Shandong Red Clay Brick

Wall bricks by the production process were divided into conglomerates and non-fired brick. Brick in China has more than two thousand years of history, it is still a very wide range of wall materials. Many different types of brick, according to the raw materials into clay, shale brick, coal gangue brick, fly ash bricks, sand-lime brick and slag brick; according to the production process can be divided sintered and non-sintered brick brick, wherein the non-sintered Bricks can be divided into pressed tiles, bricks and autoclaved steam-cured bricks; holes can be divided according to whether the ordinary brick, brick, hollow brick. Brick: Where clay, shale, coal or fly ash as raw material, molding and calcination prepared for masonry load-bearing and non-load-bearing walls of brick collectively referred to as Brick. According to different raw materials into sintering clay, fired fly ash brick, sintering shale brick. Bricks of solid or porosity of less than 25% of fired brick, called sintered common brick. Production and use of common clay brick, in China has 3,000 years of history. Today, the wall materials used in the construction, ordinary brick still dominant. Although there are many less common clay brick, but due to low prices, simple process, design and construction technology is mature, and the people using the inertia and other reasons, ordinary brick in the future for a long time, especially in rural areas, is still the main wall One body of material. The main raw material for ordinary silty clay or sandy clay, the main chemical composition of SiO2, Al2O3 and Fe2O3 and crystalline water, generated due to the different geological conditions, may also contain small amounts of alkali and alkaline earth metal oxides. Clay brick manufacturing process include soil, mud refining, briquetting, drying and roasting. In addition to clay, but also the use of shale, coal gangue, fly ash and other raw materials to produce sintered bricks, because their chemical composition is similar to clay. But due to their inferior plasticity clay, so often when you need to add a certain amount of clay bricks in order to meet the needs of the plasticity of the system blank. In addition, coal gangue and fly ash brick in the case of combustible industrial waste, containing unburned carbon, with the brick firing also burning body, thus saving a lot of firing coal with foreign investment. Such tiles also known as brick or semi-diesel internal combustion brick. The content of impurities in raw materials and other products calcination temperature and color of clay bricks also have a greater impact.