Just so we are clear about this particular waste let me explain directly from the European Topic Centre on Sustainable Consumption and Production: CND waste includes soils, concrete, bricks, glass, wood, plasterboard, asbestos, metals and plastic.

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She said commercial waste had increased significantly, including bags of rubble and concrete, but that bags of personal household rubbish were also a common sight.

BBC: Imerys land

The concrete is often made with foam, fly-ash or other waste materials to make it lighter as well as cheaper.

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