In cement theoretical, the strength development of the clinker compounds are mainly based on 2 compounds; Tricalcium silicate (Ca3SiO5, C3S) and Dicalcium silicate (Ca2SiO4, C2S). The most existing C3S in clinker is 45-55 %, is which occurs at high temperature (1,450 °C ). , and produces of CO2 more than C2S. As a result, people interested in education to synthesis C2S. Which is available in 35-15 % of clinker and it occur at temperatures below C3S.