High alumina cement is also called aluminate cement, commonly known as bauxite cement. The raw materials are bauxite and lime, which is a hydraulic cementitious material obtained by calcining and grinding after being prepared in a certain proportion. It can be used as a binder in refractory castables. .

1. High alumina cement has a large heat of hydration. It cannot be used in large-area concrete projects and wet and high-temperature projects. It is most suitable for use in an environment of 5-35 degrees. Adding a certain proportion of high-temperature refractory cement to the castable can make the castable set quickly and densely during construction. .

2. High alumina refractory cement has strong resistance to sulfate corrosion. The cement stone structure of high alumina cement is dense, the main component is low calcium aluminate, and the content of calcium oxide is very small.

3. High alumina refractory cement has good heat resistance. In a high temperature environment, the solid state will always be maintained, and the strength of the cement will remain unchanged.

4. High alumina cement has weak alkali resistance. High-alumina cement will cause erosion when it comes into contact with alkaline solution, and it will also cause erosion when a small amount of alkaline compounds are contained in the concrete aggregate. Therefore, high alumina cement cannot be used in projects that come into contact with alkaline solution.