-affected carbon brushes. The commutaMax. Power 3500 W tion is controlled via the Torque medium power electronic and a micro controller.

Weight medium The thermal protecCooling generally air tion switch measures the temperature of the mo- Degree of protection IP20 tor and thus the motor is directly protected against Expenses for electronic low

Expenses for motor

medium

www.weka-elektrowerkzeuge.de

HF - Motor

SR - Motor

< 25000 W

< 25000 W

medium

high

low

medium

water

water

IP55

IP55

high

medium

high

medium

The WEKA frequency converter WS75H. Issue 5 - 2008 â&#x20AC;˘ Dec 08 - Jan 09 â&#x20AC;˘

PDi 43

Noise problems eliminated by Aquajet on Swedish city centre bridge and tunnel repair The world’s two major manufacturers of hydrodemolition equipment together with one of Swedens hydrodemolition contractors played a vital role on the current phase of Stockholm’s largest concrete repair project. The contractor E-Schakt used Aquajet’s new Ecosilenced Power Pack and six Conjet Robot hydrodemolition machines. The repair project will cost over SEK1billion (EUR106M) and take five years to complete.

Quietly does it in Stockholm’s tourist centre as a new Ecosilence Power Pack from Aquajet makes its debut on extensive city centre bridge and tunnel hydrodemolition projects, beating all expectations.

Aquajet’s new Ecosilence Power Pack is currently being tested on renovation work at the heart of Stockholm’s Old Town and exceeding all expectations, according to Swedish hydrodemolition specialist sub-contractor E-Schakt. The company is undertaking hydrodemolition as part of two adjacent city centre projects, the Three Bridges and the second phase of work for the four-lane Söderleds tunnel. Swedish main contractor NCC is currently restoring Central Bridge, which runs between the Söderleds tunnel and Gamla Stan train station.

The bridge is a key traffic route in Stockholm linking the northern district of Norrmalm and the southern Södermalm. It is 1.2 km long and includes two viaducts over the Söderström and Norrström and has a design capacity for 130,000 cars a day.

The Three Bridges project involves restoring the surface of the bridges, involving a total area of almost 9,000 m2. Built in the 1950’s the concrete bridge deck surface has deteriorated, particularly over a 500 m length in the centre of the bridge.

With the southbound tunnel closed in 2007 for repairs, E-Schakt concentrated on preparing the dual carriageway’s righthand lanes, using hydrodemolition techniques and the new Aquajet Power Pack for the centre 500 m and water jetting the remainder.

In June 2008, the second phase began on the inside lane of the city bound dual carriageway. The Aquajet robot is removing concrete down to the first level of rebar on the bridge deck, to a depth of between 10-30mm. Phase 3 is scheduled in 2009 to repeat operations in the southbound carriageways.

The Söderled tunnel Work inside the 1.85 km northbound Söderlends tunnel, in a separate contract for NCC, involves resurfacing both the wall impact protection concrete slabs and the roof. The 600 mm high concrete

44

PDi • Issue 5 - 2008 • Dec 08 - Jan 09

wall on both sides of the tunnel is being stripped to a depth of 10-30 mm where it has been damaged by stones and salt.

The tunnel roof is water blasted at 1000 bar to clean and remove up to 2 mm of concrete to make ready for the application of fire protection.

With repairs in the 750 m southern part of the southbound tunnel completed in 2007, including the addition of fire protection, work started on the northern half of the tunnel in June 2008 in a 12 week contract throughout the summer months.

During the rehabilitation operation, including hydrodemolition works, the southbound traffic tunnel remains closed to traffic, with the northbound tunnel configured for two-way traffic flow.

Noise control and fuel savings The Ecosilence Power Pack’s performance is very much appreciated on the bridge as its noise level is less than half that of conventional power packs. “This is a key factor for us,” says E-Shakt project supervisor Andreas Nordström. “Its operation on this city centre project has been so quiet. It’s a real city machine.”

Use of Ecosilence also achieves a substantial reduction in fuel consumption compared to conventional power packs, saving an estimated EUR35,000 a year in a typical operation. Traditional power packs use between 105 l/hr and 120 l/hr. Ecosilence’s design means a saving of up to 30 l/h when producing a water output of 200 l/min at 1,000 bar and 1500 rpm at just 70% of its full power capacity. This compares with competitive units

operating at 100% for 200 l/min at 1000 bar and 2100 rpm to achieve the same output.

According to NCC project manager, Mr Halvarsson, “Hydrodemolition was specified for the work on the bridge and tunnel because jackhammers cause too much disturbance. With hydrodemolition you don’t damage the concrete and you also have a better surface to work with. There is also no possibility of causing any cracks, whether micro-cracks or bigger ones. Another advantage is that the water jets also get right under and behind the rebar. There will be a lot more of this kind of restoration using hydrodemolition taking place in Stockholm in the next few years.”

“The popularity of hydrodemolition is now growing worldwide,” adds Aquajet Systems sales and marketing manager Jan-Åke Petersson. “In Sweden and other Scandinavian countries, no other form of demolition is permitted for repair works and it is also now being recommended in various German states. In addition, a new EU Standard is expected next year and we believe it will push hydrodemolition forward.”

Conjet’s vital role in major tunnel and bridge repairs The hydrodemolition technique, which uses high pressure water jets to remove damaged concrete from various structures, is playing a crucial role in the major restoration of the vital and adjoining Central Bridge and Söderled Tunnel in the centre of Sweden’s capital Stockholm. Six Conjet Robot hydrodemolition machines have been working on the current phase of Stockholm’s largest concrete repair project, which is estimated will cost over SEK1billion (EUR106M) and five years to complete. The Stockholm City Traffic Office initiated the extensive repairs, which includes the removal, by the Conjet Robots, of the concrete surface from the ceiling and lower parts of the salt damaged tunnel walls, and removal of the bridge’s salt damaged concrete deck, followed by replacement with fresh concrete.

One of Stockholm’s main ”blood streams” The 1,550m dual two lane rectangular box Söderled Tunnel and connecting dual two and three lane Central Bridge are a vital 2.6km long link in the north south Stockholm traffic artery. Around 85,000 vehicles every 24 hours travel through the two adjacent north and southbound box tunnels and about 128,000 use the bridge. A comprehensive inspection in 2000 of the two adjoining structures revealed water leakage in the tunnel roof and serious corrosion of the concrete reinforcing in the low part of the tunnel walls and on the bridge’s concrete deck, primarily due to de-icing salt sprayed by passing traffic. Stockholm City Traffic Office embarked in 2005 on a comprehensive programme of repairs and modernisation, which included a new fire protecting sprayed concrete lining in the tunnel soffit, sacrificial precast concrete panels along the base of the tunnel walls and upgrading the lighting, ventilation and sign boards.

