High Aluminum and High Strength Castable

High alumina and high strength Refractory Castables produced by our company are widely used in various positions of preheaters and cooler, and its service behavior has won affirmation of the majority of the users.

High-aluminum high-strength castable is a kind of low-cement castable with a cement content of less than 8%. It is a dense high-strength refractory castable made of special high-aluminum raw materials. High-aluminum high-strength castable is made of relatively pure aluminate or pure calcium aluminate cement as a binder, mixed with corundum, mullite, special-grade bauxite clinker and alumina powder or admixtures in proportion, and then mixed with water, formed and cured. The use temperature of high-aluminum high-strength castable is above 1400 degrees, and the aluminum content reaches more than 70%. It is a commonly used castable for kiln lining, with high refractoriness, strong thermal stability, good thermal shock resistance and other thermal properties. The difference between high-aluminum high-strength castable and ordinary refractory castable is that most of the calcium aluminate cement in the matrix is ​​replaced by ultrafine powder, and at the same time, an appropriate amount of additives are added to achieve and exceed the performance of ordinary cement castable.