Difference Between Refractory Castable And Refractory Cement

There are significant differences between refractory cement and refractory mortar in terms of material composition, hardening method, service temperature and application fields. ‌

Material composition and hardening method
Refractory cement is mainly composed of aluminates, silicates and other minerals. It is gradually hardened at room temperature after mixing with water. Refractory clay is mainly composed of refractory aggregates, powders and binders. After mixing and stirring, it can achieve high strength at room temperature‌1.

Operating temperature range
Refractory cement has high fire resistance and can withstand high temperatures above 1500°C, making it suitable for structural materials in high temperature environments. The service temperature range of refractory clay is relatively wide, and the formula can be adjusted according to specific needs to meet the fire-resistant requirements of different temperature ranges‌1.

Application areas
Refractory cement is mainly used for the construction and repair of high-temperature kilns, furnaces, flues and other structural materials. It can also be used to make refractory bricks, refractory boards and other products. Refractory clay is widely used for caulking, repairing and sealing of various high-temperature equipment, such as sealing of furnace doors, flues, pipes and other parts‌1.

Performance characteristics
Refractory cement has high compressive strength and wear resistance, excellent anti-penetration performance, and can maintain stable structural performance in high temperature environments. Refractory cement has good fluidity and adhesion, and can fill small cracks and achieve good sealing effect‌1.

In short, although refractory cement and refractory mortar are both refractory materials, there are obvious differences in material composition, hardening method, use temperature and application fields. In practical applications, appropriate refractory materials should be selected according to specific needs to ensure the normal operation and service life of high-temperature equipment‌.