In addition the Central Bridge’s concrete deck is being repaired and strengthened and central crash barrier replaced.

To minimise traffic disruption as much as possible Stockholm City Traffic Office opted to phase the repairs over a five-year period, but only during the 13 summer weeks, between June and September, when traffic flows are down by about 15% to 20% from normal.

One of the Nordic region’s largest contractors NCC Construction is the main contractor while Stockholm based E-Schakt , one of Sweden’s leading hydrodemolition specialists, is using the technique to perform all the concrete removal on the bridge deck. The company is also working as the specialist hydrodemolition subcontractor for NCC removing the damaged concrete lining from the tunnel walls and ceiling. In addition E-schakt is also repairing the concrete deck on the Central Bridge.

Stockholm City Traffic Office this summer focused on renovating the 850m northern stretch of the north bound Söderled Tunnel, following completion of the southern section of the same tunnel last summer. The northbound tunnel was closed to traffic, which was temporarily diverted through the southbound tunnel, during the round the clock restoration. E-Schakt, working two 12 hour shifts used its smallest Conjet Robot 322 and larger Conjet 362MPA and very latest Conjet 364MPA, both with Multi Purpose Arms for high reach and fitted with the optional hydraulically driven rotor head, which is ideal for scarifying and preparation of concrete surfaces. The 322 was fitted with a single nozzle, which was modified to reach below road level and into the channel at the base of the tunnel walls.

High pressure water was supplied from three separate Conjet Powerpacks to each of E-Schakt’s three Robots at a pressure of around 1000bar and flow of 200litres/min. The larger 362MPA and 364MPA Robots were reaching up and working directly above on the tunnel ceiling with the rotor heads removing between 5mm and

10mm of the concrete, leaving a rough and textured micro crack free surface for bonding on the new fire repellent overlay. At the same time E-Schakt used its smaller Robot 322, with single water jetting nozzle, to selectively remove just the salt damaged areas of concrete along the base of the tunnel walls. Depending on the intensity of the chlorides from the de-icing salts the 322 removed concrete in an approximate 1m high swath to a variable of depth of between 30mm and 70mm and in some cases exposing and cleaning the rust from the reinforcing steel.

Excellent performance During this summer’s phase E-Schakt had to prepare about 10,000m2 of the tunnel’s damaged concrete surfaces with its Conjet hydrodemolition Robots. “Hydrodemolition was specified

by Stockholm City Traffic Office for this project,” says NCC project manager Hans Qvarnström. “E-Schakt, with its Conjet Robots, has done a very good job and finished all the hydrodemolition by the middle of July. We worked round the clock to a very tight programme, the tightest schedule of any project that I’ve been on, and finished on time by the middle of September.”

On completion of E-Schakt’s hydrodemolition NCC followed on spraying a 35mm thick porcelain impregnated fire retardant concrete lining to complete the soffit restoration. On the prepared tunnel walls NCC sprayed an approximate 60mm thick layer of stainless steel fibre reinforced concrete, followed by a covering of abutting 2m high, 4m long precast concrete sacrificial panels, which can be individually and easily replaced in case of any future salt corrosion.

At the same time E-Schakt’s team used the same hydrodemolition technique on the adjacent Central Bridge removing damaged concrete from the deck, which had also been corroded by de-icing salts. Here E-Schakt used a further three of its Conjet 322 Robots, initially fitted with rotor heads removing and scarifying the concrete surface, which also enabled E-Schakt to identify the worst areas to go deeper. The rotor heads were then replaced with single waterjetting nozzles for the deeper concrete removal. Working at similar 1000bar pressure and 200litres/min flow, each Robot, supplied by its own Conjet Powerpack, then selectively removed only the areas of damaged concrete to a depth of about 70mm to 80mm and exposing the reinforcement.

After E-Schakt’s hydrodemolition, which leaves a very uneven and textured surface, the deck was replaced with 45 MPa bridge concrete, using the rough micro crack free surface as a key to bond on the new concrete overlay. The new concrete deck was then covered with a waterproofing membrane prior to a final asphalt base and 50 mm wearing course topping for a return to traffic. E-Schakt

and NCC completed this summer’s restoration to part of the Central Bridge and Söderled Tunnel by the middle of September. They will return again summer 2009 for the next phase and finally complete the restoration and upgrading of the two vital structures by the early autumn of 2010.

Issue 5 - 2008 • Dec 08 - Jan 09 •

PDi 45

John F Hunt checks into Gt Ormond Street hospital John F Hunt Demolition’s recent demolition project at Gt Ormond Street hospital in London. The demolition, at the rear of the hospital, will make way for the new 10 storey, £70M state of the art Morgan Stanley Clinical Building and is part of the second phase of a major redevelopment programme. The company had to first saw the buildings to be demolished away from the structures left behind to prevent transfer of noise and vibration during the main top down demolition.

The UK specialist demolition contractor John F Hunt Demolition has had to use quite unconventional techniques since checking into the Great Ormond Street Hospital for Children in central London in March. The company was prevented from using traditional hydraulic breaking methods due to the site’s proximity to sensitive treatment areas within the World famous complex. Instead a combination of noise, vibration and dust free techniques were combined to effectively dismantle the various structures piece by piece.

Silent demolition methods interact John F Hunt Demolition’s site team is using a variety of track and wheel mounted wall and floor saws, core drills and excavators fitted with hydraulic concrete crushers to dismantle the reinforced concrete framed buildings complemented by a 20t capacity Wolff tower crane. The company’s contract involves the removal of six of the hospital’s older buildings with two of them up to 10 storeys in height and includes the Barrie and Southwood ‘A’ Wing, the Nurses Home Annexe and Cardiac Unit Link Bridge. The demolition, at the rear of the hospital, will make way for the new 10 storey, £70M state of the art Morgan Stanley Clinical Building. It is part of the second phase of a major redevelopment programme, which is largely being funded through donations to Great Ormond Street Hospital for Children’s Charity.

