ISSUE THREE • 2015
THE CMA – QUALITY CAST IN CONCRETE
• New code of ethics • CMA Mark of Approval • Precast bridge for world-renowned race track
2
38 QUANTITY SURVEYORS GROWING ROLE
KYALAMI PRECAST BRIDGE
PEOPLE & EVENTS
39 EXPENSIVE COMMODIT Y – ELECTRICIT Y
22
5
AN EYE-OPENER – HYBRICEM 2015
7
BEST YEAR EVER FOR SARMA
8
MULTILINGUAL LECTURER FOR TCI
PROJECTS
9
CMA AGM
24 RETAINING WALL SPACE-SAVER
9
CONCRETE PROTECTION FOR EGGS
25 COMMUNITY ASSISTANCE IN EASTERN CAPE
9
NEW MEMBER
26 BLOCKS HANDLE HEAVY TRAFFIC
43 LAUNCH OF DRY MORTAR PRODUCTS
11 BAUMA TRADESHOW
27 INDUSTRIAL PARK – LORD’S VIEW
43 GEOSYNTHETICS ASSISTANCE
13 PUTTING QUALIT Y BACK INTO QUALIT Y MANAGEMENT
28 SHOPPING CENTRE STABILISED – MPUMALANGA
14 WELL SUPPORTED CMA AWARDS
31 LARGE-DIAMETER PIPELINE PROJECTS
14 INFO CENTRE GROWS
32 LARGE MULTI-STOREY DEVELOPMENT HOLLOW CORE FLOOR
INDUSTRY NEWS 15 MARK OF APPROVAL – CMA ACCREDITATION 15 BEE CODES OF PRACTICE CHANGES
GLOBAL VIEW 40 HARNESSING THE BEAUT Y OF CONCRETE
PRODUCTS 42 GAP-FIXING MADE EASY
44
TECHNICAL 33 REMAIN RELEVANT/ CHANGING STANDARDS
45 FACTORY MODERNISATION ON TRACK
17 LAFARGEHOLCIM – AIMING AT BEING NEW WORLD LEADERS 18 BOUND BY CODE OF ETHICS – CMA 18 PERFECT QUALITY – NEW PRODUCTION PALLET 19 DAMS SUSTAIN LIFE 21 HOUSING BOOM COMING
46 PAVING MANUFACTURER ACQUIRED
AROUND & ABOUT
34
PRECAST is the official journal of the Concrete Manufacturers Association NPC (CMA)
Advertising: Wally Armstrong Cell: 083 701 3278 E-mail: legweak@mweb.co.za
Physical Address: Office 0400, Standard Plaza Building, 424 Hilda St, Hatfield, Pretoria Postal Address: PostNet Suite 8612, Private Bag X32, Kempton Park, 1620 Tel: +27 11 805 6742 Fax: +27 86 524 9216 E-mail: admin@cma.org.za Website: www.cma.org.za
Subscriptions/Accounts: Thuli Majola Tel: +27 11 883 4627 E-mail: subscriptions@isikhova.co.za
47 ZIMBABWE MEMBER SHOWS THE WAY 48 MEMBER LIST
ON THE COVER
ISSUE THREE • 2015
THE CMA – QUALITY CAST IN CONCRETE
Publishers: Isikhova Publishing & Communications Postal Address: PO Box 651793, Benmore, 2010, South Africa Tel: +27 11 883 4627 Fax: +27 11 783 2677 Website: www.isikhova.co.za Publisher: Andrew Meyer Tel: +27 11 883 4627 Cell: 082 456 5175 E-mail: andrewm@isikhova.co.za Consulting editor: Raymond Campling Tel: 076 297 2775 Email: media@mediasavvy.biz
PRECAST | ISSUE THREE | 2015
cast bridge beams have shaved weeks off construction time of a high speed flyover bridge on
Design and layout: Joanne Brook Tel: +27 11 883 4627 E-mail: joanne.studio@isikhova.co.za The views and statements expressed in this publication are not necessarily those of the editor or the publishers and neither the publishers nor the CMA accept responsibility for them. No person connected with the publication of this journal will be liable for any loss or damage sustained as a result of action following any statements or opinions expressed herein. The same applies to all advertising. Precast© 2015. All rights reserved. No part of this magazine may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopying, recording, or any information storage retrieval system, without prior written permission from the publishers.
Specially manufactured pre-
the revamped Kyalami Race Track. The bridge was required • New code of ethics • CMA Mark of Approval • Precast bridge for world-renowned race track
to be constructed quickly to keep up with the rest of the construction work. Precasting was the obvious choice as this meant that there
were few or no disruptions on site. To achieve this the beams were pre-stressed with up to 500 tons of pressure to conform to National Highway Regulations, which is necessary to allow the heavy weight of the road structure as well as the heavy construction equipment to move over the bridge with
Endorsed by:
no effect on the overall integrity of the structure.
CONTENTS
36 HOW TO USE READYMIX
COVER STORY
1
COVER STORY 2
Specially manufactured precast bridge beams have shaved weeks off construction time of a highspeed flyover bridge on the revamped Kyalami Race Track. Manufactured by CMA member, Silverton Precast in Pretoria, the 13m precast T-beams reduced construction time by at least six weeks on site and allowed a far simpler and more cost-effective system to be developed for the worldclass race track. After initially weighing up the options, lead engineers WSP Group Africa (Pty) Ltd designed the structure to be carried on top of reinforced earth embankments spanned with 40 precast beams. These would act as both the backbone of the bridge and as a permanent formwork for an in situ concrete deck, as well as road surface layers. Technical detail In order to ensure the smooth progress of the project, Silverton Precast owner, George Ellinas, invested a considerable amount of time and infrastructure to ensure the 40 oversize beams were deli ver ed on time and to the tight specifications of the engineer. He ex plains: “We wer e awar ded the tender to produce 40 T Y 5 prestressed beams weighing 10 tons each and measuring approximately 13m by 700mm wide and 600mm high. This required us to prepare casting beds with the capacity to produce two beams per bed at a time. We also had to install tensioning equipment to ensure that
PRECAST BRIDGE
and increasing the strength of our
FOR KYALAMI
concrete mix, we were then able to
to cure the concrete to at least 40MPa
the Kyalami Race Track, which entails
remove the shutters within just five days
to ensure the shutters for the concrete
lengthening and upgrading the surface of
to ensure the strand could be removed in
could be safely removed.
the track, as well as providing improved
pre-stressed cables were correctly tensioned on each beam. “By putting in two sets of shutters
time. While the sides were removed, the
George explains that the pre-stress-
soffits were designed to be left in place
ing process required up to 500 tons of
to speed up the process.”
pressure to conform to National Highway
access to the inside perimeter via the underpass bridge.
Regulations, which is necessary to allow
Need for speed
Stringent regulations
the heavy weight of the road structure as
“We had to design a bridge that could
With final preparations in place, the first
well as the heavy construction equipment
be constructed quickly to keep up with
pour started early on 21 May this year
to move over the bridge with no effect
the rest of the construction work.
and the entire project was completed
on the overall integrity of the structure.
Precasting was the obvious choice as
just six weeks later on 2 July. This was
Bridge designer, Hugo Louw of WSP
this meant that there were few or no
a remarkable achievement considering
Group Africa, says the bridge project
disruptions on site (as would have been
that the team at Silverton Precast had
forms part of the massive upgrade of
the case with in situ construction). It also
PRECAST | ISSUE THREE | 2015
About Silverton Precast
machines, as well as several road base
The company was started in 1998 by
layers and the special bitumen running
George’s father, Costa. Together the
c o ur s e . A s an a d d e d b e n e f i t, th e
f ather -and-son team established a
reinforced earth panels as well as the
concrete yard to manufacture lintels
exposed beams at the bottom of the
for the Pretoria building market. From
bridge provide a more attractive and
humble beginnings manuf acturing
smooth face,” explains Louw.
approximately 300m of lintels per day,
He adds tha t the end r esul t is
the company has expanded to become
satisfying as it met all the criteria for
one of the largest lintel manufacturers
speed, cost and aesthetics. “We are
in the capital, producing 4 000m per day
proud of the rapid deployment of the
and seven days per week.
bridge as well as the overall look, which
In 15 years the company has manu-
fits in with the sophisticated nature of
factured enough lintels to go end-to-end
the track. This is a job we can truly be
from Cape Town to London. It has also
proud of and all sub-contractors involved
expanded into the fields of civil and infra-
in the job need to be commended.”
structure work manufacturing a range of products that range from light mast
Specifications
bases to road barriers, stormwater
• Manufactured in six weeks
channels, grids and a variety of road-
• Weight per beam 10 tons
related infrastructure.
• Measuring approximately 13m
we know shutters. If you give us a plan and
x 600mm high
a steel bending schedule, we will manage
• Overall bridge span 9m
everything else from there. By adhering
• Bearing-to-bearing span 11m
to all quality management specifications,
• Overall span 13m
the end result will be a product that
• Beam is tensioned
conforms to all specifications and criteria
and prestressed
and that is exactly what we aim to
• Readymix concrete used due
achieve,” concludes George.
to time constraints • Readymix ensured consistent strength and workability • Mix designed by Frank Cutugno of Pronto Readymix • Truck Conveyor Mounted pouring of concrete which allowed concrete to enter gave us the option to be innovative and
300mm space
opt for reinforced earth walls which not
• End strength of beams after
only speeded up the project considerably,
28 days approximately 70MPa
but also significantly reduced the overall cost of the project. “The project relied on sub-contractor, Reinforced Earth, to prepare the walls with steel strap mesh and specially designed panels made from 140mm of reinforced concrete. Once completed a concrete strip was cast in situ at the abutment to form a solid footing for the beams. Elastomeric bearings were then installed with a spacing of 765mm between beams. The upside-down Tshape beams were then lowered into place and spaces were grouted to form permanent formwork that was then filled in with a deck of in situ concrete. “This provided a strong base for construction work to proceed and carry
PRECAST | ISSUE THREE | 2015
“We know concrete, we know steel and
• Dimensions 700mm wide
(Clockwise, from left): The bridge under construction at Kyalami Race Track; Silverton Precast manufactures specialised products for roadways; David Shabangu, George Ellinas, Sybert Seshoka and Mpho Mampana.
COVER STORY
the weight of the heavy road surfacing
3
The CMA recently teamed up with the
concrete to be used between the walls.
selves to the technique, especially in
Concrete Society of Southern Africa to
This provides a speedier construction
light of skills shortages in the building and
host the Hybricem 2015 Hybrid Con-
time as well as improved material costs.
construction industries. Tilt-up provides:
crete Construction Seminar at venues
Daniel Petrov of Echo Prestress (a
across the country to highlight the
CMA member) showed how hollow core
• Speed of construction
method of integrating precast con-
flooring (and beams) provided new lev-
• Durability of the end product
crete and in situ cast concrete to build
els of flexibility. This is largely thanks
• Cost-effective designs
structures.
to improved speed on site as a result
• Efficient utilisation of available labour
Among the speakers were Prof Jan
of the slabs’ integration with other
• Improved safety, as most work is done
Wium of Stellenbosch University, who
structures. He cautioned, however, that
examined the finding of a study that
hybrid construction projects should be
looked at the various pros and cons of
planned for upfront.
• High-quality finishes
at ground level Technical specialist Daniel Petrov
of Echo Prestress also examined con-
using this technique. The consensus
Charles van Eck of Tilt Up Systems
crete joints and looked at connections
among consultants and contractors was
said that tilt-up is the way of the future
to assist in joining in situ and precast
that precast is favoured for quality and
where suitable structures lend them-
concrete components.
speed, but in situ for cost-competitiveness. Hybrid Construction can deliver the best of both worlds, it seems. Vincent Teissier, of LafargeHolcim Centre of Research, added that a number of technical options are already available and discussed some innovative hybrid approaches, including precast twin wall designs that provide structural strength, as well as formwork for in situ
PEOPLE & EVENTS
HYBRICEM 2015 AN EYE-OPENER
(Above, from left): Prof Jan Wium, Vincent Teissier, Daniel Petrov and Charles van Eck.
5
SARMA BEST YEAR EVER Expect more from the readymix industry
minimum standards are maintained that
in future as years of hard work and plan-
will put an end to building collapses and
ning culminate in the professionalisation of
ramshackle houses as a result of inferior
the industry and the widespread adoption
products being used,” says Sarma Chair-
of certified readymix as the construction
man, Deon Fourie.
material of choice by the country’s most
Speaking at the association’s annual general meeting recently, he said that
influential construction bodies. 2015 will go down as the most ground-
these developments mark a watershed as
breaking year since the establishment of
the construction industry embraces nec-
the Southern Africa Readymix Association
essary quality over price. Sarma-certified
(Sarma) more than a decade ago, as indus-
members cannot cut corners and have
try organisations representing engineers,
sometimes been undercut by non-compli-
contractors and building pro-
ant readymix suppliers. This not
fessionals accept Sarma cer-
only jeopardises the integrity of
tification as the criteria for
the structure, but also lends to
all readymix supplied to their
unfair competition.
members’ construction sites. Simultaneously, the coun-
Ongoing initiative
try’s main contracting firms,
“ T h ank s t o th e e f f or t s o f
as well as parastatal organi-
General Manager Johan van Wyk’s role-players across the
sations including the South African National Roads Agency Ltd (Sanral) and other govern-
(Above): Sarma chairman, Deon Fourie.
country, an increasing number of organisations are seeing
ment entities, have also specified that only
the benefits of using only accredited
Sarma-certified readymix concrete may be
readymix and he is slowly winning the fight
used on their sites.
to professionalise readymix concrete in South Africa.
Growing support
“Under his leadership, the association
“This had the knock-on effect of attracting
is also throwing its weight behind the set-
a growing number of non-member readymix
ting up and adoption of new modern-day
suppliers who have begun working tire-
standards for readymix, as well as pushing
lessly to meet membership requirements
for higher standards of testing from the
and become part of the association. As a
country’s laboratories when it comes to
result, membership has grown in leaps and
dealing with concrete.
bounds, with growth of 11% in accredited member numbers during 2015.
“In addition, there are moves afoot to start a clean-up squad to remove concrete
“This is good news for the local con-
spills from our roadways, as well as new
struction industry as it ensures our
training initiatives to improve the skills
construction projects have world-class
of concrete workers and professionals,”
concrete. It also ensures that acceptable
said Fourie.
PRECAST | ISSUE THREE | 2015
School of Concrete Technology lecturer,
to enjoy their work and earn a living from
conducted in English or Afrikaans, and a
Matthews Magwaza, has one important
even just basic concrete technology.”
large percentage of black people thirsty
attribute that helps teach hundreds of
Another training obstacle many of
for concrete knowledge could not properly
South Africans how to correctly and
these budding concrete business people
understand the lecturers. In cases where
profitably use concrete: he can speak
face is language. “For many years, South
they were illiterate, this was even more of
five South African languages.
African concrete training was mainly
a problem. The school’s training is done in
Matthews, who has been associated
English, but I am fortunate to be able to
with the Concrete Institute and its
elaborate and answer students’ queries in
Midrand predecessors, the Cement &
Afrikaans, isiZulu, isiXhosa and the Sotho
Concrete Institute (C&CI) and Portland
languages, if required.”
C ement Institute (P CI) f or a total
“Some of my students have become
many previously
successful business people, running
disadvantaged South Africans are keen
concrete brick and block production
to pursue a concrete-related career.
yards. Some are even erecting structural
“Bu t the pr oblem is tha t most o f
elements, and others have rapidly been
these people acquired all their concrete
promoted within their companies. Their
knowledge by watching friends or other
backgrounds vary: most came from
people doing building work, so they end up
impoverished family backgrounds, but
being enthusiastic self-taught individuals,
I have even taught a qualified medical
without the vital technical knowledge of
female doctor how to use concrete. She
how to use concrete correctly to create
quit her job and opted for a career in
durable structures, or make quality
concrete. That’s concrete for you – it
job so much, teaching these people how
(Above): Matthews Magwaza, lecturer at the Concrete Institute’s School of Concrete Technology.
can change your life. It certainly changed mine,” he adds.
MAKE SURE YOU
SECURE YOUR SPOT
Don’t miss out! Book your advertising space in the next issue of Precast magazine. E•
RE
UE
TH
ISSUE
TWO
• 2015
the
2015
A–
ISS
ITY
ST
IN
ISSUE onE
TE
RE
NC
CO
cma
– QUa
LItY
caSt
IN cON
cRete
• 2015
CA
AL
QU
E CM
TH
the cma
– QUaLItY
caSt IN
cONcRete
• New
home for CMA • Push ing prod • Pion uction eerin with g pres tres
an
ufactur
er
io
n
Q
al
u
20 year s
ociat
Tel: 083 701 3278
m
ass
self-com pacting sed slab concrete manufac turer celebrat es
s
Contact Wally Armstrong for more information
it
yc as
t in concret
e
E-mail: legweak@mweb.co.za ck
race
tra
m
an
ufacture
rs
n
ua
Q
pipe to the test
sociatio
• CMA’s new Execut ive Directo • Concre r te masonr y pitfalls and solutio Bluff project ns puts watert ight jacking
• Durban
as
s ed ethic oval nown of -re pr de rld Ap wo w co rk of e for • Ne A Ma bridg • CM ast ec • Pr
c con rete
bricks and blocks. This is why I enjoy my
e
of 18 years, says
concret
PEOPLE & EVENTS 8
TCI GETS MULTILINGUAL LECTURER
lit
yc as
t in concr
et
e
THE CMA – QUALITY CAST IN CONCRETE
ANNUAL GENERAL MEETING This year’s CMA AGM was held at Emper-
CMA to initiate its own project to ac-
ors Palace, where a number of important
credit its own members. Also discussed
issues were raised and debated. Among
were a new code of ethics, new BEE ac-
them were potentially industry-debilitat-
creditation criteria, technical issues, as
ing delays at the SABS for the issuing of
well as administrative and marketing plans
marks of approval which prompted the
for the new year.
CONCRETE PROTECTION FOR EGGS Engineering students were recently given
mix ratios can be changed and teams have
the opportunity to test their technical
a free hand to come up with designs that
skills and compete against one another
they think will take the most punishment.
to build the best concrete device able to
Students from the University of Johan-
protect a raw egg from multiple blows from
nesburg’s (UJ) Auckland Park and Doorn-
a specially developed weight.
fontein campuses took place entering a
For more than two decades CMA mem-
total of 34 devices. In the end, the honours
ber, the Concrete Society of Southern Afri-
went to the team of Nkosinathi Mngadi,
ca, has hosted the Concrete Egg Protection
Sibusiso Shabangu, Keorapetse Kwele,
Device Competition throughout its branch
Morasoe Bernard, Bongiwe Dlamini, Lebo-
network to test the skills of engineering
hang Mosebi, Ziphiwo Kunene, Dzivhuluwani
students and highlight the strengths of
Nagana, Ore Mpye and Neo Modikeng.
concrete in structural applications. This year entries for the Inland Branch were of a high standard, with a number of structures able to take several blows from the heavy weight before failure and cracking of the egg. Concrete Society CEO, John Sheath, said the event is held annually to raise awareness of concrete among young engineers and highlight the importance of design to overcome challenges. Although all structures need to be designed with the same materials, weight and dimensions, the
(Above): Students from the UJ compete in the Concrete Society’s Annual Concrete Egg Protection Device Competition to see which design is best able to protect a fragile egg from the forces of a falling weight.
NEW MEMBER The CMA’s newest member, Ndlongho Civil & Construction, is a construction and consulting engineering company that provides services to both government and private-sector businesses. It also provides unique services to assist graduates and newcomers to the industry to develop their careers and later to add value in their chosen occupations. Ndlongho Civil & Construction is a fully black-owned company which holds a level 1 BBBEE Certificate.
PRECAST | ISSUE THREE | 2015
OUT AND ABOUT AT BAUMA A number of CMA members participated at this year’s Bauma Conexpo Africa trade show to showcase building material manufacturing equipment and techniques. The show is one of the biggest of its type on the African continent and provides an opportunity to showcase products and company services.
PRECAST | ISSUE THREE | 2015
ISIKHOVA 3550/2015
MAMBA 95
PURE BULK CEMENT 95% Clinker and 5% Gypsum
Contact Mamba Cement Tel: 086 101 7418 | Email: marketing@mambacement.com | Address: Krokodilkraal 545 KQ (Potion 53), Limpopo
Significant updates to the International
pave the way for easier implementation of
be more transparent and not as easy
Standards Organisation (ISO) ISO 9001
integrated SHEQ management systems.
to fudge. Quality will have to become a
quality management standard this year
As a result, the implementation and
way of life.”
will have a major ef fect on the way
auditing of management systems will be
quality is measured and managed within
run on a similar template, which will make
Summary of changes
companies across the globe.
it easier and faster to implement the
All those involved in quality assurance
Although changes are designed to
different standards without duplication.
within an organisation should make
streamline and simplify the system, it
Although the streamlining will benefit
themselves familiar with the upcoming
will nonetheless need to be implemented
companies in future, companies with ex-
changes and start to prepare and imple-
carefully and changes will need to be made
isting management systems will be faced
ment adjustments as soon as possible
within companies over a period of three
with a number of challenges, according
in order to be ready for ISO 9001: 2015
years to comply with the new ISO 9001:
to Fouché. “Firstly, the system will rely
accreditation in three years.
2015 standard.
on input from senior management and
A short summary of changes follows
Addressing members of the Concrete
auditors will have to be comfortable com-
and needs to be verified and imple-
Manufacturers’ Association (CMA) in
municating at that level. With the cor-
mented by quality personnel and senior
Midrand recently, standards expert
rect questions and information requests,
management:
Christel Fouché, CEO of Advantage
however, CEOs and the management
• The system has changed to a higher
ACT and AGO Certification, said that
team should be able to show compliance.
among the most significant changes
“Another challenge for companies
will be a shift of responsibility to senior
who think tha t they can r un their
is now in line with environmental,
management rather than being the
quality management system as a ‘paper
health, safety and all other standards
domain of companies’ quality management
exercise’ is that the new system will
• Several new clauses have been added
representatives.
need to be managed 365 days a year
and not just the week before an audit.
• The system will follow a process
New quality management systems will
approach
Necessary for trade
level of management
• Core structure of quality standards
and need to be studied
“In fact, quality management representa-
• Mention of preventative action has
tives are no longer an explicit requirement
been removed, as the system should
of the new standards, nor the require-
automatically take care of issues
ment for compulsory procedures. Rather,
• The term “product” is replaced by
businesses will be required to walk the talk
and be able to prove the steps that are in
• The term “continuous improvement”
place to ensure quality.
“Auditors will also have to adapt
“product or services” has been changed to “improvement”
• T he term “purchasing” has been
and will be required to interview senior
replaced by “externally provided pro-
management at CEO and similar levels
ducts and services”
in order to ensure that standards are
• References to quality manual, docu-
being upheld. While this may seem an
mented procedure and records have
onerous task, it is an absolute necessity
been removed – specific reference to
for businesses as it is very difficult to do
documented information is now done
business without ISO 9001 certification”
• N u m e r o u s w o r d c h a n g e s h a v e
Fouché said.
been made in order to make it easier
to interpret
She explained that the penalty for not maintaining proper quality standards can
• Three new informative annexes have
be severe, with damage to brands and
been included.
reputations being far more costly than
Although no longer a requirement, Fou-
any financial losses that may be incurred.
ché still recommends that quality management representatives be maintained and
Faster to implement
work hand-in-hand with senior manage-
The new ISO 9001: 2015 standard has
ment to implement quality requirements.
been developed on the foundation of the
Likewise, she recommends that quality manuals also not be thrown out, even
new Annex SL document. This document will set the new quality standard in line with ISO 14001 environmental and OHSAS 18001 health and safety standards and
PRECAST | ISSUE THREE | 2015
(Above, from top): Delegates and members of the CMA attended a talk on changes that have been made to ISO 9001; Christel Fouché of AGO Certification.
though this is no longer a requirement. “Remember, when you are out of quality, you are out of business,” she concluded.
PEOPLE & EVENTS
UPCOMING CHANGES WILL PUT QUALITY BACK INTO QUALITY MANAGEMENT
13
AWARDS ARE WELL SUPPORTED The Concrete Manufacturers’ Association’s (CMA) NPC 2016 Awards for Excellence competition is being supported by an impressive array of sponsors. PPC is the anchor sponsor and its contribution has underpinned the event’s organisational cost from the earliest planning stages. Other sponsors include Afrisam, Lafarge, BASF and Chryso. In addition to being the anchor sponsor, PPC is also sponsoring the table settings. Afrisam is covering the pre-dinner drinks and dinner wines and Lafarge is taking care of the ladies’ gifts. BASF is sponsoring the production of a short film on precast decorative concrete, which will be shown at the gala dinner ceremony to be held at Summer Place in Johannesburg on 23 April. Chryso’s contribution will cover the cost of producing miniature trophies which will be presented to members of the winning teams during the ceremony. “We are extremely grateful to our sponsors. Thanks to them, the 2016 Awards for Excellence competition will be a memorable event and one which makes a worthwhile contribution to the promotion of precast concrete and its numerous applications,” says CMA Awards Committee Chairperson and Echo Prestress MD, Monique Eggebeen. Entries will be judged on the contribution precast concrete elements make in one or more of the competition categories. Six floating trophies will be presented to the manufacturers of the precast concrete elements in the nominated categories. In addition, commendation awards will be made to three runners-up per category, provided these entries meet the standards of the judges.
CONCRETE INSTITUTE INFO CENTRE GROWS Kizzy Shipalana has joined the Concrete Institute’s Information Centre team as Information Specialist. A qualified librarian with more than 10 years’ experience in the field, Shipalana started her career at the South African National Biodiversity Institute (SANBI) as a library student in 2001. In 2003, she was appointed there permanently as a librarian. She worked for Ditsong Museums of South Africa from 2007, also as a librarian, prior to joining the Concrete Institute. Shipalana holds a BA (Hons) Library and Information Science degree, obtained at UNISA.
(Above): Kizzy Shipalana (right) with Information Centre colleagues Susan Battison (left) and Bongani Methula.
