What are the specifications of bricks?
Clay bricks are made of local materials, cheap and durable, with the advantages of fire prevention, heat insulation, sound insulation and moisture absorption, and are widely used in civil engineering. Waste bricks can also be used as aggregate of concrete. In order to improve the shortcomings of ordinary clay brick, such as small volume, heavy weight and large soil consumption, it is developing in the direction of light weight, high strength, hollow and large block.
Lime-sand brick is made by grinding lime, quartz sand, sand or fine sandstone in a proper proportion, adding water, mixing, semi-dry pressing and autoclaving. Fly ash brick is made of fly ash as the main raw material, mixed with cementing materials such as coal gangue powder or clay, through proportioning, molding, drying and roasting, which can make full use of industrial waste residue and save fuel.