The first phase was completed in March 2006 with the opening

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PDi • Issue 5 - 2008 • Dec 08 - Jan 09

of the new Octav Botnar Wing.

“We are working as the main demolition contractor for the NHS Trust’s principle project manager and consultancy Gardiner & Theobald Management Services and our contract dictates that we cannot use any methods that would create noise, vibration and dust, as we have to demolish some structures that are physically joined to the hospital’s other occupied buildings,” says John F Hunt Demolition site manager Scott McCue. “This restriction prevented us from using the normal method of hydraulic breakers mounted on excavators. We opted instead to use wet cutting saws and hydraulic munchers and crackers, but needed to prop between the floors and take the buildings apart one floor at a time, working from the top down.”

Each of the buildings are in turn first cocooned in scaffolding and clad in monarflex sheeting, prior to installing a forest of props from floor to ceiling at each level. Additionally, to lessen and or completely eliminate the structural transmission of any noise and vibration from one structure to another, the project buildings were physically separated from the occupied and retained prior to any works commencing.

The separation was achieved by predominantly track sawing using 1000mm diameter diamond blades lubricated with water and running on tracks bolted in turn to the floors and walls. The cycle of fixing and sawing a 2m section takes about 45 minutes and is continued and repeated round the vertical periphery of each storey until complete separation of the two parts of the entire

building, from top to bottom is achieved. The cantilevered floor slabs left at the separation interface are temporarily propped.

The project has been additionally complicated by the necessity to remove the previously redundant heating system, which comprised panels of asbestos encased heating coils that had been integrated into the underside of the 300mm floor slabs.

Conventional hand held breakers were prohibited so the team devised a simple system to remove the panels intact, complete with the slab, again using a combination of concrete sawing, propping and lifting. The layout and strategic positioning of the maze of props has been designed in house by John F Hunt’s temporary works team to accommodate the location of the heating coils and critical position of the saw cuts enable the complete panels to be lifted clear and disposed of whole.

Depending on the location and area covered by the heating ducts, floor sections up to 4m by 2m, and weighing about 1.5t, are sawn and cut out whilst supported on the underlying props. Holes are then core drilled through the cut section of the slab to attach slings for lifting out by the tower crane. Any exposed asbestos is carefully covered and sealed prior to placing the section of floor directly into an ISO skip container at ground level.

From top to bottom Demolition of the remaining structure is achieved using 5t mini excavators equipped with hydraulic shear attachments. These are also moved from floor to floor using the tower crane and used to quietly dismantle the interior and exterior walls. Constant attention to spraying the structure with water has succeeded in virtually eliminating the nuisance of dust. The dampened rubble is placed in skips on the floor and when full, lifted by the tower crane and tipped into containers at ground level.

The floor sawing and wall removal are carried out simultaneously and the whole top down sequence is repeated floor by floor to ground level. Dismantling of the scaffolding also follows on behind demolition of each floor.

At lower levels two Komatsu excavators from the company’s extensive plant fleet, and equipped with hydraulic attachments,

are used to dismantle the lower floors and walls within their reach and load away the resultant debris for off site recycling.

“It is a condition of the demolition contract that no percussive methods of demolition, such as jack hammers or pneumatic attachments, are allowed due to the close proximity of live wards as the demolition is right in the centre of the hospital campus,” says Gardiner & Theobald Management Services site project manager Lee Houghton. “So we’ve asked for specific methods of deconstruction, such as pulverising, munching, core drilling and saw cutting. We said to the hospital that there will always be some noise during the demolition, but have chosen what we believe to be the quietest methods. There are noise restrictions of 75dBA at 1m from the existing buildings and we have noise monitors to check this. There has been the odd occasion when we’ve exceeded this level, but that’s only been for an instant rather than a continuous problem. The contractor has performed well and their guys on site have been very sympathetic to the hospital’s strict restrictions. They have worked closely with us and the hospital, advising well in advance of any potentially noisy operations. So far we have had very few complaints about noise.”

The final structure to be dismantled is The Cardiac Link Bridge and for this task John F Hunt will bring in one of its Brokk demolition robots equipped with a concrete crusher. The Brokk will be used to first ‘skeletonise’ the structure back to its basic components and thereafter the structural members will be cut and lifted clear using the site tower crane. During the entire dismantling process, pedestrian access under and adjacent to the Cardiac Unit building must be maintained. John F Hunt is therefore paying great attention to the design and careful erection of a double layered, protective scaffold tunnel to facilitate the necessary pedestrian access required by hospital personnel and staff.

John F Hunt Demolition, based in Grays, Essex, completed the dismantling of the six structures by the end of October 2008. Contractor HBG UK will then follow on with its design and build contract and make a start on the replacement 10 storey Morgan Stanley Clinical Building, which is scheduled for completion at the end of 2011 and occupancy early in 2012.

Issue 5 - 2008 • Dec 08 - Jan 09 •

PDi 47

Best dealer “per capita” Demolition and excavating equipment is sold all over the world. It does not matter where the source is you can find Trevi Benne equipment on the other side of the globe. Trevi Benne’s West Indian dealer Denis Clément and his company Caraibe Transfert is a good example of that.

Denis is an adventurer. He did what many want to do, but are scared of the consequences. He left a safe job 17 years ago as a salesman of industrial products at a large French company for the warmth and gentle atmosphere in the sunny island of Martinique.

Escaped the stress in Europe “I had a great job in France. I made good money and my career pointed straight forward and up. But my life only revolved round work, working day in and day out, seven days a week. What kind of life is that in the long run,” says Denis.

The daily life in Paris, where he lived with his family, was stressful. He expressed his feelings to a friend who lived in Martinique and suggested Denis should make a radical change and move to the island. He did not take long to decide and Denis and his family took the big step and moved to a new life in Martinique. “I have now been here for 17 years. For sure it is undoubtedly a different and better life, but it is not that we sit in a chair under a tree looking at the ocean all day. If you want to survive and succeed you need to work here as well. But it is another speed, a good speed, compared to the hectic life in Paris,” says Denis.

Set off for Italy At first Denis hoped to sell the same type of industrial products in Martinique as he sold in France, but the transport costs were too high to start importing these goods.

