Precast solutions for a residential estate

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Technicrete’s DZZ 60 mm slatecoloured interlocking pavers provide a durable and aesthetic finish at the Eye of Africa development

Rocla also supplied 142 manhole units measuring 1 000 mm in diameter

The infrastructure network for the Eye of Africa Golf and Residential Estate development south of Johannesburg is now well advanced, with Down to Earth Civils moving on to Phase II from mid-2022.

Down To Earth Civils selected Technicrete and Rocla for the supply of paving, manholes and stormwater pipes for Phase I of the project. This included the 25 000 m2 of main roadways throughout the estate that been paved with Technicrete’s DZZ 60 mm interlocking pavers. Technicrete will be supplying a further 18 900 m2 of DZZ 60 mm pavers for Phase II.

Stormwater

To meet the estate’s stormwater requirements, Rocla supplied 675 m of interlocking joint (IJ) pipes. The IJ pipes are specifically designed and manufactured for stormwater applications. The male/female type joint is formed inside the wall of the pipe. The joint itself is used for centering the pipe during laying operations, thus making the process easier.

“Although the IJ pipe is primarily designed for use in a non-watertight pipeline, rubber collars can be supplied to facilitate a measure of water-tightness. These can be used where the ingress of groundwater needs to be avoided, and the more expensive rubber ring joint pipe is not necessary,” explains Grant Fourie, sales consultant at Technicrete Olifantsfontein. (Technicrete and Rocla form part of the Infrastructure Specialist Group of companies).

“The pipes are manufactured in 2.44 m and 1.22 m sections, but can be manufactured in special lengths to meet specified customer requirements. The standard strength classes for these pipes are 50D, 75D and 100D (refer to SABS 677),” he adds.

“Special intermediate strengths or heavier loading requirements can be designed and manufactured. These are subject to various material constraints but will be evaluated by our engineers on an ad hoc basis,” Fourie concludes.