Due to requests from Concrete Manu-
Approval or have no national specifi-
mark holder will provide the names of
facturers’ Association (CMA) members,
cation for their products, as well as
sites where products are delivered or
as well as non-members in the precast
non-producers who would want to be
installed and the auditor will randomly
concrete industry, the CMA has decided
accredited by the CMA. The CMA will
select a site to audit. The final approval
to investigate the possibility of starting
still keep Associate-, Non-producer and
and recommendation for accreditation
an Accreditation/Mark Scheme for its
Contractor- and Cement Producer mem-
and the mark will be done by an inde-
members.
bers. (These members are also allowed
pendent Approvals Board. Accredita-
to be accredited if they comply with the
tion and Mark-holders will be listed on
requirements of the Scheme.)
the CMA website.
Af ter car ef ul consideration, the decision was made to pursue this opportunity and so add more value to its services to the members of the CMA.
“The CMA Mark scheme requirements
The CMA will be the custodian of
will include basic compliance with the
this Accreditation/Mark Scheme and
According to CMA Executive Direc-
Occupational, Health &
will issue and suspend
tor, Frans Minnaar, the CMA Accredita-
Safety Act, the Com-
(if necessary) the ac-
tion/Mark Scheme is a voluntary scheme,
pany’s implemented Qual-
creditation or the mark
so any member can apply for participa-
ity Management System
of members with a rec-
tion in it. With application, the member
and an applicable product
ommendation from the
accepts the scheme’s rules and regula-
specification. (Products
Approvals Board.
tions and will have to comply with it in
will be tested on site
“We will need to mar-
order to obtain the CMA Accreditation
with the manufacturer’s
ket the scheme very well
or the Mark of Approval.
calibrated equipment.
to ensure we have the
Independent testing at
buy-in of the professional
Proving compliance
accredited laboratories
bodies involved in specify-
“In essence, there are two legs for this
will also be allowed.)
ing products and show
scheme, namely Accreditation and the
“Complying members
them that the CMA Ac-
Mark of Approval. Firstly, the Accredi-
will be issued with a cer tificate of
creditation/Mark Scheme proves the
tation scheme requirements will include
compliance and will be allowed to use a
credentials of the products, as well as
basic compliance with the Occupational
‘special’ CMA logo on documentation and
any other mark available in the industry.
Health & Safety Act and an implemented
products,” says Minnaar.
After all, the SABS is an accreditation
operational Quality Management Sys-
agency and we will merely be testing
tem. In addition, the company will be
Keeping it tight
the same standards through a different
audited on an annual basis to determine
He adds that Accreditation audits will
verification agency,” concludes Minnaar.
compliance with CMA requirements.
be once per annum and Mark scheme
“The Accreditation scheme is for
audits will be twice per annum (possibly
producers who do not need a Mark of
one per site visit). For site audits, the
(Above): Frans Minnaar discussed the CMA’s new Accreditation Mark Scheme at the association’s AGM recently.
CHANGES COMING TO BEE CODES Companies in the precast and related
scorecard, as would enterprise and
may very well lose their status and find
industries should be aware that sweep-
supplier development.
their scores only qualify them as a Level
ing changes to BEE codes of
In compiling a BEE score-
7 supplier or worse. For this reason,
practice which will come into
card according to the new
companies need to become familiar
effect next year will have a
r equir ements the scor es
with the new codes as required by the
dramatic influence on compa-
have changed for a number
Department of Trade & Industry.
nies’ overall rating and may
of criteria and it is advisable
“A compliant BEE scorecard can
affect procurement decisions
to become familiar with the
assist companies to retain business,
of their clients.
new requirements, in order to
as well as obtain new business from
This is according to CMA
either try to comply or make
government and the private sector.
member, PPC’s Justin Meth,
allowance f or the change
Compliance also contributes to the
who was speak ing at the
in customer procurement
transformation of the broader society.
association’s recent annual
requirements that may put
My advice is to embrace the codes or
general meeting in Kempton
non-compliant companies
they will become a major stumbling block
Park. He said that company
further down the list in terms
in future,” said Meth.
ownership, management control and
of procurement preference.
skills development would play an increas-
“Companies that may pr ev iously
ingly important part in the overall BEE
have been certified as a Level 4 supplier
PRECAST | ISSUE THREE | 2015
(Left): Justin Meth of PPC delivered an insightful talk on the new BEE codes at the CMA AGM held in Kempton Park recently.
INDUSTRY NEWS
CMA ACCREDITATION/MARK OF APPROVAL
15
CELEBRATING
OF EXCELLENCE
Precast hollow-core slabs are to the construction industry what cellphones are to modern communications – fast, flexible, multifunctional and cost-effective. ECHO PRESTRESS (PTY) LTD - GAUTENG | ECHO FLOORS (PTY) LTD - GAUTENG ECHO PRESTRESS DURBAN (PTY) LTD - KZN | TOPFLOOR LTD - WESTERN CAPE
HEAD OFFICE 011 589 8800 | WWW.ECHO.CO.ZA
GROUP OF COMPANIES
A NEW LEADER FOR A NEW WORLD: LAFARGEHOLCIM On 15 July 2015 LafargeHolcim officially launched the new group around the world and announced key elements of its ambitions for the future. This followed the successful completion of the merger between Lafarge and Holcim and the listing of the new LafargeHolcim shares in Zurich and Paris. LafargeHolcim’s ambition supported by five key focus areas The company is initiating a strategic transformation by building on the best of both Lafarge and Holcim. Key facts and figures about LafargeHolcim • 90 countries • 115 000 employees • CHF32,6 bn in net sales • 386,5mt of installed capacity worldwide • More than 2 500 plants (including over 1 600 in readymix
concrete, over 600 in aggregates, over 180 in cement and
70 grinding plants)
• Our solutions and services: cement, concrete and aggregate
solutions for the following businesses: buildings, infrastruc-
ture, distribution, oil and gas, affordable housing and con-
struction systems
• CEO: Eric Olsen • Founded in 2015 following the merger of Lafarge and Holcim About LafargeHolcim With a well-balanced presence in 90 countries and a focus on cement, aggregates and concrete, LafargeHolcim (SIX Swiss Exchange, Euronext Paris: LHN) is the world leader in the building materials industry. The group has 115 000 employees around the world and combined net sales of CHF33 billion (€27 billion) in 2014. More information is available at www.lafargeholcim.com. About Lafarge South Africa Lafarge South Africa is a member of the LafargeHolcim group. The group applies its technical strength to continually develop innovative products and solutions that contribute to building better cities and communities, while reducing the environmental footprint of its products and manufacturing processes. Lafarge South Africa is one of the major building material manufacturers in southern Africa, with a strong presence in all of its business lines of cement, aggregates, readymixed concrete and fly ash. This places the company in a unique position to help the sustainable development of better communities that are the heart of our cities, rural towns and villages.
(Above): A new company, a new logo and new strategies to make the company a leader throughout the world.
PRECAST | ISSUE THREE | 2015
INDUSTRY NEWS 18
CMA MEMBERS TO BE BOUND BY CODE In future, members of the Concrete
as the integrity of the individuals, we
4. To accept responsibility for our ac-
Manufacturers’ Association (CMA) will
as members should accept a personal
tions, admit mistakes and correct
be bound by a code of ethics in a move
obligation to commit ourselves to the
them promptly.
to uphold professionalism and ensure in-
highest ethical and professional con-
5. To avoid real or perceived conflicts of
tegrity and honesty in their dealings with
duct,” said Minnaar.
interest whenever possible and to
disclose them promptly to affected
forward for comment:
parties when they exist.
general meeting in Pretoria recently, Ex-
1. Members shall strive to comply with
6. All members of the CMA shall do all
ecutive Director Frans Minnaar outlined
these guidelines, uphold, maintain
the importance of introducing a code
and improve the integrity, reputation
environment.
of ethics and added that rather than
and practice of the precast concrete
7. All members are urged to guide each
introducing detailed rules and regula-
industry.
tions, the association will encourage all
2. All members of this associa-
its members to abide by the codes in the
interests of uplifting the reputation of
• To practise acceptable
the entire industry.
customers, suppliers and competitors. Speaking at the association’s annual
“It is the mission of the CMA NPC to
The following guidelines were put
within their power to protect the
other in carrying out the intent of
these guidelines and are further charged with the responsibility
tion shall strive:
to advise the Directors of this association without
safety standards;
delay of any violation of
• To comply with the
enhance the image of the precast con-
legal and regulatory
these guidelines brought
crete industry. We recognise that integ-
requirements of the
to their attention.
rity is the cornerstone of trust and that
country;
trust itself is something that can only be
• To manufacture good-
earned or built through perseverance and
quality products at all
persistent adherence to responsibilities
times; and
and obligations.
• To comply with our Code of Conduct,
tions relating to ethical conflicts within
namely the Competition Act, 89 of
the association can be best answered
Self-regulation
1998, as amended.
by thoughtful consideration of funda-
“Furthermore, realising that an as-
3. Members shall protect each other’s
mental principles, rather than reliance
sociation is essentially the sum of its
right to privacy and confidentiality
on detailed regulations. “Therefore we
members, and that adherence to a code
with respect to information sought
cannot and do not dictate conduct to
of ethical responsibilities is only as good
or received.
cover particular situations.”
8. Members shall seek peer review in situations not fully comprehended. Minnaar concluded that ques-
THE NEW PRODUCTION PALLET FOR PERFECT QUALITY The industrial production of concrete
particularly high impact and abrasion
• Effective and cost-saving utilisation,
blocks and products demands adherence
resistance and ensures the longevity
due to the low net/self-weight of the
to high standards from the manufactur-
and consistent moisture content of the
PERI Pave pallet, Energy savings are
ing systems that are used. The aim is to
PERI Pave pallets.
achieved during the transportation
of the pallet through the machine
The foremost advantages of the PERI
ensure a constantly high and repeatable concrete quality for many years, coupled
Pave pallets are;
cycle. Cycle times are reduced as
with a high output.
• E xcellent compaction character-
there are no withdrawal plates, thus
The PERI Pave production pallet has
istics. Due to the homogenous con-
increasing efficiency.
been used for many years in countless
struction of the pallet, the bandwidth
• Constant properties for repeatable
businesses very successfully, especially
of compaction tolerances are lim-
concrete quality are maintained with
in Europe. Due to the highest quality and
ited to a minimum, uniform heights
the PERI Pave pallet over a long pe-
dimensional accuracy, it is recognised
and high consistencies. Tests in
riod,
worldwide as an important factor in the
Germany have proven that by simply
harsh UV exposed conditions, as well
production of quality concrete products.
replacing an existing pallet with
as in air-conditioned chambers.
With the PERI Pave production pal-
a PERI Pave pallet, average paver
• Suitability for every type of machine.
let, concrete products can be manufac-
strengths increased and the spread
Individual CNC processing makes the
tured consistently and cost-effectively.
of results decreased, allowing for a
PERI Pave pallet ideal for every cust-
The multiplex core of the pallet is pro-
reduction in cement content of the
omer, resulting in problem-free handling.
duced through the cross-binding of
paver mix.
• No leakage of wood substances,
high-quality hard wood veneers from
• Minimal deflections under highest
which means no discolouration of the
sus t ainabl y manage d f or e s t s. T he
loads are achieved, due to the load-
concrete product, as well as less
patented polypropylene coating offers
bearing core of the pallet.
dust formation in production halls.
also with high humidity and
PRECAST | ISSUE THREE | 2015
The devastating drought in many parts
First published in 1984 and revised
of South Africa has increased awareness
three years ago, Farm Reservoirs is a
of the need for effective water storage,
manual dealing with the use of concrete
“The manual has enabled owners of
particularly in rural areas. “It is there-
for water-retaining structures for irriga-
farm dams to build a structure that will
fore important that more rural local
tion, watering stock, farm dams, swim-
be serviceable for many years with the
authorities realise that even relatively
ming pools and household use. “There
ability of retaining considerable water
small concrete water reservoirs, stra-
has been tremendously positive feedback
pressures when full. Concrete farm
tegically placed, can play a vital role in
regarding this publication since it was
reservoirs are also a familiar sight in
sustaining struggling rural communities,”
launched by the Concrete Institute’s
most of South Africa’s major national
says Bryan Perrie, Managing Director of
predecessor, the Cement & Concrete
parks, and sustain wildlife in these game
the Concrete Institute.
Institute, so many years ago. The manual
reserves during the frequent droughts
Perrie says the local authorities
has been widely used as reference book
that strike many of these sanctuaries,”
should follow the example of hundreds of
by farmers and smallholdees in urban
Perrie adds.
South African farmers and smallholders
areas,” Perrie states.
who have for nearly three decades re-
The 52-page, A4 publication deals
ferred to the Concrete Institute’s most
with the construction of circular res-
popular and durable publication, Farm
ervoirs with reinforced concrete walls,
Reservoirs, to build dams on their prop-
as well as those with walls of fired clay
erties. “The Concrete Institute would
bricks, concrete masonry and corru-
be prepared to provide supplementary
gated galvanised steel. Guidelines for
advice to any local authority planning
reservoirs built with travelling moulds
to build farm reservoirs to serve people
are included. Rectangular reservoirs
living in isolated areas without or with
and swimming pools, elliptical swim-
limited, or drought-disrupted municipal
ming pools and drinking troughs are the
services,” he adds.
topics of other chapters, while data for
estimating the quantities of materials required is also provided.
(Above): The Concrete Institute’s informative manual on the construction of farm reservoirs has proved invaluable to the southern African rural community for nearly three decades.