Instead he made contact with an Italian living in Martinique who set his mind on selling excavators and excavating equipment. During a trip to Italy looking for Italian products to import to Martinique he made contact with Trevi Benne who appointed Caraibe Transfert as its agent in Martinique. “The area that Denis covers is maybe not big, but it has a lot of contractors and Denis is an efficient

Denis Clément is an excellent dealer for Trevi Benne in his new home country Martinique. He has even learned Italian fluently in order to speak more freely with his suppliers.

sales representative. We have never doubted that,” says Trevi Benne marketing manager Christian Tadiotto. “Denis is today our best dealer in the world based on per capita.”

Trevi Benne’s products were a good start for Caraibe Transfert. The company now sells the whole range of Trevi Benne equipment and the strongest sales are in different types of buckets. There are not many demolition contractors in his territory, but demolition and recycling attachments are sold to general building and excavating contractors. Martinique is a comparatively small island

with a population of around 400,000 and is not a big enough market on its own. So Caraibe Transfert also has extensive sales to neighbouring island Guadalupe and some other islands as well as French Guinea and Surinam on the South American continent. “With this market territory we have a good annual turn over and have well over 200 customers and sell a lot to excavator dealers like Hitachi, Hyundai and others. Some 60% of the sales refers to Trevi Benne products and the remaining 40% Mostly equipment from OM-Track,” says Denis.

Besides Trevi Benne products Caraibe Transfert also represents the Austrian manufacturer of recycling crushers Rubble Master as well as the Italian manufacturers OMTrack, Rozzi and Romea.

No plans to return Denis has no regrets leaving France for Martinique, even though life has been harder then he expected. “To have a good life here takes a lot of work, just the same as in Europe. But the pressure is not the same. I will never leave this place. I love it”.

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PDi • Issue 54 - 2008 • D Oec ct 08 - Nov - Jan 09

Denis Clément (middle) with some of his colleagues at Trevi Benne. From the left Massimo Ballo, Sales Manager, Luca Vaccaro, President, Christian Tadiotto, Marketing Manager and Maurice Van Kesteren, Sales Manager.

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Wanty demolishes old steel factory in Belgium Wanty, one of Belgium’s most important companies in the working field of demolition and road construction, is demolishing an old steel factory in Clabecq near Brussels to make way for housing, industrial and recreational development. Wanty has so far been working for over seven months on the demolition of about 50,000m2 of building and expects the project to last for two years. For the demolition Wanty is using the large FRD F 100 breaker. The old iron and steel factory with three furnaces, was founded soon after World War 1, but closed down in 1986. After the clean up and removal of 200,000 t of polluted ground Wanty was able to make a start on demolition of the factory. Wanty is using a large FRD F 100 breaker attached to an 85t Hitachi excavator.

“The work on the old factory is progressing at a rapid rate thanks to FRD’s F 100 breaker,” says Wanty head of materials services Mr De Martelaere.

“For seven years now we work with FRD breakers and other demolition equipment. First we bought the F 27 breaker. This hammer has been working nonstop for seven years and the hammer has not yet been open for maintenance. We have never experienced this with hammers from other manufacturers. Of course we replaced the parts that wear out, like the front bush and the chisels.

And we check the nitrogen in the hammer before we start with a new job. We are very curious to learn how long we can use this F 27 breaker before it will need its first service check up.”

In total Wanty have 22 FRD breakers at work without any problems. The company has grown rap-

idly in recent last years. Professional equipment and professional support are therefore very important.

FRD’s distributor for the Benelux, Saes, provides Wanty with l support. “We have good experience in recent years,” says De Martelaere. “We can do business together very well, the price is right and their service is also excellent. When parts are worn out we receive spare parts very quickly.”

Recently Wanty bought its third F 100 breaker

FRD crusher working for K&S Building materials recycling company K&S from Büttelborn in Germany recently used for the first time its new FRD VS 30 FT secondary crusher for recycling work in Büttelborn. Recyclable materials produced from road and building demolition have mainly been reused in low quality applications in road construction and civil engineering works. Depending on the reuse being required by regulations and the producer’s product responsibility, materials from site could be reused on a relatively high level.

To meet these requirements the recycling process has become elaborate and very expensive.

First the building materials must be grouped, then breaking, cleaning and filtering transforms building materials to mortar and grit in different ranges to be used again. Building materials made

50

of mortar and larger than 900mm should be pulverised before the recycling process can begin.

Reason enough for K&S building materials recycling manager Alexander Maisinger, to use FRD’s new VS 30 FT secondary crusher for his work in Büttelborn. “FRD has convinced us,” he says.

This VS 30 FT is much bigger than other comparable crushers and can easily crush bigger pieces of stone or asphalt. The crusher has an operating weight of 2,650 kg and an opening width of 1,030 mm. With a crushing force of 1,050 kN and a cutting force of 2.060 kN the device can be used for the tough work. Longer steel sections can be easily cut because of the cutter length of 240 mm.

PDi • Issue 5 - 2008 • Dec 08 - Jan 09

for the demolition of a second old steel factory in Charleroi to be replaced with a new electric power plant. For this project Wanty has to demolish, clean and recycle a surface of 70.000 m2. The steel and concrete foundations have a depth of around 4m.

Here four FRD breakers, two F 45 and two F 70 breakers, are working 10 hours a day, seven days a week. Soon a fifth FRD hammer, the new F 100, will be working on this project.

Clearing the way for a luxury hotel Based on Atlas Copco and Brokk technology one of the most demanding reconstruction projects in Stockholm’s history will be completed on time.

Two famous mills in the Saltsjoqvarn area, the Red Mill, built in 1889 and the Semolina Mill, built in 1920 are being converted into luxury apartments and a hotel. This project requires maximum care during planning and construction as the shells of the buildings have to remain unaltered, due to their historical value.

Starting in June 2007, the Rivners AB company accepted the challenge to gut the mills. One of the most delicate tasks had been the demolition of the giant cereal silos measuring 25m x 15m x 30m.

Another demanding procedure was the demolition of the roof. The roof was taken apart in sections and lowered down by a 14t capacity crane. Once the roof had been removed, the floors were dismantled. Hugh beams were cut away and lowered down about 20m. The Brokk 90, equipped with an Atlas Copco SB 150 hydraulic breaker were the key to project completion. Thanks to its slim body and low weight it was easy for the operator to pilot the Brokk 90 through the narrow limited spaces inside the mill. The new luxury hotel will open in September 2009.

