African Design Magazine February 2016 - Page 71

Feature Concrete conserving aggregates through the use of excavated sand, recycled bricks and recycled concrete – Vernon Collis, Collis & Associates/Kyle Wickins, COMSIRU, UCT • Manufacturing quality green, environmentally friendly concrete products: a case study – Anthony Gracie, Cape Brick • Equipment for recycling: an overview – Shane Clark, Infinite Group • Recycling opportunities in the ready mixed concrete industry – Johan van Wyk, Southern Africa Readymix Association therewith According to John Sheath, Chief Executive Officer of the Concrete Society, when structures made of concrete are demolished or renovated, concrete recycling is an increasingly common method of utilizing the rubble. Concrete was once routinely trucked to landfills for disposal, but recycling has a number of benefits that have made it a more attractive option in this age of greater environmental awareness, more environmental laws, and the desire to keep construction costs down. “This is a must attend event for engineers, contractors, architects, suppliers and academics wishing to update themselves on this very topical and important subject”, Sheath says. “Recycled aggregates and sand have a wide variety of further uses on construction projects. The materials produced by constructi