INDUSTRY NEWS
DAMS SUSTAIN LIFE
19
INDUSTRY NEWS
Acclaimed and well-respected economist, Dr Roelof Botha of GOPA Group SA, is predicting that an improvement in the construction industry is around the corner and that the country is very possibly sitting at the beginning of the next housing boom. Addressing construction industry
21
professionals at the recent Readymix by Sarma conference, Botha added that the road to recovery in the economy is still a bumpy one, with commodity prices at a very low level. This is putting pressure on world economies, including SA. However, on the upside, he says that low commodity prices are due to swing as they follow cyclical movements and have done so throughout history. Despite challenges, our economy still continues to grow modestly and when commodity prices do swing, he predicts that it will flourish. Added to that, he says there are indications that the country’s property market is on the brink of the next property boom and that signs are already showing that the boom has started.
HOUSING BOOM IS COMING
Housing and infrastructure
criteria, efficacy of corporate boards,
“This is evidenced by the uptrend in
soundness of our banks, availability of
Despite this, Botha cautions that
building plans passed, which is an indica-
financial services and efficacy of the
as part of a global economy, we are still
tion that the industry is back on track
South African legal framework.
being hamstrung by low GDP growth.
posable income balance figures,” he says.
to grow faster. Contrary to popular
“Compared with the rest of the
Commodity price declines have lasted five
belief, the construction industry has
emerging and developed markets, we have
years already and nobody really knows
done well in the past decade and has
impressive fiscal stability and impres-
where the bottom of the cycle is. On the
grown by 5%.
sive real GDP figures and will therefore
home front, government expenditure is
“Added to this, there is pressure on
continue to outstrip world
increasing, but is still a mere
existing urban infrastructure and with-
GDP for the next 50 years. In
20% of GDP. He adds that
out doubt the country will need many
addition, the JSE (even in the
the lack of electricity, labour
more roads, railways, schools and hos-
commodity slump) is breaking
reductions and other fac-
pitals in future. This will clearly require
all the records and real retail
tors may continue to retard
government and the private sector to
sales are at an all-time high.
growth in future.
invest in infrastructure in the medium
“Household debt versus
term and this is key to unlocking the
disposable income r a tios
construction spending.
have improved dramatically
“Further good news is that credit
(Left): Economist Dr Roelof Botha predicts that South Africa may be at the start of the next housing boom
and are currently very good.
extensions and mortgages are growing
As a result of these and other factors,
(although still from a low base). Resi-
we also expect the prime lending rate to
Five reasons to be proud of SA
dential values are on their way up again
remain in single-digit figures for several
• SA is the 11th-largest market
and are expected to keep trend with
more years.
in the world
the 12% average year-on-year growth
• We have the third-cleanest
rate in the most popular segments of
Personal wealth
tap water
the market. Added to this, the country
“The employment rate is improving and is
• It is home to the world’s
is well positioned for growth due to its
expected to continue in this positive vein
second-largest brewer
competitive strengths in a number of
in future, while real salaries and house-
• The Eastern Cape is the sole
hold expenditure are still increasing.
producer of Mercedes-Benz
critical areas.
“Also, the country’s gross national
C-Class vehicles
Fiscal stability
income per capita is structurally at a
• It is rated No 2 in the world for
“These include our top-class securities
higher level than ever before and we have
budget transparency
exchange, tight auditing and reporting
record new household net wealth to dis-
PRECAST | ISSUE THREE | 2015
INDUSTRY NEWS 22
DANGER AT THE WORKPLACE The construction industry is one of the
R45 billion every year.” Included in the
most dangerous sectors to work for
indirect consequences of a building
and the industry needs to take more
industry accidents are a company’s
responsibility to control the risks that it
loss of reputation and goodwill, loss
creates for employees, Thelma Pugh, MD
of production and skills, low employee
of the Federated Employers’ Mutual Assurance (FEM), has warned.
morale, delays in completion of work, and loss of equipment.
FEM is the official assurer for
“In 2003, the industry killed 83
the South African building industry.
of its workers. In 2013, it again
Speaking at the Master Builders’
killed 83 – so there has clearly been
Association (MBA) North’s annual
no improvement. The UK building
which now accounted for more than
Construction Health & Safety
industry also killed 83 workers in
half of the total fatalities in the building
2013 out of a workforce of
sector. “South Africa records about
Pugh said the building
2,5 million. South Africa’s
15 000 road deaths every year. We have
industry contributed sig-
building sector killed the
some of the best legislation, but the
Awards function in Midrand,
nificantly to national economic growth and job creation, but was consistently plagued with workplace accidents. “Employers tend to see only the direct
same number, but out of a workforce of only 300 000. That shows the gravity of the situation.” She said research told us that the full cost of a building industry ac-
worst enforcement of road safety. “On a scale of 1 to 10, enforcement of national speed limits stands at 3, enforcement of drunken driving at 2, national motorcy-
costs of accidents such as medical, hos-
cident could represent as much
pital expenses and loss of wages, but the
as 37% of annualised profits
cle helmet law at 6, the
indirect costs are much more dramatic.
of an organisation, 8,5%
Research suggests that indirect costs
of a tender price and
at 1, and enforcement
are 14,2 times those of direct costs.
about 5% of an organi-
to prosecute users of
Severe cases can cost over R1 million, so
sation’s running costs.
the real costs could be as high as R14,2
“In addition to the harm
million for a single severe case.
accidents caused employees,
seat belt law at 1, child passenger restraint
mobile phones while driving also at a dismal 1. “Based on road traffic death rates
there are also the increasing
per 100 000 population, South Africa
A lot to lose
number of widows and orphans resulting
at 31,9% is ranked sixth-highest in the
“If one considers that the direct costs
from loss of lives to consider.”
world compared with, for example, the UK with 3,7% and other African countries
paid by FEM and the Compensation Fund collectively total R3,16 billion
Alarming statistics
like Malawi, Madagascar and Mozam-
per annum (and rising), the costs –
Pugh warned that there had been an
bique, which all lose under 20% of its
including indirect costs – must be about
alarming surge in motor vehicle accidents
population using the same yardstick.”
PRECAST | ISSUE THREE | 2015
OUR DOOR
IS OPEN BECOME PART OF THE FUTURE
WE INVITE ALL PRECAST CONCRETE MANUFACTURERS TO JOIN US *
* TERMS AND CONDITIONS APPLY
www.cma.org.za
CONCRETE MANUFACTURERS ASSOCIATION Address: Office 0400, Standard Plaza Building, 424 Hilda Street, Hatfield, Pretoria Tel: (011) 805-6742 • Fax: (086) 524-9216 • Email: admin@cma.org.za • Website: www.cma.org.za
PROJECTS 24
Creating space on steeply sloping ground is always tricky, especially when space is tight. This is where the versatility of CMA member, Terraforce’s precast concrete retaining block (CRB) walls came into play recently, when they were used to provide a small footprint near a vertical retaining wall at a residential property in Camps Bay.
SPACE SAVER
RETAINING WALL
When Camps Bay home owner, Sue Schalit, noticed that her original stone retaining wall was cracking and tilting forward, she was concerned
that it
might collapse and damage her own and neighbouring properties. “Geotechnical consultant Mike van Wieringen not only verified movement, but also observed that the foundations were inadequate. He recommended a CRB wall as it would have the least impact on our garden and would provide an exceptionally durable retaining wall solution,” says Schalit. Covering just over 86m², the new wall was designed by Fred Laker, an engineer with Terrasafe, Terraforce’s CRB wall design company, and it was built by an approved Western Cape installer, Das-
offered extremely limited work space
three months and Schalit was impressed
senberg Retaining, using L12 Terraforce
and all materials had to be carried in
with the Dassenberg team and the re-
wall blocks. Four metres high, the wall’s
bags down three staircases. “In addition,
sulting wall. “Dassenberg was incredible,
bottom section had to be reinforced with
spoils had to be carried up to road level
working in tough circumstances and re-
Y12 steel rebar.
by hand, making the whole process very
moving tons of rocks by hand. The wall is
labour-intensive.”
extremely neat and I am very happy with
Dassenberg Retaining’s estimator, Georg Brand, comments that the site
The wall was completed in less than
the result.”
PRECAST | ISSUE THREE | 2015
IN EASTERN CAPE
Brick and Block equipment manufacturer Hydraform has contributed to the construction of 27 affordable homes in the Eastern Cape on behalf of the Department of Rural Development & Land Reform.
Helping development Beyond supplying machinery, Hydraform’s participation in this project has not only helped create shelter for worthy citizens, but has also involved the community in the construction of their own houses.
PROJECTS
COMMUNITY ASSISTANCE
Radway Green Farm community members have also benefited from being gainfully employed during this process and have also acquired the necessary transferable
As part of the department’s commit-
Hydraform is a CMA member and
ment to development and upliftment,
has been a forerunner in the industry
skills in both block-making using Hydra-
the Radway Green Farm community just
for close to three decades, supplying
“The community members we em-
outside Grahamstown is being provided
interlocking block-making machinery to a
ployed for this project previously had no
with permanent shelter during a process
growing market and offering the neces-
transferable skills other than farming.
that will offer them employment while
sary training and skills development to
Now they have the ability to produce
teaching them invaluable skills.
inform and enhance the user’s experience
blocks and build using Hydraform in-
of the machinery. This existing model fed
terlocking building technology. A key
into the company’s extended offering to
objective of the project was to ensure
deliver turnkey solutions for specialised
that the community members were
housing delivery.
not only beneficiaries of homes, but
form’s technology and construction.
Sales and Marketing Director for
that they were trained in block-making
Hydraform, Nazlie Dickson, notes: “The
and construction as part of their skills
opportunity this initiative gave us was
development. The community produced
to implement our own project and prove
150 000 blocks that went into building
that a community can be transformed
their houses,” she says.
and enabled by participating in local con-
Notes Dickson: “The project itself is in
struction in a short period of time and
a rural setting where there are no formal
enjoy benefits beyond housing delivery.”
water and power facilities or supply.”
25
BLOCKS HANDLE HEAVY
Our full range of plywood and panel products For concrete block plants ¡ PERI Pave production pallets For precast plants ¡ Plywood and formwork panels in various qualities and sizes ¡ Standard material available at short notice and package-wise
TRAFFIC IN PMB
Concrete Block Paving (CBP) supplied by CMA member, Brickcast, has performed well on a 2 400m² section of Chief Albert Luthuli Street, situated between the City Hall and the Tatham Art Gallery in Pietermaritzburg. Completed in December 2013 to mark Pietermaritzburg’s 175th anniversary, the road formed a crucial element in an urban renewal project which was executed close to the City Hall and other historic structures. Shaun Sewnath, Brickcast Managing Director, says the
For other sectors ¡ Plywood for the furniture making, vehicle construction and packaging industry
road proves once again that CBP is as suited to the tough
For further information please contact Marleen Du Plessis Phone: 082 814 2222 | marleen.duplessis@peri.co.za
has to handle diverted traffic from the N3, including huge
conditions of public and heavily-trafficked roads as it is to private driveways and footpaths. “This section of road often multi-axled trucks and as can be seen in the picture, it shows no visible signs of wear.” Specified by consulting engineers Hatch Goba, the
PERI Plywood Solutions for different end uses
80mm/38MPa Roadliner interlocking pavers were cast with a 5mm red topping. They were manufactured to the latest SANS 1058 standard and, as such, were tested for abrasionresistance and strength to ensure that they met long-term (20-year) performance and endurance criteria. Prior to specifying CBP, Hatch Goba researched various road-surfacing options, including clay pavers and coloured asphalt. According to Project Manager Gaillard Rossouw of Hatch Goba, life-cycle costs, aesthetics and loading were of particular concern, the latter proving a key determinant in the choice of CBP. “Besides their superior load-carrying capacity, concrete pavers were chosen because their life-cycle and replacement costs were not only considerably lower than the other materials surveyed, but were much easier to replace. And because Chief Albert Luthuli Road forms an alternative route
Formwork Scaffolding Engineering ZA PERI 15.200
www.peri.co.za
to the N3 during temporary closure, loading was an important design consideration.” (Above): Chief Albert Luthuli Road, Pietermaritzburg, where Roadlliner interlocking pavers, manufactured by CMA member, Brickcast, show no signs of wear after withstanding two years of heavy traffic usage.
PRECAST | ISSUE THREE | 2015
PROJECTS 27
LORD’S VIEW
INDUSTRIAL PARK PROJECT
CMA member Technicrete was recently selected to pave and kerb the perimeter of Lord’s View Industrial Park in Chloorkop as well as provide a long-lasting solution for potential erosion issues on the site.
to Lord’s View Industrial Park, which is a project in motion and due for completion in June 2016. In addition to our pavers and kerbs, our Armorflex solution offers installation flexibility as it conforms to ground contours, does not fracture and requires little ground preparation. “It provides a good defence against erosion with an excellent lining for drainage channels. We are pleased with the final appearance of our products around
“Location, location, location” is the
BondBrick grey pavers for the parking
the industrial park, which has used the
property developer’s mantra and the new
and other walkway areas.
grey/terracotta colour scheme combina-
industrial park near Midrand offers just
“It was the product quality, service
that, with access to all the major high-
and price from the company that secured
ways, as well as being in close proximity
the contract, as well as their profes-
The Technicrete DZZ’s are available
to OR Tambo International Airport. When
sionalism. Product demand and supply at
in autumn, grey, terracotta, plum, slate
completed, the development will house
times became a challenge, but it was not
and tan colours with a length/width of
global and national industrial and retail
insurmountable for the suppliers, who did
220mm x 97mm. BondBricks are available
distribution centres and warehouses.
not fail in their delivery of stock.”
in the same colourings with a length/
Power Construction’s site agent,
further sites within the complex.”
width of 200/100mm.
