China Supplier Lightweight Refractory Castable High Alumina Refractory Monolithic Castable

China Supplier Lightweight Refractory Castable High Alumina Refractory Monolithic Castable

castable refractory cement product introduction
castable refractory cement are refractory castables produced by using high-alumina raw materials as aggregates and powders and adding binders. castable refractory cement have high mechanical strength and good thermal shock resistance and abrasion resistance. They are mainly used as linings for boilers, blast furnace hot blast stoves, heating furnaces, ceramic kilns and other kilns.

For castable refractory cement, readers who often follow the news of Yuan Refractory's official website are probably not unfamiliar. The technical staff of our company summarized the advantages of castable refractory cement, as follows:

(1) The amount of cement is low, and the calcium content in the castable is only 1/4-1/3 of the traditional refractory castable. Therefore, the number of low-melting phases in low-cement castables is reduced, so that the high-temperature performance is significantly improved;

(2) The water consumption for construction is low, generally 6-7% of the weight of the castable, so it has high density and low porosity;

(3) It not only has high normal temperature curing strength, but also does not decrease the strength after medium temperature and high temperature treatment, and the strength value is 3-5 times that of traditional refractory castables;

(4) It has good volume stability at high temperature. Although it is an unfired refractory material, its volume shrinkage is small after drying and calcination.

Feature of castable refractory cement:

1. Low cement content in the castable, that is, low calcium oxide content, reduces the generation of low-melting substances in the material, thereby improving the refractoriness, high-temperature strength and slag resistance of the product.

2. The mixing water consumption of the castable is only about half of that of the ordinary castable, so the compactness of the castable is improved and the porosity is reduced.

3. After molding and curing, the generated cement hydrate is less. During heating and baking, there is no leakage of a large amount of water, which reduces the medium temperature strength, and as the temperature rises, the material gradually sinters and the strength continues to increase.

Technical Data of castable refractory cement: