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PRODUCTS AND SERVICES
spill on site where it can be contained either below ground (i.e. addi-
tional underground storage tanks), in an above ground, bund-wall area,
or ideally both.
Filter cartridge life expectancy is between 3 – 5 years depending
on the environment and usage that the filter is subject to although it
is recommended to have a spare filter cartridge that can be inserted
during routing cleaning of the current filter.
Applied in such diverse industries from bus and coach wash bays to
mining operations, all of the basic elements of the ecoSep, ecoLine and
ecoStop systems can be accessed from ground level, minimising confined
entry access when conducting routine cleaning and maintenance.
Permeable paving technology
Industrial and residential establishments that have landscaped and
paved walkways and driveways often have enormous water runoff due
to insufficient storm water drainage systems. Recycled non potable
water required for activities such as sanitation and landscaping can
easily be captured via the Aqua permeable paving technology from
Technicrete, which not only attenuates storm-water effectively, but also
enables water ‘harvesting’ to be conducted easily and efficiently.
The Technicrete Aqua Sustainable Underground Drainage System
(SUDS) allows rainfall to infiltrate through a concrete block with
widened joints, into a sub-base, which then control releases the water
either via attenuation into sewers or water supplies or infiltration
into the soil below the paved area, eliminating excessive pressure on
existing storm water systems.
SUDS are particularly effective in the prevention of flooding and
water run-off in areas such as car parks, industrial estates, domestic
drives and airport service areas where the area of paved area is typi-
cally very large.
Heavy metals, hydrocarbons, rubber, dust, silts and other debris
are generally deposited on impermeable surfaces during dry weather,
which are removed into treatment works, rivers or streams during
rainfalls causing severe environmental damage. SUDS systems have
been shown to treat and remove small quantities of hydrocarbons and
heavy metals and therefore offer two unique solutions – superior water
attenuation and infiltration and environmental protection. Analysis of
water exiting from a typical Permeable Paving system has been found
to be as clean as water from a traditional modern sewage works and
with a pH of approximately 7,5.
Francois Venter, managing director of SurePave commented,
“We have used the Technicrete permeable technology at a project in
Mt Edgecombe where the main advantage for the client was that the
storm water flow was delayed (attenuated) so they did not need to
build an attenuation dam for this property. The final appearance is
good, and the drainage technology is sound, so the slightly extra cost
for the system is outweighed by the savings achieved through water
efficiencies. We anticipate a greater demand for permeable paving on
projects we will be involved with in the future”.
Environmentally friendly clay stock bricks
Oconbrick clay stock bricks are environmentally friendly due to their
manufacturing process which is from natural soil as opposed to chemi-
cally compressed materials. They offer high performance and longevity
characteristics giving a greater durability and strength. Ocon Brick clay
stock bricks are a low carbon footprint brick having excellent acoustics
with low water absorption and are naturally fire resistant.
The carbon content of the Ocon Brick’s clay stock bricks gets tested
on an hourly basis with a carbon determinator. Random selections of
clay stock bricks are sent to an external laboratory for SANS 227 compli-
ance testing on a monthly basis.
Ocon Brick supplied five million clay stock bricks to the five star
Green Rated Standard Bank building in Rosebank and has supplied
bricks to two other five star, Green Star rated buildings, namely ABSA
Towers West, Johannesburg and Nedbank Menlyn Maine Falcon
Building also in Johannesburg.
Rocla offers the ecoRain rainwater harvesting tanks, which are used for water
catchment and recycling or attenuation, offering long lasting water storage systems.
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CONSTRUCTION WORLD
NOVEMBER
2015