Robert Turner, says “On a project of
Time-savers
this magnitude, aesthetics ar e as
In addition to the industrial park develop-
important as functionality. The kerbs
ment, Technicrete ISG also completed
and double zig-zag [DZZ] paving is a
work within the Greencross building area
quality product that gives the industrial
and will be supplying DZZ’s and Bond-
park a good and pleasing finish. We
Brick for the Foschini and Stuttaford
used Technicrete’s barrier, mountable
warehousing sites that are shortly to be
and semi-mountable kerbs in a variety
developed at Lord’s View Industrial Park.
of dimensions to kerb the 2.5km of
Technicrete ISG Sales Consultant
roads and walkways at the park, while
T ienie Br onk hor st comments: “We
the paving ar ea utilised DZZ’s and
supplied R1,5 million worth of product
PRECAST | ISSUE THREE | 2015
tion and are delighted to be involved in
(Above): Lord’s View Industrial Estate in Chloorkop.
“Demand and supply at times became a challenge, but it was not insurmountable for the suppliers.”
PROJECTS 28
MPUMALANGA SHOPPING CENTRE STABILISED Five geosynthetic reinforced retaining walls using precast concrete retaining blocks manufactured by CMA member, Aveng Infraset, have played a crucial role in creating stable terraces for the construction of Emoyeni Mall, a recently completed shopping centre situated on the R538 between Nelspruit and Hazyview in Mpumalanga. The mall was built by one of the coun-
face and built with the Infrablok 350.
try’s leading rural retail centre develop-
The largest wall, some 200m long, was
ment specialists, McCormick Property
built in an open-face configuration at an
Development, a company with a strong
angle of 70˚. It was constructed on the
focus on the emerging markets of South
perimeter of the property to reinforce
Africa. Engineered Interlock Solutions
an embankment which rose to 12m at its
(EIS) in conjunction with TMV Consulting
highest point from a service road below.
(Top): One of the open-face retaining walls at Emoyeni Mall. (Above): One of the open-face retaining walls at Emoyeni Mall.
Engineers designed the geosynthetic
“We only had 5-6m to work with on
varied between 300-450mm in depth, de-
reinforced concrete block retaining
this wall and the installation of extensive
pending on the height of the wall. TB 490
walls. The walls were built by EIS in close
sub-surface drainage was required be-
retaining blocks were used to erect the
collaboration with the main earthworks
fore construction of the wall could begin.
lower section of the perimeter wall and
contractor, Joubert en Seuns.
Sub-soil drains were installed on top of
the upper section was laid with lighter
EIS owner, Manie Troskie, says that
the foundations three to four blocks
TB 300s,” says Troskie.
EIS won the retaining wall tender on the
below kerb level. Fin drains, wrapped in
basis of an alternative and more cost-
A2 bidem which go right back to the cut
Basement work
effective design, which also offered bet-
face, were laid to trap water at the top,
High-tenacity Paragrid reinforcing sup-
ter functionality. “There are substantial
sides and bottom of the embankment.
plied by Maccaferri was used to reinforce
quantities of sub-surface water on this
“We also installed 250mm Kaytech
the wall. The material was specified due
site and our design had to make provision
wick drains which were wrapped with
to its very low elongation properties. It
for extensive drainage. In fact, there
bidem. And in areas with the heaviest wa-
also attains its tensile strength very
were some embankment sections where
ter flows, we positioned 100mm slotted
quickly and has a stretch factor of less
one could actually see water oozing from
pipes covered with stone and Geomesh
than 5%. The Paragrid reaches back to
the ground.
geotextile to trap the water at the cut
the cut face and was laid at a spacing
face. All ground water drains into a pipe
of every second block on the lower half
Drainage requirements
at the bottom of the wall, which runs
of the wall. Macgird WG4 was installed
“Three walls were open-face designs and
parallel to the foundation and feeds into
at every third block on the top half and
were built with Aveng Infraset’s Terrace
the stormwater drainage system.
extends 9m into the fill.
Blok TB490 and TB300 retaining wall
“The foundation of the perimeter wall
The parking basement wall was also
blocks. The other two walls were closed-
was steel-reinforced. One metre wide, it
built as a geosynthetic reinforced wall.
PRECAST | ISSUE THREE | 2015
ing’s loading. Maccaferri Paragrid was
ing than the perimeter wall as it has to
used to reinforce this wall to prevent
support a portion of the weight of the
any soil movement under the building’s
building, which was built on a jockey slab,
foundations.
concrete columns and normal foundations. Because of the heavier loading,
Team effort
the wall was built using the TB490 block
The second closed-face wall was built
only. “Basement walls are normally built
around a water reservoir situated on
with solid concrete retaining walling.
ground above the centre. This wall was
However, retaining block walls are more
constructed with Infrablok™ 350s at
cost-effective,” says Troskie.
a face angle of 75º and Macgrid WG4
Two closed-face walls were built using
was used for geosynthetic reinforcing.
Aveng Infraset attractive Infrablok 350
A combination of Macgrid WG4 and
at an angle of 85˚ due to limited space.
cement-stabilised backfill was deployed
The one wall, which varies in height
in areas where the space between the
between 1-3,4m was built adjacent to
reservoir and the concrete block retain-
a car-park feeder road and supports a
ing wall was limited.
building platform on which a Cashbuild
Other members of the professional
store was built. The walls were built
team included the main consultant,
around the concrete support columns
Endacon Consulting Engineers and the
and reinforced soil, and the retaining wall supports a portion of the build-
(Top): The 200m perimeter wall at its highest point of 12m.
main building contractor, Ikotwe Construction.
PROJECTS
Rising to 5,5m, it takes a heavier load-
29
LARGEDIAMETER PIPELINE PROJECTS CM A member Sout hern Pipeline Contractors (SPC) recently completed a number of large-diameter pipeline projects in and around Gauteng. According to SPC Sales Manager Steve Delport, recent projects include Mohgale Soweto, where a 700 litres (l/m) per minute pipeline required pipes with a 1 800mm internal diameter, and 2 160mm external diameter (Above): Steve Delport of SPC.
with an effective length
o f 2 82 0mm p er pip e . E ach pipe weighs approximately 8,4
tons at the point of transport. Another project was for Diepsloot water purification, where pipes were supplied for a 1 300l/m project requiring pipes with a 1 500mm internal and 1 800mm external diameter with an effective length of 2 960mm and a total weight of 5,9 tons. In Germiston pipes were also supplied for the B5 water feed pipeline and required a 2,5m concrete jacking pipe to be used throughout a busy metropolitan area. Pipes for this project were supplied for jacking as a sleeve for the steel pipeline. The pipes have an external diameter of 3 000mm and 2 500m internal diameter and are 1 600mm long, weighing about 8,8 tons per pipe. According to Delport, the pipes needed to be supplied in a very short time and relied on SPC’s ability to supply the requirements in accordance with contractor’s deadlines. Manufactured at their advanced factory in Boksburg, SCC (self-compacting concrete) was the preferred method of manufacturing, as the company has recorded astonishing results in the past 36 months using this process. “The end result of the re-engineering of our production lines has been the creation of a safer and healthier working environment, improved productivity with the added benefit of producing products of a higher quality with better aesthetics and finishes,” concludes Peter Lycklama, SPC Factory Manager.
CORRECTION: In our July 2015 issue we ran an article on the tilt-up precast concrete construction of a tyre factory in Ladysmith. The report said that the factory was owned by Sumitomo Rubber Industries and that it manufactured Kumho tyres, both of which are incorrect. The factory is owned by Sumitomo Rubber South Africa and it manufactures Dunlop tyres.
PRECAST | ISSUE THREE | 2015
PROJECTS 32
HOLLOW-CORE FLOOR FOR LARGE MULTISTOREY DEVELOPMENT
which meant that other services could
Echo Group company, Topfloor (a CMA member), has supplied over 16 000m² of prestressed hollow-core concrete flooring slabs for the construction of Lange Formal Township, the Western Cape’s first multi-storey, load-bearing reinforced concrete block-masonry development.
top sides hassle-free. All of these time-
Eighteen low-income-rental apartment
Each block houses 25 35m² apart-
staircase/slab interfaces and pull-up
blocks are being built by main contractor,
m e n t s c o m p r i si n g t w o b e d r o o m s,
bars for the reinforcing of the walkway
the Power Construction Group, which
kitchen/lounge, bathroom and balcony.
balustrades,” says Moore.
formed an integral part of the project’s
Moreover, insulated roofing and solar
architectural and engineering develop-
heating are included to meet conserva-
Many advantages
ment teams. Built for the City of Cape
tion requirements and reduce the cost
The Lange buildings have been designed
Town and situated on the Cape Flats off
of living for the occupants.
to comply with seismic codes and this
the N2, the development’s anticipated completion date is November 2015.
begin work as soon as the slabs were installed. Further time-savers were the smooth soffits and rough finishes on the upper sides of the slabs. This enabled the soffits to be painted without the need for skimming and made screed bonding on the saving advantages meant substantial cost-savings for the client. “Topfloor was involved in the primary as well as secondary planning stages and helped resolve details such as the
meant that Topfloor had to provide preAdditional products
cut openings for seismic-stress con-
In addition to the hollow-core concrete
nections. In addition, Topfloor supplied
flooring slabs, Topfloor also provided the
cut-outs for plumbing ducts. Topfloor
Power Group with precast staircases.
General Manager, Wessel Prinsloo, says
Other precast concrete elements included
another advantage of using hollow-core
high-strength concrete blocks, modular
flooring is its superior thermal and sound
precast concrete doorframes and win-
insulation properties.
dows, as well as poly-fibre balcony railings.
The professional team which initi-
According to Power Group Director
ated Lange’s design concept was led by
Johnny Moore, precast hollow-core slabs
Dieter Boessow of Architect Associ-
were an integral part of the structural
ates. Together with Power Construc-
design criteria and saved months in con-
tion’s project engineers and consulting
struction time. “No shuttering was re-
engineers, Aurecon, they succeeded in
quired nor curing time for wet concrete,
setting a new standard and establishing a new trend in cost-effective economic
(Top, from left): An aerial view of the Lange Formal Township housing development; one of the precast staircases supplied by Topfloor.
housing delivery in the Western Cape.
(Left, from top): Three of the Lange Housing Project’s apartment blocks nearing completion; close-up of some Topfloor hollow-core slabs used at Lange.
gained with this project points the way
Moore says that the fiscal benefits forward in labour-intensive skills development and job creation potential.
PRECAST | ISSUE THREE | 2015
Standards, however, always make it easier, safer and more efficient to produce these products,” says Evans. He adds that it is also important to relook at standards on a regular
Standards are essential to assist manufacturers meet the needs of end users and ensure quality, price and the longevity of the product.
basis to ensure they are still relevant
George Evans of PPC is passionate
and technologies change the way
about quality and believes that when established correctly, standards should comprise the distilled wisdom of experts within the industry to do things in a uniform and acceptable manner. “Standards are an agreed way of doing something and can cover a huge range of activities to form an average of normal
“Things have changed and we, as the concrete industry, need to constantly change with the times.”
to current practices. Test methods should also improve as times change construction is undertaken. “Currently the concrete industry is adopting overseas standards and our own local experts are reviewing and modifying them to meet our own specific standards. For example, SANS 3001 test methods need to be modernised and many others are under review at present.
ideas of what is acceptable. National
Certain EN standards have also recently
standards constitute a standard set by
been adopted and are being homogenised
the industry that are in line with the laws
by panels of experts.
of the country or customs of the industry
“Things have changed and we, as the
and that are acceptable to the end user.
concrete industry, need to constantly
“When an entire industry works ac-
change with the times. We need to
cording to set standards to produce
ensure that they do what they are
certain products, they can be used as
supposed to do and make quality, price
a powerful tool to increase the success and productivity of manufacturers.
ef f iciency and unif ormity simple to (Above): George Evans of PPC.
TECHNICAL
CHANGING STANDARDS TO REMAIN RELEVANT
obtain,” says Evans.
33
TECHNICAL 34
BENEFITS OF TECHNOLOGY Plasticisers have advanced in leaps and bounds since the early days with modern super plasticisers able to dramatically improve the workability of concrete and also allow it to achieve a 70% increase of its early 24-hour strength.
f ormwor k r elease time w i th f ewer
and late curing stages.
breakages as a result of the increased
“Plasticisers increase electrostatic
early str ength development of the
inter-particle repulsion, allowing en-
concrete. Depending on the type of
trapped water in the cement particles to
products and quantity required, the
be liberated and thus improving workabil-
time shaved off the concrete
ity. Cement particles are also more uni-
production process can
formly distributed due to electrostatic
easily offset the additional
charge provided by the side chains found
cost of the plasticiser.
on the backbone of the super plasticiser polymer. Super plasticiser polymers can
Less water
now be specifically designed to have
For example, standard Cem
According to admix special-
increased water reduction and shorter
42.5R can reach a strength
ist Craig Handler, Concrete
open time, with faster setting charac-
of 28MPa within just a day
Services Manager of Sika
teristics, making them ideal for precast.
by using a super plasticiser
South Africa, the use of a
“Accelerators use a different mecha-
plasticiser has the added ad-
nism from plasticisers, but also allow
vantage of producing higher
increased early strength, with quicker
early and final strength in
setting times. This directly affects the
lent by the super plasticiser has been
concrete as a result of using less water,
early strength in the first 24 hours,
developed to allow similar workability
which allows the cement crystals to form
whereafter the strength development will
characteristics as standar d mixes
closer together. This allows a denser
be similar to non-accelerated concrete.
despite the use of less water.
structure of crystals to form across
“Accelerators come into their own
the curing cycle, both during the early
in low-temperature scenarios or where
which cuts the water content by 25% of that of the usual mix. The improved workability
(Above): Craig Handler of Sika speaks at the recent CMA AGM at Emperors Palace recently.