Diamond Award is up for grabs There is not long to wait before the top three winners of Diamond Award 2009 are announced in the world’s gambling capital Las Vegas, USA. The competition for the best concrete cutting and drilling projects has already entered its final stage. With the 31 October deadline for entries moving rapidly into the past, the award committee is now busy with an arduous task of processing job stories filed by the contractors from all over the world. PDi’s Andrei Bushmarin gives an overview of the 2009 Diamond Award 2009.

Text: Andrei Bushmarin Photos: Daniel Trachsel

The contest attracted 19 entries from 18 companies, which are on the IACDS website. In the face of the global economic meltdown, when “how-we-can-tackle-the-crisis” has become the most engaging topic of our everyday conversations, it is a truly reassuring sight to see that the competition has not lost its appeal and contractors are still lined up for the trophy race. The Diamond Award 2009 incentive package includes airfare and accommodation for representatives of the companies that make the top three.

Fifth award run “Diamond Award”, which was conceived by Horst Wapler of the German “Fachverband Betonbohren und-Sägen” almost nine years back, now sees its fifth run. Before the IACDS took up the baton of organizing this professional contest in 2007, it was the German association that had regularly staged it. Its conditions have not changed much since the time the first awards were presented at BeBoSa 2000. The association’s expert panel evaluates all entries by four basic criteria: planning and complexity, degree of difficulty, innovation and quality requirements using a 1 to 10 points system. To be eligible for a prize, an entry should score high in every category. Following an established tradition to confer the Diamond Award at the world’s largest trade fairs like BeBoSa and Bauma, this time around the final showdown is scheduled to take place at the World of Concrete show in Las Vegas on 4 February, 2009.

Let’s talk statistics The main purpose of this report is to provide a statistical overview of Diamond Award 2009 as an event, which reflects the current state of development of the concrete cutting industry. Considering it in geographical terms, the Americas and Europe account for 16 entries, each mainland providing an equal number of 8 entries. Asia is represented by two Japanese companies, while Africa mustered one entry. Given that it is the first time an African contractor has participated in a competition dominated

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PDi • Issue 5 - 2008 • Dec 08 - Jan 09

by European, American and Asian firms, the bold and long awaited initiative of the Egyptian company Market Leaders is highly laudable. Australia and New Zealand are conspicuously missing from the list of contenders. The zero turnout seems especially inexplicable consider the strength of their national association, with many resourceful and innovative contractors.

Country wise, the USA topped the list with 5 contributions, followed by the UK, which provided a grand total of 3 case studies. One entry came from Japan, Germany and Mexico, Austria, Canada, Italy, Russia and Egypt. Adra Tecnologia en Servicios from Mexico, was the only contestant to submit two projects for the award. It is another trophy hopeful, however, that we have to watch out for.

The prize-winning Tondin S.R.L. from the Italian town of Gazzo has now bagged a handful of Diamond Awards.

Tondin won the 2004 contest and took second prize in 2007. This year they came up with a complex project of consolidation of the foundation of Loggia Palace in Brescia, which entailed some innovative drilling. We will soon know if the Italians can continue their winning streak into the 2009 event.

As one can see from the entries, the contributions which involve an array of concrete cutting, drilling and crushing techniques, prevail over ones where just one method, largely core drilling, is described. Only four companies,- Taylor’s Concrete Cutting Services from the US, OLVEX from Russia, and Italian Tondin from Italy and Seidl from Austria placed their bets on the exclusive coring projects. The combination of wire sawing and core drilling is seen as winning in more senses than one by four contenders. It is evident that many contractors tend to use wire sawing, as the most versatile and imaginative technique currently available, to tackle challenging concrete cutting projects. Flexibility of this method allows for a broad scope of applications. For instance, the contributions from Adra Tecnologia en Servicios and the USA’s Minneapolis Concrete Sawing and Drilling detail underwater wire sawing operations, whereas German company Norbert Braun GmbH presented a case study, which dealt with remotely controlled wire sawing at a nuclear power plant.

Wire sawing may be complemented with other concrete removal methods or else can be used as a stand alone technique, which was exemplified in the UK’s Drill Cut and Soft Cut entries. Two companies lodged contributions describing multi-technique projects. Bohrtechnik Westerwald from Germany completed a job on the foundation of a rolling mill to a 120 hour deadline using a range of

concrete sawing techniques, while the American Holes Incorporated employed nearly all known methods, except for wire sawing, to demolish a storage warehouse damaged by a tropical storm. Another distinct trait of the modern concrete cutting business is an increasing tendency to use robotic demolition machinery and concrete scanning technologies like GPR in addition to conventional techniques when handling complex jobs, which was illustrated by Alabama-based ABC, Robore Group from Great Britain and the Egyptian Market Leaders.

If we try to assess how big the field of application of concrete sawing techniques is, using Diamond Award contributions as a reference point, we notice that it is practically unlimited. Specifiers range from steel mills, hydro and nuclear power plants to bridge and marine contractors.

Concrete sawing helps successfully solve eco-sensitive projects, which was again proven by a few contestants. Ancient monuments and beautiful palazzos get a new lease of life, buildings and facilities damaged by natural or man-made disasters get fully restored, not least thanks to concrete sawers and their cutting edge techniques. PDi wish all contestants good luck, and whoever wins, it will not be just the winners who will gain from their victory; it is the entire industry that benefits from networking for which such an excellent vehicle as “Diamond Award” was devised. The number of sponsors that have realized the positive business ramifications of supporting “Diamond Award” increases from competition to competition, and this is yet another sign of its worthiness and relevance.

All entries and the list of sponsors are accessible at: www.iacds.org/diamondaward.

The winners of the Diamond Award 2007 (from the left): Xaver Angerer, Angerer GmbH from GarmischPartenkirchen, Germany, winner of the third prize; Norikazu Shibuya representing Komu Ltd from Hiroshima, Japan, winner of the first prize; Tiziano Tondin, Tondin S.R.L, from Gazzo, Italy, winner of the second prize.

From the left Norikazu Shibuya, Pat O’Brien, President of IACDS and Horst Wapler from the German Association who took the initiative to the Diamond Award.

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Credit Where Cre PDI’s Mark Anthony has been a long-time critic of the European Demolition Association. But, judging by its recent seminar in Istanbul, the EDA is at last showing the levels of commitment and professionalism that it requires if it is to restore its credibility.

Text & Photo: Mark Anthony

In all walks of life, there are organisations and bodies that are simply ripe for ridicule: national tax collection agencies, the European Parliament, and the US Government to name but a few.

