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CHRYSO supplied admixture to Temba Waterworks Project

CHRYSO supplied admixture to Temba Waterworks Project

Construction chemicals specialist CHRYSO Southern Africa supplied its CHRYSO CWA 10 integral waterproofing admixture at the Temba Waterworks Project, which is undertaken by Group Five Civil Engineering.

Deon Klopper, technical sales consultant CHRYSO Southern Africa, says that the contract award vindicated a lengthy testing process that ultimately resulted in “a few mixes and products” being approved. The most important in this regard was CHRYSO CWA 10, an admixture formulated specifically for water retaining structures. The total concrete work on the project was 17 000m3, of which 14 000m3 contained CHRYSO CWA 10 in the mix. Klopper explains that when CHRYSO CWA 10 is added to concrete, a chemical reaction with water results in the formation of long, narrow crystals that fill in the pores, capillaries, and hairline cracks of a concrete mass.

“The crystals effectively block the pores rendering the concrete dense and waterproof, as well as maintenance free and durable,” Klopper says. CHRYSO CWA 10 is used mainly in concrete subjected to hydrostatic conditions.

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