T he end r esult will be a quicker
after initial curing. They are also ideal for concrete steam curing as they are able to reduce the amount of steam curing that is needed to achieve the required early strength, thereby reducing concrete production costs,” says Handler. Precast applications He adds that a number of modern methods are par ticularly suited to
“Admixtures allow faster casting times, easier casting in confined areas and allows complex shapes to be cast.”
well as allowing concrete casters the opportunity to make more intricate and complex shapes. Semi-dry concrete has been used for some time to make especially economical concrete products that maintain their shape directly after casting, eliminating the need for expensive moulds. Because this type of concrete has low workability it needs intensive, even vibration to achieve compaction and, once cast,
using plasticisers. These include self-
is sensitive to dehydration, therefore
compacting concrete (SCC) and semi-dry
fluctuations in quality can occur if the
concrete applications, among others
compaction and curing procedure are
that are becoming a popular choice of
not carefully controlled. “Plasticiser for this type of concrete
our precasters. T h e u s e o f p l a s t i c i s e r s in S C C
improves compacting ef ficiency. You
ensures ultra-high workability and flow
achieve better compaction with better
ability. It compacts under its own weight
surface finish, as well as better early
and the use of admixtures allows faster
and final strength development. It also
casting times, easier casting in confined
contributes to an increase in the cement
areas and enabling complex shapes
paste at the concrete surface, increas-
to be cast. Although it costs more in
ing lubrication. This improves the life of
material, the benefits are numerous
machinery. The increase in compacting
and quicker placing is possible with no
efficiency produces a more consistent semi-dry concrete product, ultimately
vibration required. This creates a better working environment with less noise, as
(Above): Improved workability due to steric hindrance.
TECHNICAL
there is a fast application of load shortly
improving quality,” says Handler.
35
TECHNICAL
HOW TO USE RE Mistakes that precast manufacturers make when specifying, ordering and receiving concrete can have far-reaching effects on products built by them and may affect the future strength and performance of the structures.
36
According to CMA member the Southern
ensure that concrete supplied is fit-for-
Africa Readymix Association General
purpose and complies with Sans 878:
Manager, Johan van Wyk, it is very
2004 for generic readymix concrete.
important that project managers, as
Thereafter your technical requirements
well as everyone involved in ordering
for the concrete can be laid out and you
and buying concrete, learn the right
can agree with the readymix company
processes and procedures to use when
on the type of tests that need to be
working with the most important building
performed on site.
material of them all.
“If you are unsure of the best way,
“There are hundreds of dif ferent
then ask the readymix company – it has
types of readymix available on the market
a lot of experience in the field and it pays
for use in different applica-
to check the details with
tions. But it is important
its technical staff before
to remember that it can be
finalising your specification.
supplied in different forms to make allowance for workabil-
Ordering correctly
ity and many other factors
“When making the final ar-
that can affect the success
rangements and ordering,
of concrete on site. The rela-
always use the specification
tionship between the buyer/
that you have drawn up and
user and the professional
discuss your exact needs on
readymix company therefore needs to be
site. If the project is big or difficult, then
accurate and measured,” he says.
it is a good idea to have the readymix company’s technical staff on site to look
(Above, right): Johan van Wyk of Sarma. (Above, from top): A slump test to check the characteristics of the concrete; agree on methods of receiving concrete on site; workability is must be specified.
Getting concrete right
at the way it should be done and look out
Van Wyk explains: “The most important
for any possible problems.
thing is to make sure you are dealing with
“ Your specif ications need to be
a reputable readymix company upfront.
made very clear and you need to make
The only way you can do this is to make
sure that the strength and working
sure you deal with a Sarma-accredited
characteristics of the concrete are
company. In this way, there can be no
right for the job. You also need to say
confusion about meeting quality stand-
exactly how much is required where
ards and honest business practices are
and when – remember that you can be
ensured. Precast manufacturers and
charged a fee if any of the concrete
specifiers can rest easy knowing that
needs to be disposed of (thrown away)
they are dealing with a professional
if it is not used on site. Workability and
organisation.
slump (consistency) of concrete must
“It is important to remember that all
be agreed and you need to discuss the
Sarma plants are checked and audited
type of equipment that will be used to
to make sure they have the right staff
receive the concrete.
and processes to make quality products.
“Talk to the technical people about
They look after the environment, as well
how you plan to place the concrete on
as the health and safety of workers and
site and discuss your plan for how the
surrounding communities. In addition
concrete will be moved around the site.
Sarma members also have to comply with
For example, if it is to be moved via
road traffic regulations and rules to make
wheelbarrows, it is important to know
sure they are safe on the road.
that the average mixer carries at least
“When using a Sarma member, you
90 wheelbarrow loads – so it cannot
and your client are also guaranteed that
possibly be of floaded by a couple of
the company has the necessary skills to
labourers with wheelbarrows.
PRECAST | ISSUE THREE | 2015
Fresh concrete
truck can get to the point of discharge
of quality requirements and cost-savings.
“When a truck arrives with new, fresh
(Sarma members do assist by visiting
Customers want the reassurance of
concrete, then the time it takes to use
sites beforehand to look out for any
knowing that there are no strength
the concrete is very important. Remem-
potential shortfalls, if required.)
concerns or failures that may ruin the
ber, experts say that you have seven
“Next you have to discuss the how the
project. Also, with readymix there is less
minutes per cubic metre to offload and
concrete will be cured and ensure that you
need for storage and no theft onsite and
place the concrete. If the truck stands
are happy with the testing methods and
customers prefer having a clean site with
for too long, the concrete may begin to
that they are being adhered to. Also, have
no leftover concrete and waste when the
go hard and change its workability char-
a clear procedure to follow if the tests fail
job is done.
acteristics, which may affect the end
at any point in the delivery, placing and
result. Also, if the truck stands too long,
curing of the concrete.”
you may be charged a fee called ‘demur-
“Remember, professional readymix concrete suppliers can supply a wide range of mixes to suit different require-
rage’. A good tip is to first agree with the
Concrete on site
ments and have ready-made design mixes
readymix company on the rate of offload-
Few precast manufacturers realise that
for all the different applications (walls,
ing on your site.
if the planning is done correctly at the
retaining walls, façades, etc). This is far
“Last, but not least, always make
time of specification and ordering, then
easier, as site mixing designs takes a long
sure that your workers are ready and
the job of accepting concrete on site is
time and has to move from design to ap-
that they have the right equipment and
much easier. Van Wyk reminds precast-
proval and testing and this takes 28 days,
tools needed to be able to accept the
ers to follow the right steps to make
if done correctly. Using readymix also
concrete when the truck arrives. Also,
sure that the correct specification and
gives builders the flexibility to use many
make sure that you have organised ac-
handling methods are put in place.
different types of concrete on the same
cess for the truck in terms of permis-
“The reason behind the strong shift
sion, physical space and how close the
towards readymix is most often a result
site at the same time, while site mixing can only deliver one type at a time.”
TECHNICAL
EADYMIX CONCRETE
37
TECHNICAL
Speaking at the recent ASAQS seminar, “Building on Sunshine”, held in Johannesburg, Dr Letchmiah, who is CEO of the LDM Group and represents ASAQS on the Green Building Council of SA (GBCSA), said the days of quanitity surveyors’ role in the building environment concentrating
38
mainly on cost control, are over. “Modern quantity surveyors need to consider the driving forces of the green environment in which they operate. They
GROWING ROLE OF QUANTITY SURVEYORS The increasing emphasis on sustainable construction has placed new and unprecedented responsibilities on the shoulders of the quantity surveying profession, Dr Deen Letchmiah, board member of the Association of South African Quantity Surveyors (ASAQS), has stated.
need to be holistic in thought and execu-
realise that all components of structural
• Procuring goods, services and leases
tion to drive sustainability directives and
development and operations must be re-
• Managing contracts and
viewed to provide sustainable solutions,”
sub-contracts
he told the more than 200 delegates
• Understanding building
from all over the country who attended
the first ASAQS annual seminar.
• Integrating information and
management systems management systems.
Core skills
* ASAQS is currently conducting an in-
He also urged quantity surveyors to play a
depth and ongoing research study for the
bigger role in facilities management. Some
Green Building Council of SA on the com-
of the core skills in this category included:
parative costs of “green” and conventional
• Construction, building technology
design and construction, and a progress
and maintenance costs
report and preliminary findings of the study
• Estimating and budgeting
were revealed to the GBCSA during the
• Cost control and reporting
Building on Sunshine seminar.
• Managing building operations • Life-cycle costs • Understanding building components
and functionality
(Left): Dr Deen Letchmiah, board member of ASAQS, has warned that sustainable construction places new responsibilities on the quantity surveying profession.
PRECAST | ISSUE THREE | 2015
TECHNICAL 39
ELECTRICITY TO BECOME AN
EXPENSIVE COMMODITY We will never have cheap surplus energy again! That is the word of Andre De Klerk, Senior Advisor: Demand Side Management (DSM) for Gauteng and Ekurhuleni.
supply with possible load-shedding will be
walk-through audits at companies to
with us for at least another two-and-a
help them improve energy-efficiency.
half years. It is therefore advisable to
Management and staff need to be aware
have contingency plans and to adopt
of the need to save energy and therefore
efficient processes, where possible.
need to look at the big consumers of
He says that the country’s electricity
This can reduce the overall load on the
capacity is stretched with an overall
grid significantly. Every little bit helps;
within concrete plants include:
generating capacity of 40 Gigawatts
no matter how insignificant it may seem,
• Pumps
“We also have to look at power-saving on an individual and company-wide basis.
electricity within a company and ways of optimising these for efficiency. Common high consumers of electricity
(GW). However, at any
it can have a big effect
• Compressors
given time, at least 10%
on the overall grid. For
• Fans
of the available units are
example, every kilowatt
• HVAC
shut down for planned
(KW) saved at a company
• Lighting
maintenance, while a fur-
or concrete plant saves
• Water heaters
ther 10% are not available
10K W at the point of
due to unplanned main-
generation.
Industrial companies can also look at improving thermal efficiency of pro-
tenance, leaving the grid
“That means by simply
cesses where heat is used. Staff can be
with an effective 32GW
switching of f air-cons
trained and responsible people may be
of available power supply.
or heaters when you go
appointed within organisations to look
The problem is that
out or turning of f the
after energy. Even at home individu-
compr essor or pumps
als can replace lights with low-energy
a peak of about 33GW in summer and
when they are not in use, you are saving
alternatives, install low-flow shower
35GW in winter and needs another 15%
the grid and reducing the risk of load
heads and set pool timers to work
spare capacity to avoid overpowering
shedding,” says De Klerk.
outside of peak times. Solar or other
S o u th A f r i c a r e a ch e s
(Above): Andre De Klerk of Eskom.
the system. While the two large, new
renewable energy sources can be used
coal-fired power stations are being
Saving the day
built, there is little room for Eskom
He advises that Eskom has programmes
“The bad news is that even despite
to manoeuvre and whenever there is
to help companies reduce electricity
these savings, the country needs to
a danger to the grid, it is forced to
consumption and are able to conduct
install more generating capacity and
implement load-shedding. Manufacturers take note “We ther ef or e ad v ise concr ete manufacturers to be aware of the fact that the current restrained electricity
PRECAST | ISSUE THREE | 2015
where possible.
this is a costly exercise. The recent 16%
“We will continue to pay higher tariffs for electricity in future.”
tariff increase did not even cover the input costs for fuel and manpower, etc, so we will need to continue hiking tariffs for electricity in future. The days of cheap electricity are over,” says De Klerk.
