Introduction：
Low cement castable is a type of refractory monolithic that has a lower amount of calcium aluminate cement (CAC) as a binder compared to conventional castables. It typically contains less than 8% CAC by weight, whereas conventional castables can have higher CAC content ranging from 10% to 20%.
Low cement castables exhibit improved resistance to thermal shock and spalling at high temperatures. The lower amount of cement reduces the overall porosity and permeability of the material, resulting in improved strength and stability when exposed to rapid temperature changes.
Low cement castables have good flowability and workability, making them easier to handle and install. They can be poured, gunned, or troweled into place, providing flexibility in shaping and forming complex geometries.
Low cement castables are commonly used in various high-temperature applications, including steelmaking, cement kilns, boilers, incinerators, and petrochemical processes. They offer improved performance, durability, and thermal efficiency compared to conventional castables, especially in environments with severe thermal cycling, chemical exposure, or mechanical stress.
