... based upon calcium aluminate;used to projects with special requirements. It is a kind of aluminate cement wrought material based upon ... the cement has a grinded Al2O3 content of above 68%, it can be added with appropriate amount of α-Al2O3 powder as ... 2 Setting timeItemInitial setting time is not earlier than,minFinal setting time is not later than,hCA-50,CA-70,CA-80306CA-606018 ...