GLOBAL VIEW 40
The human race first started using concrete thousands of years ago in one form or another, but it was only in the 1700s that the materials really rose to prominence once again. Since then it has been seen as a mostly utilitarian building product that is dull in colour and mostly dull in the applications in which it is used. But a growing trend worldwide is to use concrete for decorative purposes and make use of its special characteristics to make eyepopping creations. In most instances, the decorative concrete in question is precast and specially manufactured under specialist factory conditions to meet specific requirements of architects and forward-looking engineers. In this regard, concrete is being used to make anything from façades to furniture and fixtures. Bare concrete Across the globe concrete manufacturers are finding innovative ways of using concrete and equally innovative mixes, additives and aggregates to make “good-
HARNESSING THE BEAUT looking” concrete. But, increasingly,
cement and the concrete can be dazzling.
concrete in its raw and beautiful natural
At the same time, add form and shape
state is also being appreciated and used
and think outside the box, and Voila! The
in its bare state with no paint, polish or
next concrete masterpiece is about to
other niceties.
be born in the form of a basin, a bench,
Then there are those who look deeper
a façade or anything else. As long as it
into concrete and expose its internal
still serves the purpose it was intended
magic through polishing, with the insides
for, there is absolutely no harm in making
of the concrete exposed and ‘shined-up’
it decorative at the same time.
for everyone to see. Even in its raw Portland Cement, plain aggregate and
Local take
building sand mix it is possible to polish
Even though South Africa is far behind
concrete to a highly attractive finish fit
many of the developed countries in de-
for counter-tops and decorations. Add
veloping and using decorative concrete
coloured aggregates and perhaps white
there are proponents of the skill who are making waves in concrete circles locally. One such person is Johan Coetzee of World of Decorative Concrete whose creations have graced the covers of magazines and fill glossy architecture and interior decoration publication pages. “We create concrete with soul. Just because it is made of concrete, that doesn’t mean it must be boring. If you want to create an attractive product,
PRECAST | ISSUE THREE | 2015
TY OF CONCRETE you need to plan correctly to have the quality and finish that you require. Or if your product is flat, you can transform it with polishing which is still to reach its full potential here and globally – it is a thing of the future. “Then there is the colour of cement, sand and aggregate that can be changed to give an ever-lasting colour. Other finishes use acid staining, water staining, polymer cement overlays, plaster cementitious vertical plasters and more. Simply
draws attention and transforms an in-
changing the surface of the concrete can
terior to the extent that concrete is the
change the concrete to be highly attrac-
focal point, rather than a simple building
tive and sought-after.
material,” says Coetzee.
“The use of different finishes can be
In a competitive environment it is per-
highly effective – for example, a polished
haps a good time for precast manufac-
surface used with an off-shutter con-
turers to explore the use of techniques
trast and plastered surface suddenly
to manufacture decorative concrete to supplement their existing product
“The use of different finishes can be highly effective.” PRECAST | ISSUE THREE | 2015
ranges. Who knows, perhaps they may stumble upon “the next big thing”. (Above and left): Decorative concrete and finishes produced by Johan Coetzee of World of Decorative Concrete.
PRODUCTS
NEW FACTORY TO MEET GROWING DEMAND Elematic South Africa (ESA) has constructed an all-new plant to double its output capacity and meet growing demand for its precast hollow core
42
concrete slabs. The new plant boosts capacity of the initial manufacturing facility by adding a further eight 120m long extruder beds to the existing factory’s equally sized capacity. According to Craig Webber, director at ESA, the expansion was due to high
Rand since 2007, using internationally
tion line experiences minimal delays, it
demand for ESA’s products. “Property
respected precast technology. “The
is important to have as reliable a supply
developers and building contractors
extrusion methods we use are well
of raw materials as possible. To ensure
have seen the benefits of using precast
k n o w n in th e in dus tr y t o p r o du c e
a long term reliable supply of aggregate,
concrete floor slabs over the years and
quality hollow core slabs,” Webber adds.
Elematic’s holding company acquired
demand has been surging,” he says. “The
Elematic itself is a well established
Atoll Mining, a dolomite quarry situated
product is becoming more widely used as
international brand. It was established
about 500 metres from the company’s
it is well known to save time and money
in Finland in 1959 and currently has a
main factory. Apart from ensuring a
during the construction process. Over
presence in over 100 countries on six
reliable aggregate supply, additional
and above that, we have always aimed
continents worldwide. Added to this is
benefits are the high quality and consist-
to provide a good and reliable service to
the fact that Elematic South Africa’s
ency of the aggregates supplied by Atoll
our customers.”
production facility is ISO 9001 certified
Hollow core concrete slabs continue
and all its products carry the SABS
to grow in popularity as construction
mark of quality.
timelines are pressurised and contrac-
ESA has been manufacturing precast hollo w- c or e c oncr e t e slab s a t i t s manufacturing plant on Gauteng’s East
In order to ensure that the produc-
tors require reliable solutions.
PRODUCTS
DRY MORTAR PRODUCTS LAUNCHED Concrete materials company, AfriSam, has r esponded to demands f or increased convenience by introducing its premium-quality Dry Mortar product to the market.
43
Amit Dawneerangen, Sales Manager for AfriSam’s Gauteng region, says that immediate access to an already blended dry mortar solution is very attractive to South Africa’s time-pressed and c o s t- c o n s c i o u s c o n t r a c t o r s . T h i s product adds to the CMA members’
Adding value
range of concrete solutions and ensures
The product is supplied in 10- or 20-ton
tha t contr ac tor s ha v e a one-stop
silos. This is a space-saving advantage
solution for all their wet trades, ranging
on a construction or building site as it
f r om r eadymix concr ete of var y ing
effectively eliminates the need to ac-
strengths and specifications to cement,
commodate large stockpiles of sand and
aggregates and dry mortar.
frees up the area normally used to store
“The AfriSam Dry Mortar mix offers
bagged cement. Supplying the product in
contractors a number of benefits in
either 10- or 20-ton silos offers optimum
addition to time- and cost-savings.
flexibility for all customers, who can then
Using a pre-blended mortar mix will
decide on the size required, based on
enable optimum product integrity and
individual project requirements.
(Above, left): By attaching a mixer and water connection to the silo, a ready-to-use product is discharged when the dry mortar comes into contact with the water. (Above): AfriSam has responded to demands for increased convenience by introducing its premium quality dry mortar product to the market.
subsequently quality construction on a
The 10-ton silo is delivered fully loaded
project. Manual blending of mortar or
from the AfriSam facility, while the 20-
plaster requires careful attention to
ton silo is delivered to site empty and
by using the dry mortar silos, theft is
ensure that the correct ratios of sand
filled via bulk tanker. Discharge into the
virtually eradicated and there is a similar
and cement are used and incorrect
silo is conducted using a closed convey-
significant reduction in wastage. There
blending or mixing will affect the quality
ance system, which ensures product
are also other environmental and conveni-
of the final product and may result in
integrity and the elimination of dust dur-
ence benefits, such as fewer vehicles on
cracking of plaster. Our dry mortar
ing the process. Not only does this guar-
the road delivering raw materials to site.
solution alleviates human error and goes a
antee optimum quality of the product,
Instead of having separate deliveries for
long way to ensuring quality workmanship
but the process also complies with all
sand and cement, these now arrive in one
– something contractors have identified
the requisite environmental regulations.
vehicle. Procurement is simplified with the
as one of their greatest concerns these
To add to this, stockpiled building
number of suppliers reduced, as is the
days,” says Dawneerangen.
materials are often pilfered on site and
amount of raw materials on site.
GEOSYNTHETICS ASSISTANCE Geosynthetics supplier
from the company’s library and other
Kaytech, a member of
technical advice is offered, while users
Other useful links are designed to as-
the CM A, has devel-
will also be able to ask technical ques-
sist users with requirements quickly and
oped an application that
tions or even request training.
efficiently, with information on the near-
dations for any geotextile requirements.
gives users access to
As far as precast manufacturers or
est branch just a click away. The app is
wide-ranging geosyn-
their customers, as well as consulting
available for Windows phones, Android and
thetic support at the
engineers are concerned, the applica-
iPhones, as well as desktop applications.
touch of a smartphone
tion also allows design requests to be
screen. The “KayApp”
submitted where users can get help
also allows user s to
with designs on subsoil drainage, ground
connect to the company’s technical
stabilisation, road maintenance, haul
team for advice and support.
roads, mine waste containment, landfill
In addition it allows order requests
linings and cappings, dam linings, sludge
to be made online and allows specifica-
dewatering, erosion control, coastal
tions to be entered for a quotation and
erosion protection and DIY. An expert
delivery date. Data sheet, information
will respond with application recommen-
PRECAST | ISSUE THREE | 2015
MANUFACTURER MEETING TIGHT SCHEDULE IN DOHA A double-station VIHY Multicast machine that was recently installed in Doha is helping meet the requirement for pipes in one of the world’s fastest-growing cities. The capital city of Qatar has been undergoing dynamic development in recent years, with a population growth that has risen from less than 400 000 people in 2000 to a staggering 1,8 million inhabitants just 15 years later. With no capable precast pipe manufacturer in the city before 2009, all pipes for sewage and stormwater had to be imported from Saudi Arabia, Kuwait and the UAE. The VIHY Multicast machine was selected for its high production capacity and flexibility to handle a wide range of product types and sizes, making it ideal for companies that offer broad product ranges. This was identified early in the feasibility stages and was installed to complement existing machines and meet rising demand for quality products. Today the company is the only local supplier of drycast concrete pipe products in Doha, with products ranging from 300-2 500mm. In collaboration between Doha Precast Factory (DPF) and CMA member HawkeyePedershaab, a long-term plan for the plant site in the Mesaieed Industrial City was developed not only for a single drycast concrete vibration pipe machine, but for several casting stations to be installed in more stages. Thanks to this close cooperation, the company is now also in a position to meet requirements for jacking pipes in diameters up to 3 600mm. The company upholds international standards including BS, ASTM, ACPA, DIN, ATV and the local standards of Qatar’s Public Works Authority (ASHGHAL). DPF has moreover received a BSI Kitemark and has been awarded membership to the coveted and prestigious American Concrete Pipe Association (ACPA) in 2011 and Jackcontrol, Switzerland in 2012. One of the most advanced up-to-date concrete laboratory and test facilities in the Middle East has been installed and DPF’s unique product registration system ensures its clients receive quality products. Plant description HawkeyePedershaab’s main scope of supply since 2009 has comprised the following: • Two double-station VIHY® Multicast SCC 250 machines • Mould equipment for DN300-2 500mm pipes • Product handling equipment • Pipe coating equipment.
(Above, from left): A HawkeyePedershaab mould installed at the Doha Precast Factory in Qatar; a completed pipe in the pipe clamp.
PRECAST | ISSUE THREE | 2015
As part of an extensive modernisation
liquid component for the abe cementi-
and expansion programme, abe Con-
tious product range. The acquisition
struction Chemicals, part of the Chryso
of the tank follows the installation of
Group, has virtually completed work on
new bulk liquid mixers about two years
the installation of new high-
ago during phase one of the
technology equipment at both
Boksburg expansion project.
the company’s Boksburg and
The new 50m3 bulk tank offers
Isipingo factories.
several benefits, including bet-
Mario Marais, GM: Opera-
ter consistency of product due
tions of the Chryso Group, says
to the elimination of multiple
an important benefit of the
batches of raw material.
investment in new equipment
pansion project will be the installation
to sustainability which covers economic,
of an automated packaging unit at the
social and environmental commitments
Ekurhuleni facility, and a second auto-
through increasing its pioneering dust-
mated valve bag-filler is also planned for
less production of powdered cementi-
Boksburg,” Marais explained.
tious products at Boksburg and boosting skills upliftment within the group.
45
“The third phase of the ex-
is intensifying the group’s commitment
At its Isipingo production plant, abe is currently installing a new automated
He says the first component of the
dispensing line for viscous two-compo-
expansion programme was the recent
nent products. This new production line
installation of a new bulk emulsion
will enhance the company’s epoxy and
tank at the abe plant in Boksburg. This
polysulphide production capability and
towering stainless steel structure is
improve speed-to-market for these key
increasing the production rate of the
abe products.
PRODUCTS
FACTORY MODERNISATION ON TRACK
(Above): The new bulk emulsion tank installed at the abe plant in Boksburg is substantially increasing the production rate of the company’s cementitious product range. (Left): Mario Marais, GM: Operations of the Chryso Group, says an important benefit of the investment in new equipment for the abe plants is raising the group’s commitment to sustainability.
PAVING MANUFACTURER ACQUIRED CMA member Technicrete ISG, part of the Infrastructure Specialist Group (ISG), has acquired concrete and precast manufacturing company Cast Industries. This makes the company one of the leading suppliers of paving and kerbing products within Gauteng. Guinevere Thomas, Group Marketing & Communications Manager for ISG, says: “This acquisition will increase Technicrete’s market share within the paving market, increase our (Above): Guinevere Thomas.
customer base and augment our production capabilities. With the increase in production capacity, we will be able to satisfy
market demands, and service existing and future customer needs.” The acquisition includes the operations, staff and assets currently associated with Cast Industries, whose trading name ceased to exist after 1 July 2015.
HOLLOW-CORE SLAB PRODUCERS MERGE
Cape-based CMA member and hollow-core slab producer, Portland Hollowcore, has
(Above): The newly extended Portland Hollowcore stockyard.
merged with Bobcrete, supplier of hollow-
streamlined group has greater capacity
core slabs to the Western Cape market
and is more cost-effective. It will provide
for the past 28 years.
all our customers with the numerous
The merger entails the closure of Bob-
advantages of slabs produced with the
crete’s manufacturing facility in Belville
latest in plant and machinery and they can
South. All operations were moved to the
look forward to improved quality, service
recently expanded Portland Hollowcore
and pricing – clearly a win for all.
factory, even though Bobcrete will con-
“Since the merger, both companies
tinue to operate under its own name
have maintained their individual market
until its pre-merger order book has been
shares,a factor which now makes us one
fulfilled. Thereafter, Bobcrete will cease
of the largest hollow-core players in the
to exist as a separate brand and its loyal
Western Cape. Normally winter is a quieter
customer base will be serviced by Port-
period in the industry, but this year output
land Hollowcore.
ran at 100%.
