in accordance with Different types of permeable bricks have different information on their surface layers. The details are as follows: 1. General permeable brick : the surface layer data is the porous concrete data of general crushed stone. 2. Polymer fiber concrete permeable brick : The surface layer is made of granite aggregate, high-strength cement and cement polymer reinforcement. 3. Color stone composite concrete permeable brick : The surface layer is made of natural colored granite, marble and modified epoxy resin, and then it is combined with the polymer fiber porous concrete at the bottom to form a restricted composite. The permeable brick is a new century environmental protection building material product that was born in order to deal with the hardening of the urban surface, create a high-quality natural living environment, and protect the urban ecological balance. It has the characteristics of insisting on water permeability, moisture retention, anti-slip, high strength, cold resistance, weather resistance, noise reduction, sound absorption and so on.