n IMIESA - Pipes in the spotlight : materials




Extracted from text ... IMIESA JANUARY 2006 - 47 MATERIALS Pipes in the spotlight In an independent and scientifically-based survey that examined total labour content on three stormwater and sewerage piping materials, concrete, high density polyethylene (HDPE) and glass fibre reinforced plastic (GRP), concrete piping was found to generate significantly more employment. The survey was commissioned by the Concrete Manufacturers Association (CMA) and conducted by LHA Management Consultants in the diameter classes of 300 millimetres, 600 mm and 1 200 mm respectively. Concrete piping was found to be up to six times more labour intensive when the labour content on 100 metres of pipe ..


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