All Bobcrete employees were offered
“The hollow-core market is experienc-
jobs at Portland Hollowcore and one of
ing exceptional growth as it is faster and
Bobcrete’s founders and a former Murray
more cost-effective than in situ equivalent
& Roberts Director, Phil Surridge, has
because it dispenses with scaffolding,
taken on the role the Sales Manager of
shuttering, reinforced steel fixes, the
the hollow-core department.
concrete gang and the carpenters. In addition, legislation is forcing businesses to
Latest technology
move away from labour-intensive in situ
Nico Heyns, Portland Hollowcore MD,
construction.”
says the merger gives the combined
The merger took place when Portland
group improved economies of scale and
Hollowcore was installing extra casting
will leverage the technical skills of Bob-
and cutting equipment, and this additional
crete’s engineering expertise. “The new
capacity facilitated a smooth transition.
PRECAST | ISSUE THREE | 2015
Ongoing investment in technologically
contractors who prefer the quality
advanced block-making equipment sup-
of surface of their stock, as well as
ported by an ever-vigilant eye on quality
the peace of mind that the Standard
has led to the meteoric rise of VakaCon-
Association of Zimbabwe certification
crete as a force to be reckoned with in
offers to users.
the Zimbabwean precast industry.
47
The focus on quality does more than
Always at the front of the queue to
just increase sales – it also saves the
introduce new technologies, the company
company money, according to Muindisi.
has steadily earned a reputation for the
By carefully controlling quality at every
high quality of its products, as well as the
step of the process from raw material
excellent surface finish and aesthetics of
procurement to manufacturing and de-
its bricks and blocks.
livery of the end product, VakaConcrete
According to Managing Director,
is able to maintain a better than 98%
Tawanda Muindisi, the company pays par-
quality ratio, with minimal scrap and
ticular attention to developing in-house
reworking required.
expertise. He adds that membership
“This is largely because of the care
of the CMA gives the company access
we take to source and procure raw ma-
to the large knowledge base within the
terials and our investment in the best
organisation. In addition, by associating
available technology,” he adds. “Also,
Future plans
with equally ambitious and quality-orien-
in Zimbabwe we now have access to
“We have established two plants in
tated companies across borders within
42,5Mpa cement, which allows us to
Harare and Gweru and plan to roll out
the ranks of the CMA, the company is
improve even further. Our continuous
to all the major centres in order to
able to gain insight into emerging trends
investment in skills development of our
capitalise on high levels of growth in the
and developments that may affect the
people also pays dividends and puts our
construction sector. This is a result of a
business or bring new opportunities.
company in a stronger position with a
sharp increase in mining activity, as well
higher level of qualified staff.
as an uptick in the residential housing
(Above and below): VakaConcrete plant in Harare.
market,” he says.
Technology-driven “We started operations in 2012 and
Zimbabwe currently has an estimated
began with the core business of making
shortfall of 1,5 million houses in the
concrete brick pavers and blocks. From
middle and higher end of the market. As
the outset, we wanted to provide un-
it’s economy stabilises and begins to
matched quality and chose to make use of
grow, the demand for bricks and blocks
the best technology available from Birk-
is also expected to increase dramatically.
enmayer South Africa, one of the largest
Muindisi concludes that support and
and most renowned equipment suppliers
technical assistance from the company’s
in the sub-region. We purchased the top-
South African equipment supplier is
of-the range HB68 machine with a capac-
superb and has enabled it to excel amid
ity of 140 000 bricks per nine-hour shift
fierce competition. In turn, VakaCon-
to launch our operation,” says Muindisi.
crete has also been singled out and
He explains that the company has
complimented by Birkenmayer SA on the
especially found a niche for itself in the
efficient operation and high-quality main-
paving market, with pavers accounting
tenance that the company undertakes,
for approximately 70% of production. These have rapidly found favour with
PRECAST | ISSUE THREE | 2015
(Above): Tawanda Muindisi, Managing Director of VakaConcrete, with Frans Minnaar of the CMA.
AROUND & ABOUT
ZIMBABWE MEMBER SHOWS THE WAY
resulting in lower-than-usual technical problems and high production outputs.
MEMBER LIST 48
PRODUCER MEMBERS A FICK SEMENTWERKE BK Tel: 022 913 2370 Province/Country: Western Cape Pillar: PB AVENG MANUFACTURING INFRASET (12) Tel: 011 876 5500 Province/Country: Gauteng Pillar: PB/PI
Province/Country: Western Cape Pillar: PB MONIER ROOFING SOUTH AFRICA (10) Tel: 011 222 7300 Province/Country: Gauteng Pillar: PB MVA BRICKS Tel: 012 386 0050 Province/Country: Gauteng Pillar: PI
BAY BRICK Tel: 035 792 5218 Province/Country: KwaZulu-Natal Pillar: PB
PANDA GROUP (2) Tel: 00267 244 2107 Province/Country: Botswana Pillar: PB/PI
BOSUN BRICK (2) Tel: 011 310 1176 Province/Country: Gauteng Pillar: PI
PORTLAND HOLLOWCORE SLABS (PTY) LTD Tel: 021 972 1111 Province/Country: Western Cape Pillar: PB
BRICKCAST INDUSTRIES CC Tel: 031 507 5525 Province/Country: KwaZulu-Natal Pillar: PI C.E.L PAVING PRODUCTS Tel: 021 905 5998 Province/Country: Western Cape Pillar: PI CIVIL WORKS Tel: 011 903 7023 Province/Country: Gauteng Pillar: PI CONCRETE UNITS (2) Tel: 016 362 2236/021 386 1923 Province/Country: Western Cape/ Gauteng Pillar: PB/PI
REMACON PRODUCTS CC Tel: 011 393 5504 Province/Country: Gauteng Pillar: PI REVELSTONE (CAPE) (PTY) LTD Tel: 021 761 9739 Province/Country: Western Cape Pillar: PB ROCLA (12) Tel: 011 670 7600 Province/Country: Gauteng Pillar: PB/PI SHUKUMA BRICKS Tel: 041 372 1013 Province/Country: Eastern Cape Pillar: PB
CONFRAMAT Tel: 0861 33 5599 Province/Country: Gauteng Pillar: PB/PI
SILVERTON PRECAST (PTY) LTD Tel: 012 804 4525 Province/Country: Gauteng Pillar: PB
COROBRIK (PTY) LTD Tel: 031 560 3111 Province/Country: KwaZulu-Natal Pillar: PI
SIMSTONE (PTY) LTD (2) Tel: 016 362 2181 Province/Country: Gauteng/ Eastern Cape Pillar: PB/PI
DERANCO PRECAST Tel: 041 933 2755 Province/Country: Eastern Cape Pillar: PB/PI EAGLE ROOF TILES (PTY) LTD (4) Tel: 044 874 0290 Province/Country: Western Cape Pillar: PB ECHO GROUP (3) Tel: 011 589 8800/8899 Province/Country: Gauteng Pillar: PB ENVIRO-CAST (PTY) LTD Tel: 016 004 0018 Province/Country: Gauteng Pillar: PI FASTDECK (PTY) LTD Tel: 002677 3971974 Province/Country: Botswana Pillar: PB INCA MASONRY PRODUCTS (2) Tel: 043 745 1215 Province/Country: Eastern Cape Pillar: PB/PI KEYSTONE WALLING Tel: 082 850 3512 Province/Country: Gauteng Pillar: PB/PI LATEGAN CEMENT WORKS Tel: 021 873 1154 Province/Country: Western Cape Pillar: PB MARLEY ROOFING (6) Tel: 011 316 2121 Province/Country: Gauteng Pillar: PB MOBICAST (PTY) LTD Tel: 044 874 2268
SMARTSTONE (13) Tel: 011 310 1161 Province/Country: Gauteng Pillar: PB SOUTHERN PIPELINE CONTRACTORS Tel: 011 914 8500 Province/Country: Gauteng Pillar: PB/PI TECHNICRETE (6) Tel: 011 674 6900 Province/Country: Gauteng Pillar: PB/PI TOPFLOOR CONCRETE (2) Tel: 021 951 7700 Province/Country: Western Cape Pillar: PB VAKA CONCRETE (PTY) LTD (2) Tel: +263 864 4088 100 Province/Country: Zimbabwe Pillar: PI VANSTONE PRECAST (PTY) LTD Tel: 012 541 2056/1808 Province/Country: Gauteng Pillar: PI WEST END CEMENT BRICKS (PTY) LTD Tel: 011 851 1005/1063 Province/Country: Gauteng Pillar: PI ASSOCIATE MEMBERS ARQ CONSULTING ENGINEERS (PTY) LTD Tel: 012 348 6668 Province/Country: Gauteng ASPASA Tel: 011 791 3327 Province/Country: Gauteng
BRITISH PRECAST CONCRETE FEDERATION Tel: 044 116 253 6161 Province/Country: United Kingdom CONCRETE PLANT INTERNATIONAL Province/ Country: Germany CONCRETE SOCIETY OF SOUTH AFRICA Tel: 012 348 5305 Province/Country: Gauteng ILIFA AFRICA ENGINEERS (PTY) LTD Tel: 012 362 1473 Province/Country: Gauteng JC PAVING CONSULTING Tel: 011 431 0727 Province/Country: Gauteng SARMA Tel: 011 791 3327 Province/Country: Gauteng SEKHUKHUNE & ASSOCIATES Tel: 012 993 4776 Province/Country: Gauteng SNA CIVIL & STRUCTURAL ENG Tel: 012 842 000 Province/Country: Gauteng TACO VOOGT CONSULTING ENGINEERS Tel: 079 505 7840 Province/Country: Gauteng
KAYTECH Tel: 031 717 2300 Province/Country: KwaZulu-Natal KERNEOS SOUTHERN AFRICA (PTY) LTD Tel: 011 444 3090 Province/Country: Gauteng KOBRA MOULDS BV Tel: 003111 356 2460 Province/Country: Netherlands MANITOU SA (PTY) LTD Tel: 011 975 7770 Province/Country: Gauteng OCEM Tel: 0039 055 658 0120 Province/Country: Italy PAN MIXERS SA LTD Tel: 011 578 8600/8701 Province/Country: Gauteng PEGASO STAMPI SRI Tel: +39 0577 992635 Province/Country: Italy QUADRA Tel: 0033 67941 2644 Province/Country: France QUANGONG MACHINERY CO LTD Tel: 00865 958 679 9299 Province/Country: China SIKA SOUTH AFRICA (PTY) LTD Tel: 031 792 6500 Province/Country: KwaZulu-Natal
TERRAFORCE (PTY) LTD Tel: 021 465 1907 Province/Country: Western Cape
TECHMATIK SA Tel: 00484 803 690 811 Province/Country: Poland
THE JOB CLUB Tel: 012 661 1099 Province/Country: Gauteng
CEMENT MEMBERS
TJEKA TRAINING MATTERS Tel: 011 665 2777 Province/Country: Gauteng YOUNG & SATHARIA CONSULTING CIVIL ENGINEERS Tel: 031 207 7252 Province/Country: KwaZulu-Natal
AFRISAM SOUTH AFRICA 011 670 5500 Province/Country: Gauteng LAFARGE INDUSTRIES SOUTH AFRICA (PTY) LTD 011 657 0000 Province/Country: Gauteng
NON-PRODUCER MEMBERS
PPC LTD Tel: 011 386 9000 Province/Country: Gauteng
ABEL EQUIPMENT Tel: 044 874 1876 Province/Country: Western Cape
SEPHAKU CEMENT Tel: 012 684 6300 Province/Country: Gauteng
ASH RESOURCES (PTY) LTD Tel: 011 657 0230 Province/Country: Gauteng
CONTRACTOR MEMBERS
BUFFALO RETAINING WALLS Tel: 016 366 1801 Province/Country: Gauteng CHRYSO SOUTHERN AFRICA (PTY) LTD Tel: 011 395 9700 Province/Country: Gauteng DELTA BLOC SOUTH AFRICA (PTY) LTD Tel: 011 024 4604 Province/Country: Gauteng DICK KING LAB SUPPLIES Tel: 011 499 9400 Province/Country: Gauteng DOUBELL BRICK MACHINES Tel: 041 585 9060 Province/Country: Eastern Cape HAWKEYEPEDERSHAAB Tel: 00 45 9645 4040 Province/Country: Denmark H BIRKENMAYER (PTY) LTD Tel: 011 970 3880 Province/Country: Gauteng HYDRAFORM INTERNATIONAL (PTY) LTD Tel: 011 913 1449 Province/Country: Gauteng
DECORTON RETAINING SYSTEMS Tel: 021 875 5155 Province/Country: Western Cape FRICTION RETAINING STRUCTURES (PTY) LTD Tel: 011 608 4321 Province/Country: Gauteng NDLONGHO CIVIL AND CONSTRUCTION (PTY) LTD Tel: 011 836 2577 Province/Country: Gauteng POWERGATE CONSTRUCTION Tel: 071 603 5070 Province/Country: Gauteng PYW PAVING Tel: 031 903 1736 Province/Country: KwaZulu-Natal VALCAL INTERNATIONAL EXPORT Tel: 011 867 2471 Province/Country: Gauteng
PI - Precast Infrastructure PB - Precast Building (...) - Number of branches
PRECAST | ISSUE THREE | 2015
Date: 23 April 2016 Venue: Summerplace, Illovo, Johannesburg Bookings: Contact Rita on tel: (011) 805 6742 to secure your table
Awa FOR THE PRECAST INDUSTY