One of the area within Construction and Demolition waste management is crushing the materials (mainly concrete debris) and sieving. The fine dust and the semi fine dust is used to make pavement blocks and other materials which are used for construction. These are also used as partial replacement of cement. There are companies also who produce such items but the demand for such items are low as their price is comparatively higher than sourcing new materials. Also, proper design and design tools can we really reduce the waste generation.