C&D waste is often composed of a mix of materials that if separated can be reused. These include bricks and tiles, concrete, timber, cardboard, ceramic tiles, glass and other materials. Current recovery methods concentrate on keeping these materials separate at the source and the processing of homogenous materials such as concrete which is crushed to specific size gradients. Typical common current uses for recycled concrete are as a drainage medium and road base. The presence of steel reinforcing in some types of concrete in the recycled aggregate restricts its options for use.
New technologies for the use of recycled concrete include: