Castable castable density formula _ _ _ Which castable insulation castable - Longtime refractory Products: castable is granular and powdered material made of a refractory material, and adding a certain amount of binder and water together components. It has a high mobility, suitable for construction by casting methods, and without heating can be hardened monolithic refractories. A refractory aggregate, powder, binder, additives, water, or other liquid material. Usually in the field to use pouring, shaking or tamping method of pouring molding, a preform may also be made use of. A brief history of refractory castable is the main varieties of monolithic refractories, during World War II in the United States as a shaped brick refractory castable substitute boiler or oil production equipment used in Japan began to study the production of such materials in 1950. The early 1950s, the Soviet Union began to use Portland cement refractory castable. Since the 1960s, the rapid development of monolithic refractories, date to the 1990s, production of monolithic refractories United States, Germany and other countries accounted for more than 1/3 of the total output of refractories, which accounted for unshaped refractory castable 40 % ~ 50%. China in the early 1950s began to use Portland cement refractory castable, then known as heat-resistant concrete, mainly for the following 700 ℃ (sometimes 700 ~ 1200 ℃) thermal structures, commonly used from 1965 to 1975 aluminate Calcium phosphate cement and refractory castable, then known as refractory concrete, the use of temperature to 1400 ~ 1600 ℃, during the construction of the production base, product standards established early in 1976, after 1976, the rapid increase in product variety, quality gradually increase the mid-1980s China has developed a new generation of refractory castable, including low cement, ultra-low cement and non-cement refractory castable, its quality is close to the international advanced level. Longtime Zouping Refractories Co. (www.zpltnhcl.com) is a construction, building materials company, is approved by the relevant state registration of enterprises. Main refractories, refractory bricks, the company is located in the town pond China Zouping County resident. Longtime Refractories Co. Zouping spirit of "customer first, honesty first" principle, with the number of enterprises established long-term cooperative relationship. Warmly welcome friends to visit, study, business negotiations.