CA-70 refractory cement is a type of alumina refractory cement with about 70% alumina, equivalent to SECAR 71 cement, which is produced during the sintering-melting process of calcium aluminate compounds. Among the features of this product, he pointed out that it is fast and strong at the same time. The most important refractory cement is 70% in the production of castable refractory masses with qualities of 50% alumina to 95% alumina. CA-70 cement is pure cement compared to CA-80 cement. It has a high ability to add special lubricants and super lubricants. For this reason, it is generally used in self-flow, low-cement (LCC) and ultra-low-cement (ULCC) castable aggregates and tile aggregates.