Until recently, the European Demolition Association would have fallen neatly into this category of supposedly well-meaning but ultimately ineffective organisations. A trade federation that was started with high hopes of promoting best practice by a continent-wide sharing of information has latterly been a shadow of its former self; a top-heavy and rudderless ship burdened by bureaucracy and wounded by in-fighting; a travel club for the industry elite. But judging by its latest seminar, any talk of the association’s demise is premature in the extreme.

It is strange to report positively on a seminar with an attendance that was almost two-thirds less than its previous gathering in Rome. However, those that chose to stay away missed a seminar and conference that harked back to the association’s “Golden Age” around 20 years ago.

The decision to host this latest event on the banks of the Bosphorous in Istanbul, Turkey, where Europe ends and Central Asia begins, was bold and inspired. Certainly, a shift away from traditional central European venues impacted upon delegate numbers, and those that did make the lengthy journey were greeted with poor infrastructure and levels of traffic that are the hallmark of emerging countries. But even the loss of some sponsors’ promotional materials within the interminable Turkish immigration system could not detract from a conference with some excellent content, some fiercely fought debates, and a round table session that showed signs of how things might be if the new Secretariat is given the backing it so richly deserves.

The “high reach” subject The first item on the seminar agenda – and which seems to have become almost a permanent fixture in recent years

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PDi • Issue 5 - 2008 • Dec 08 - Jan 09

– was the ongoing discussion over the EDA’s proposed guidance on the use of high reach excavators in a demolition environment.

As a member of the National Federation of Demolition Contractors’ publications team and a co-author of the guidance produced by the UK’s National Federation of Demolition Contractors, it remains my personal contention that the EDA should have merely adopted this established and well-received guidance across Europe. However, in the interests of balance, I will not include my thoughts here (anyone wishing to view a transcript of my presentation can find it at http://tinyurl. com/6y4rjz.)

Instead, I will focus upon the key findings detailed by Stefano Panseri, a member of the EDA’s technical commission and which are based on a round-table discussion during the last EDA seminar in Rome. These discussions used the NFDC’s own guidance as a starting point but delegates were asked for their opinion on how this guidance might be improved or enhanced.

One of the key questions – what constitutes a high reach machine – demonstrated just how quickly this market is moving. When the NFDC created its original version just over two years ago, a 30 m machine was considered huge and the Federation therefore set the high reach benchmark at 15 m.

Just two years later, and a 90 m machine is already inexistence; the EDA, therefore, proposing a 20 m lower limit.

Although not yet required by law across Europe, the second key question looked at the need for a risk assessment detailing the work to be carried out by a high reach excavator. This question was greeted with a unanimous YES vote, a fact that underlines the demolition industry’s willingness to self-regulate without the need for Government or regulatory intervention.

Rather less unanimous was the answer to a question relating to the frequency of high reach operator training.

Half of all those surveyed believed that specific, annual high reach training to be adequate; 25 % wanted training to take place at six month intervals; the remaining 25 % pushing for three month training intervals. It is pleasing to report such an enthusiasm for training, even though there is still a worrying lack of available high reach excavator training across the European Union.

Participants reunified on the question of visual machine inspections with 95 % demanding daily inspections as the EDA standard.

Less clear cut was the question of the length and width of the excavator’s tracked undercarriage. Around 60 %of participants insisted that high reach machines have longer tracks while 83 % requested a longer undercarriage. Interestingly, the question of machine stability during operation was again up for discussion in Question 13: should a high reach machine Below the EDA secretariat.

be used for lifting duties? Stefano Panseri rightly pointed out that this decision is normally based upon local regulations covering the use of excavators working as cranes. According to the EDA’s findings, 73 % of participants said that a high reach machine should not be used as a crane. Although it is this figure that will find its way into the EDA’s guidance notes, it is surprising that more than a quarter of participants considered this practice to be acceptable.

The Demolition Awards Another key item of discussion, although hardly technical, was the launch of the Demolition Awards. Endorsed by the EDA, these “industry Oscars” are scheduled to take place in Amsterdam in November 2009 and they will provide an ideal opportunity for demolition professionals to highlight their expertise on a global stage. Further details on the specific awards and how to enter can be found here: http://tinyurl. com/nfdc0001.

Demolition-specific training Demolition-specific training is now a subject of much discussion across Europe and it was pleasing to see it taking its rightful place as a key discussion point in Istanbul. John Woodward, newly elected as vice president of the Institute of Demolition Engineers, highlighted the strides made in the UK by the NFDC and the National Demolition Training Group (NDTG). Presentations from French and Spanish delegates suggested that although the UK may have set the European benchmark, other countries are now catching up fast. Equally impressive was a presentation by Henrik Bonnesen of Danish company COWI who detailed the intensive training provided by a residential training centre established by the Danish demolition association.

However, the standout message from the latest EDA seminar was not one of training but of an eagerness to learn.

In addition to the usual suspects from the UK, France, Italy, Denmark and Spain, the seminar attracted presenters and delegates from as far afield as Belarus, Poland and of course Turkey. Cultural and geographic differences aside, these delegates all share one common factor – An eagerness to learn from countries with a more advanced and mature demolition industry.

As we stand on the precipice of economic recession, many contractors are beginning to look further afield to maintain their workload levels. Those seeking to exploit cross-border opportunities will almost certainly do so via a joint venture with a local company. Based upon the EDA’s seminar in Istanbul, there is currently no better vehicle to foster such partnerships than the European Demolition Association.

www.eda-demolition.com

The logotype of the Demolition Awards to be held next year in the Netherlands.

edit’s Due

Stefano Panseri from Italy.

John Woodward from the UK and below Hnerik Bonnesen from Denmark.

Issue 5 - 2008 • Dec 08 - Jan 09 •

PDi 55

CSDA release best practice document:

Hydraulic Concrete Cutting Equipment

The US Concrete Sawing & Drilling Association (CSDA) regularly provides proactive Best Practices for sawing and drilling contractors and develops tools, techniques and procedures to help them deal with issues crucial to growing and maintaining businesses. A new Best Practice document is now available entitled Hydraulic Concrete Cutting Equipment (CSDA-BP-006), which is the 22nd document produced by the CSDA. The 15-page Hydraulic Concrete Cutting Equipment Best Practice (CSDA-BP-006), produced by the Standards and Specifications committee, is intended to provide information on general maintenance, differing design options and troubleshooting guides. The information contained within this document can help cutting contractors obtain increased levels of efficiency and lifespan from their equipment, as well as ensuring against potential faults and hazards associated with these types of hydraulics.

