In a long time, scientific input in our country has been insufficient which made corresponding
technical standards couldn’t be set up. For example, the structure, intensity, and other indexes which
is responsible of resource utilization of urban construction waste, and method, and safety parameters
of substitution and so on. Because there is some difference between construction waste and raw
material, how to use properly and effectively is the first problem. Study of this aspect is the
fundamental guarantee of the proper, wide use of construction waste.