SA Affordable Housing November - December 2019 // ISSUE: 79 | Page 41
PRODUCTS
Armorflex specified for
attenuation pond
dump water and any other excess water components at site.
The product was supplied in palletized loose block form
for manual installation, which upon completion formed the
Armorflex mat formation.
“The beauty of the Armorflex system, is that it is flexible
and sophisticated in design, conforms to ground contours
(even if settlement occurs after installation and the blocks
have a specially tapered design to allow for this flexibility),
settles without fracture, and requires only limited ground
preparation,” Van der Berg concluded.
Technicrete manufactures the Internationally Licensed
Armorflex system in South Africa. It is the only system available
locally with the facility to wire tie adjacent blocks together into
long mats. The interlocking design allows the surface to remain
flexible to movement, eliminating the cracking and spalling
issues that plaque solid concrete surfaces, even when exposed
to regular inclement weather. The openings in each block and
between blocks are perfectly sized to benefit from enough
vegetation growth to make the surface appear ‘natural’ whilst
still maintaining structural integrity.
Technicrete and Rocla are part of the Infrastructure
Specialist Group of companies (ISG).
Armorflex 165, Technicrete’s erosion control system that
provides an alternative for a wide variety of erosion control
and drainage projects, was specified for the recently
completed Attenuation Pond for EnviroServ at their Rosslyn
premises.
Armorflex blocks offer an excellent lining for drainage
channels. At aprons at pipe inlets and outlets, Armorflex
eliminates pipe undercutting that can lead to severe
problems such as surrounding bank failure and siltation
downstream.
The Rosslyn project ran from February to June 2019 and
was undertaken by MK Africa Civils. “We have worked with
MK Africa Civils on other projects, and we understand that at
times, all does not run smoothly on-site. Upon excavation of
the pond’s designated area, unexpected rock was discovered
which had to be removed with chemical blasting before the
required pond level could be reached. We halted deliveries
of the Armorflex 165 loose blocks to site until the blasting
issue had been resolved,” said Luan van der Berg, Sales
Consultant for Technicrete.
“We supplied 7 000m 2 of Armorflex 165 blocks for the
attenuation pond which will serve as a storage for run-off
Armorflex is suited to other drainage applications such as ditch linings, spillways, headwalls, sediment basins and traps, pipe inlet
protection, and protection of barriers.
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