GRC & the Environment


The main constituents of GRC are based on the naturally occurring earth oxides that are used in the manufacture of cement and glass fibres. These are not generally regarded as pollutants. Wash water from the manufacturing process contains cement and this is alkaline. It is normal for factories to have settlement tanks so that solids are not put into the drainage system.

The reduced weight of GRC compared to steel reinforced concrete products does provide environmental benefits. An assessment carried out as part of a DETR/ Concrete Industry Alliance PIT Project compared two concrete and GRC products that fulfil the same function. The results show that GRC has a lower environmental impact. The summary results are shown in the graphs on this page The main reasons are an overall reduced cement usage per product and reduced transport costs.

GRC on Kawasaki Island
GRC on Dusseldorf Noise barrier