Thermal refractory castable - refractory castable = castable price

Castable is a kind of granular and powdery material made of refractory material, which is composed of a certain amount of binder and water.It has high fluidity, suitable for construction by casting method, and does not need heating to harden the amorphous refractories.It is composed of refractory aggregate, powder, binder, admixture, water or other liquid materials.Generally in the use of the field by pouring, vibration or tamping method of casting and forming, can also be made into prefabricated parts for use.

Refractory castable is the main variety of amorphous refractories. During the second world war, the United States used refractory castable as an alternative to shaped bricks for boilers or oil production equipment. Japan began to study and produce such materials in 1950.In the early 1950s, the Soviet union began to use Portland cement refractory castable.Since the 1960s, the amorphous refractories have developed rapidly. In the 1990s, the output of amorphous refractories in Japan, the United States, Germany and other countries has accounted for more than one third of the total output of refractories, and refractory castable accounted for 40% ~ 50% of the amorphous refractories.China in the early 1950s began to use Portland cement refractory castable, then known as heat resistant concrete, mainly used for.(sometimes under 700 ℃ of 700 ~ 1200 ℃) of the thermal structure, widely used from 1965 to 1975 in calcium aluminate cement and phosphate refractory castable, then called refractory concrete, using temperature up to 1400 ~ 1600 ℃, during which the construction of the product production base, established product standard at the beginning of 1976, 1976 years later, products is increasing rapidly, the quality has also improved, in the mid 80 s China has developed a new generation of refractory castable, including low cement, ultra-low cement and without cement refractory castable, its quality is close to the international advanced level.