The state encourages the use of innocuous and harmless solid wastes to produce building materials, the use of bulk cement and the use of ready-mixed concrete and ready-mixed mortar.

• 国家鼓励利用无毒无害的固体废物生产建筑材料，鼓励使用散装水泥，推广使用预拌混凝土和预拌砂浆。