Permeable concrete is a new type of pavement material, featuring air permeability, water permeability and light weight. It is made by mixing aggregates, cement and water in a certain proportion. It does not contain fine aggregates. The surface of coarse aggregates is coated with a thin layer of cement slurry and bonded together to form a honeycomb structure. Compared with ordinary concrete, permeable concrete has greater strength and can withstand higher vehicle pressure and wear.