Clay bricks are made of clay (including shale, coal gangue and other powders), processed by mud, shaped, dried and calcined. The size of ordinary brick is 240 mm × 115 mm × 53 mm. According to the compressive strength (Newton / square mm, N / mm2), it is divided into 6 strength levels: MU30, MU25, MU20, MU15, MU10, MU7.5. . Clay bricks are made in situ, cheap, durable, and have the advantages of fire prevention, heat insulation, sound insulation, moisture absorption, etc., and are widely used in civil engineering construction. Waste bricks can also be used as aggregates for concrete. In order to improve the shortcomings of ordinary clay bricks, self-important, and more soil consumption, it is developing in the direction of light weight, high strength, hollow and large blocks.

Clay brick