One is the resistance to freezing and thawing. The water absorption rate reaches 10%, cizhizhuan at -15 DEG C to three times of freeze thawing has been cracking, and clay brick can at -45 DEG C under the environment of freezing and thawing 50 times without cracking. Two is the anti light pollution performance. Ceramic tiles can be refracted all over 90% of the light, and it has a good effect on protecting human vision and reducing light pollution. The three is the sound absorption. Because the clay brick is rich in a large number of open pores with uniform and fine honey, it can absorb all or part of the sound waves, and it can be taken out to reduce noise and eliminate the echo effect indoors. The four is air permeability. The superiority of air permeability and permeability of clay brick is fully demonstrated in today's green civilization. Its ancient flavor and natural landscape are integrated, reflecting the harmonious dialogue between man and nature.