Why can earth make bricks?
Brick is a common masonry material. Brick and tile production and use in China has a long history, "Qin Zhuanhan tile". The raw material for brick making is easy to obtain, the production process is simple, the price is low, the volume of urine is in the combination, and the clay brick also has the advantages of fire protection, heat insulation, sound insulation, moisture absorption, etc..
In addition to clay, or as raw materials for preparation of brick by using fly ash, coal gangue and shale, which is due to their chemical composition similar to clay, but because of the fineness of less clay, so the poor plastic bricks often to be mixed with a certain amount of clay, in order to increase the plasticity. The use of coal gangue and fly ash and other industrial waste residue brick, not only can reduce the environmental pollution, saving large areas of farmland clay, and can save a lot of fuel coal. Obviously, this is an effective way to use the waste materials and make waste into treasure. In recent years, non sintered brick has been developed both at home and abroad. Such as non sintered clay brick is used is not suitable for farming, waste mud and sand soil, adding a small amount of cement or lime as solidifying agent and trace additives and the amount of water mixing, molding, natural curing or steam curing time is.
Therefore, it is still widely used in masonry projects such as walls, foundations and columns. However, due to the production of traditional clay brick to destroy the field, large amount of soil sampling, high energy consumption, brick from the major, high labor intensity and low efficiency in construction, it is necessary to gradually reform and replace with new materials. Some cities have banned the use of clay bricks in buildings. Brick for sintering brick and non sintered brick in accordance with the production process; according to the raw materials used for clay brick, shale, coal gangue brick, fly ash brick, slag brick and lime sand brick; according to whether the hole is divided into hollow brick, brick. In addition to clay, or as raw materials for preparation of brick by using fly ash, coal gangue and shale, which is due to their chemical composition similar to clay, but because of the fineness of less clay, so the poor plastic bricks often to be mixed with a certain amount of clay, in order to increase the plasticity. The use of coal gangue and fly ash and other industrial waste residue brick, not only can reduce the environmental pollution, saving large areas of farmland clay, and can save a lot of fuel coal.
