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CONSTRUCTION WORLD
SEPTEMBER
2015
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PRODUCTS AND SERVICES
Realising the restrictive work environment on this project,
Delf Consulting Engineers had no hesitation in specifying
Sika’s Sikadur-Combiflex SG system. With its international
approval for drinking water suitability, the Sikadur-Combiflex SG
system was used to seal all construction and expansion joints
within the water retaining structures, including all water tanks
and clarifiers.
Sikadur-Combiflex SG is a high performance joint sealing system
consisting of amodified, flexible Polyolefin (FPO) waterproofing tape
and Sikadur-31 CF Normal, an advanced thixotropic, moisture-tol-
erant, structural two-part adhesive based on a combination of epoxy
resins and special fillers. When fixed to a joint, the Sikadur-Combiflex
SG system allows for irregular and high movement in more than
one direction whilst still maintaining a high quality seal.
Working under extremely difficult conditions that included
confined spaces and rigid safety requirements; contractor Liviero
Civils installed 2 000 metres of the Sikadur-Combiflex SG system.
Since it is extremely flexible, easy to install, and provides excellent
adhesion on either dry or damp concrete surfaces, it was the ideal
product for this challenging situation.
For highly effective chemical protection of the pump stations,
chemical dosing areas and clarifier launders at the plant, Sika’s
Sikagard-63 N (2 000m
2
) was specified. This 100% solids, two-part
epoxy resin coating, designed for normal to aggressive chemical
environments, is simple to apply, liquid-proof and solvent-free.
Since the application of these Sika products was a high priority
project that could not afford any delays, a restrictive time schedule
was imposed. Unfortunately, severe weather conditions prevailed
which caused major delays.
With increased emphasis on protection of the environment,
Aveng Water, who constructed this plant, is playing an important
role in combating the problem of acid mine drainage (AMD), while
the use of Sika’s products ensures the durability of the plant and
thereby the provision of millions of litres of potable water.
Johannesburg-based Fedglass successfully completed its scope
of the project by drilling 12 000 holes, each 22 mm in size, using
equipment supplied by Diamond Products – a leading specialist in
the manufacture, assembly and sale of diamond tools and equipment for
industrial applications.
Fedglass managing member Jürgen Ewert notes that the company
did not encounter any major challenges, thanks to the quality of the 120
Diamond Products RC35 core barrels and three Shibuya 1011 core drills
being used throughout the duration of the project.
“The team of 15 Fedglass experts were able to successfully drill all the
holes problem-free, thanks to the reliability of the equipment. The Shibuya
core drills were highly-impressive, and proved to have an extended oper-
ational lifespan, compared to similar products in the market,” he states.
The Shibuya range of core drilling machines are distributed exclusively
in Southern Africa by Diamond Products. Director Brian Clark points out
that the Shibuya core drill is lightweight and easy to handle. “It is also high-
ly-durable, making it ideally-suited to numerous applications.”
Shibuya core drills also come standard with a water collection ring to
contain any water that may be spilled while drilling. This excess water can
be collected by a vacuum cleaner. Another user-friendly aspect of the drill is
that there are no gears, and the user simply has to turn the drill on and off.
Clark adds that the RC35 core barrels are used in drilling to make clean
holes quickly and precisely in concrete, masonry, asphalt and stone. “They
are highly cost-efficient, and require little clean-up or patching compared to
other methods of making openings in floors, walls, ceilings or pavements.”
Given the success of this project, Ewert is confident of the future outlook
for Fedglass. “Our high-quality work and competitive pricing have enabled
us to grow from strength-to-strength across Southern Africa. With reliable,
value-adding partners such as Diamond Products, I believe we can increase
market share, particularly in frameless glass applications,” he concludes.
MINE WATER
RECLAMATION
Sika recently supplied its world renowned
products to seal and protect a huge, newly
constructed Mine Water Reclamation Plant
(MWRP) in Middleburg, Mpumalanga.
Although not the first such plant in this coal
mining area, it is the largest of its kind and
will purify millions of litres of toxic mine
water that will be safely returned to local
municipal waterways.
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GETTING TO THE CORE
Glass and stainless steel products specialist
Fedglass has successfully installed 2 500 m of
balustrading and 200 privacy screens at a high
rise building in Mozambique, which consists of
commercial offices and residential apartments.
RC35 bits.
The Shibuya range of core drilling machines are distributed exclusively in
Southern Africa by Diamond Products.
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