Refractory cement and refractory mortar are two different building materials that differ in composition, use, and performance. The following are their main differences:
| Refractory cement | Refractory mortar | |
| Element | Refractory cement is a special type of cement, the main component of which is calcium aluminate, and usually contains a certain proportion of alumina. It is made by calcining raw materials such as bauxite and limestone at high temperatures. After adding water or other liquid binders, refractory cement can form a gelling material with high temperature resistance. | Refractory mortar is a mixture of refractory cement, refractory aggregates (such as refractory sand, refractory powder, etc.) and some additives. The refractory aggregates in refractory mortar are usually materials that have been treated with high temperatures, such as high-alumina bauxite, silica sand, etc. These aggregates give the mortar good high temperature resistance and mechanical strength. |
| use | Refractory cement is usually used as a cementitious material for refractory concrete or refractory mortar. It can be mixed with other refractory aggregates to make various refractory structures, such as the lining of industrial furnaces, chimneys, flues, etc. | Refractory mortar is mainly used for laying refractory bricks or other refractory products. It can be used as a caulking material to ensure the tightness and fire resistance of the masonry. In addition, refractory mortar can also be used to repair and maintain existing refractory structures. |
| performance | Refractory cement itself is a cementitious material with high temperature resistance and early strength. Its main function is to maintain the stability and integrity of the structure under high temperature environment. | Refractory mortar not only has the high temperature resistance of refractory cement, but also has higher mechanical strength, wear resistance and erosion resistance due to the addition of refractory aggregates and additives. Refractory mortar can form a dense structure at high temperatures, effectively preventing the penetration and erosion of high temperature gases or liquids. |
| Construction method | Refractory cement usually needs to be mixed with other aggregates before use. During construction, water or other binders need to be added in a specific proportion, and then poured or applied after mixing evenly. | Refractory mortar can be used directly, usually just add an appropriate amount of water and stir evenly. The construction method is relatively simple, and can be done by masonry, coating or spraying. |