Some of the items addressed in CSDABP-006 are horsepower ratings, cleanliness and filtration, hydraulic fluid, pumps and motors, aeration and fittings, piping and costs associated with hydraulic leaks. The document also features a Hydraulic Troubleshooting Guide that provides solutions to several possible problems that can occur when working with this type of equipment.

By following the safety advice and procedures in this document, and taking heed of the warning notices given, cutting contractors may be better prepared for any incidents of malfunctions encountered while utilizing hydraulic concrete cutting equipment. It also will assist in identifying and correcting possible faults or malfunctions, reducing down-time and potential accidents.

CSDA Standards and Specifications Committee Chair, Mike Orzechowski, explains why this Best Practice is of particular importance to cutting contractors. “Cutting contractors are frequently looking for and utilizing new, stateof-the-art equipment and techniques for getting their jobs done quickly and safely,” he said. “The CSDA Best Practice documents help in spreading their knowledge base across this industry.

This Best Practice document does a good job in summarizing a vast amount of practical working knowledge of hydraulic systems specific to our concrete sawing and drilling industry.”

www.csda.org

Amidst economic uncertainty, signs of growth and opportunity for US CSDA members With the universal appeal and use of the Internet, coupled with the success of the CSDA website, the Concrete Sawing and Drilling Association

56

developed a short survey during the summer of 2008 to begin to compile operational and economic data on a regular basis. “Historically the sawing and drilling industry has been somewhat reluctant to divulge such information”, said Patrick O’Brien, executive director of CSDA.” “But the response rate was extremely high.” Thirty percent of contractor members responded while 20 % of manufacturer members responded. The quantity and quality of the information provided by members far exceeded expectations.

The responses from contractors show optimism. Approximately half expect to purchase new equipment during the coming year and add new services. A healthy percentage stated they will increase expenditures for advertising and be adding equipment for ground-penetrating radar, demolition (soft and hard) and surface preparation. A smaller number said they will expand their current list of sawing and drilling services by adding wire sawing, so it would appear that there is also growth expected in the wire sawing market. 71% of the contractor respondents said they are experiencing increased productivity in their operations, with half that number believing that increased levels of training have contributed to that growth, while 36% believe it was because of better equipment. The majority of contractors believe they will be able to increase their prices by no more than 5%, and the geographic areas that will be impacted the most by decreasing prices is the Southeast.

With regards to cost of operations, the main and obvious concern is the cost of fuel, followed by labor. 60% believe they will see a rise in fuel costs of 20 – 50% while some think this may be higher. Only modest increases are expected in insurance costs and workers compensation premiums. In terms of labor, half of the respondents believe their manpower requirements will remain the same while 34% believe labour needs will increase. Regarding sales volume, the results were split almost evenly. 31% percent believe sales will remain the same, 39% expect growth and 31% believe volume will decrease from 2007.

Half of manufacturer respondents believe that demand for their company’s products will decrease in 2008, of which 66% believe demand will affect the diamond tool market segment while the other third believe other equipment will be affected most. In terms of forecasting for 2009, 38% of respondents are expecting modest growth in the sawing and drilling market while 25% expect no change.

With regards to the biggest threats to growth in the sawing and drilling market, most manufacturers believe it is the ‘wait and see’ attitude of the governmental sector due to the upcoming national election in the U.S., and the slow economy in general. Others see competition from overseas manufacturers with lower-priced goods as a factor. An impressive 89% of manufacturer respondents believe

PDi • Issue 5 - 2008 • Dec 08 - Jan 09

CSDA membership is a fair return on their investment, certainly good news for CSDA. For 33% of the respondents, CSDA members make up more than 50% of their sales and for another 33%, CSDA members make up less than 10% of their sales revenue.

O’Brien feels that all CSDA members should be encouraged by these results, as many predict that the concrete drilling and sawing industry will remain buoyant in the near future.

“As a whole, the results should give members confidence for the coming year, as the general consensus strongly feel that growth is possible and furthermore, expected,” he said. CSDA intends to conduct this basic survey on a years basis to collect historical data on the sawing and drilling market.

www.csda.org

UK Drilling and Sawing Association celebrates 25 years The UK Drilling & Sawing Association was formed in 1984 and is one of the oldest and biggest concrete cutting associations in the world.

“Since our association was founded main contractors, engineers and architects have increasingly recognised the value of diamond drilling and sawing technology”, says the association’s secretary Hugh Wylde.

The DSA membership consists of Contractor Members and Supplier Members. Contractor Members are specialist companies supplying a professional diamond drilling and sawing service.

Other available services can include bursting, crushing and thermic lancing. The Supplier Members provide the specialist machines and tools used in drilling and sawing.

The DSA has built up a membership of approaching 110 companies, and is committed to the development of consistent standards of workmanship and training. Clients can then have confidence in the quality and specification of work offered by our contractor members.

The DSA also has active links with the drilling and sawing associations in other countries through the International Association of Concrete Drillers and Sawers (IACDS).

The DSA provides Training and Accreditation Services through its subsidiary company DSA Training Ltd. To celebrate the an-

niversary and to demonstrate benefits with concrete sawing and drilling techniques, the UK Drilling & Sawing Association in conjunction with the SED 2008 show organisers, presented the “Diamond Zone” at the show SED 2008 earlier this year. Visitors were be able to watch diamond cutting equipment in action and get to know the association and its history.

PDi Magazine would like to take this opportunity to congratulate the DSA on its anniversary.

www.dsatraining.co.uk www.drillandsaw.org.uk

US Demolition Association will hold its 36th Annual Convention 2009 at Walt Disney World, USA The US National Demolition Association’s 36th Annual Convention will be held at Walt Disney World’s Swan and Dolphin Resort in Orlando, Florida on 5-8 April, 2009. This resort is situated right next door to Epcot, Hollywood Studios, and Disney’s Boardwalk. Transportation via boat or bus is available just outside the hotel’s door to all Disney properties.

The Association has reserved 100,000 square feet (9300 m2) of exhibit space in the Dolphins’ Convention Centre and great meeting and ballroom space all of which are all easily accessible from the hotel lobby.There are also a wonderful selection of pools and a lagoon with beaches for fun in the sun, luxurious accommodations and an atmosphere of expectation and excitement that is the uniquely Disney.

www.demolitionassociation.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 5 - 2008 • Dec 08 - Jan 09 •

PDi 57

Crusher Guidance Unveiled It has been a year in the making, but the UK’s National Federation of Demolition Contractors’ new guidance on the safe use of mobile crushers has finally been published. It is a welcome relief from the quarry-oriented guidance previously on offer as Mark Anthony reports.

Like the demolition and recycling sectors, the quarrying and mining sector utilises trackmounted jaw and impact crushers. Both use these specialised machines for materials reduction and processing purposes. And both industry areas require men to interact with these machines on a continuous basis. But that, largely, is where the similarities end. While most demolition sites are transient and short term, mines and quarries remain fixed for prolonged periods of time, allowing mine and quarry operators to set in place measures to protect their workforce from falling into the crusher chamber or from being struck by material ejected by the crusher. Mines and quarries are usually large, open and unobstructed areas, unlike demolition sites where space is often at a premium. And the quarrying sector has experienced fatalities from the incorrect use of mobile crushing equipment, while thankfully the demolition industry has been rather more fortunate.

Demolition-Specific Against this background, the NFDC was quick to react when the Health and Safety Executive issued its own guidance notes on the safe use of mobile crushers. “As with any item of legislation designed to improve

the safety

58

of our workers, we welcomed the HSE’s initial guidance notes. We generally supported them when they implemented the rules and served some demolition sites with prohibition notices when they found operatives on the crushers while they were working,” says NFDC chief executive Howard Button. “But we were also extremely conscious that the HSE guidance had been written largely in response to injuries and fatalities in quarry applications and that some of their recommendations would prove difficult or impossible to adhere to within a demolition environment. That is when we decided to produce our own specific demolition version.”

To assist in the process of producing the new guidance notes, the NFDC enlisted the help of Federation associate member Sandvik Mining and Construction, a recognised leader in the field of mobile crushing and screening equipment and the owner of both Extec Screens and Crushers and Fintec Crushing and Screening. “We used the HSE guidance as our starting point, but we knew that the machines and the way they are used differs somewhat in the demolition and recycling sector, so we wanted the input of a company with a foot in both camps,” says Button.

“A surprisingly large number of NFDC corporate members currently run Extec and Fintec machines so Sandvik seemed to be the most sensible company to partner us.”

Punchy Reference The resulting document is a punchy, quick reference that addresses all the key issues of safety surrounding these highly productive and yet potentially hazardous machines. “In the right hands, a mobile jaw or impact crusher is a highly productive piece of equipment that is every bit as common in the demolition arena as a high reach excavator,” says Sandvik global product line director John Nethery. “But without proper planning or training, these machines do have the ability to cause injury. As a leading supplier of this equipment, we were delighted to have been invited to participate in helping address these important safety issues.”

The new guidance notes, which will be issued to NFDC members immediately after the NFDC 2008 Convention in Majorca at the end of August, identify and address all the key risk

PDi • Issue 5 - 2008 • Dec 08 - Jan 09

areas, including machine guarding, clearing blockages, slips and trips, and the interaction with the loading machine. The guidance also addresses the most contentious of all the original HSE guidance; the presence of a person on the crusher’s operating platform while the machine is working. “The recommendations in the new NFDC guidance makes it very clear,” adds Nethery. “A properly designed mobile crushing operation should not need any person to be present on the crusher access platform during normal crushing operations.”

Multitude of Risks Nethery asserts that any person on the platform during operation faces a multitude of potential risks, including being struck by objects ejected from the crusher; being pulled into the crushing chamber when attempting to pull out contaminants or oversize material; being struck by an excavator or wheel loader bucket; and exposure to noise, dust and vibration.

“One of the key areas of concern for us as a manufacturer of this equipment is the issue of Whole Body Vibration,” says Nethery. “Anyone working on a mobile crusher while it is in operation could be exposed to constant, low-frequency vibration that should be avoided.”

Nethery believes that the primary reason operatives have traditionally stood on the operating platform is to tackle blockages and bridging.

But he further believes that this can be avoided through thorough preselection of materials and the use of stand alone and isolated picking stations to prevent blockages, and boom mounted breakers to remove them when they occur.

“Demolition contractors are generally excellent at materials segregation, partly because they truly understand the value of the materials being recycled, but also to protect their crushers from tramp metal and oversize material,” adds Nethery.

“By ensuring that such vigilance is the norm and by following the advice of the new guidance notes, demolition contractors can remove the need to put a crusher operator in harm’s way altogether.”

Sandvik Mining and Construction’s Alan Matchett, a long-time supporter of the National Federation of Contractors, says that together with CITB ConstructionSkills, his company will be taking the implementation of the new crusher guidance notes a stage further. “We have previously helped CITB ConstructionSkills with some of their demolition operative training programmes by loaning them attachments and even crushers, and by helping with equipment familiarisation,” says Matchett. “But, having taken such an active role in the compilation and production of these new NFDC guidance notes, I would like to think that we can now use this document as the basis for future crusher training for demolition operatives.”

Building Machinery 2009 with DemExpo to take place in Gothenburg in January 2009 The Swedish Exhibition Centre in Gothenburg will hold their biennial exhibition Building Machinery 2009 between 20-23 of January, 2009.

The exhibition has been arranged since the beginning of the 1980s and is avery well appreciated show among concrete sawers and drillers as well as companies working with floor preparation. The majority of manufacturers and suppliers of diamond tools, concrete cutting equipment, floor grinding equipment, dust extraction equipment etc will attend next years show. Despite the approaching recession in Scandinavia the number of exhibitors are just as good as in 2006.

New for the 2009 edition is a special section in the show grounds named DemExpo.

DemExpo is dedicated to the demolition and recycling market and its players. A number of well-known suppliers of demolition attachments have booked space and brand names like Trevi Benne, Daemo, Atlas Copco, Indeco, Rubble Master and OM-Track among others will be presented.

The Co-sponsors of the show are Swedish Demolition Association and Swedish Concrete Sawing & Drilling Association.

Besides this focus the Building Machinery show has also a very strong focus on machines and equipment for rental purposes. Over 160 companies will exhibit and among them some of the big rental chains in Sweden.

www.bygg-maskiner.se www.demexpo.se

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