2022 Volume 76 Issue 1 Pages 162-170
In this study, we evaluated the hydration process and products of cementitious materials made of some clays and alite when kneaded with different concentrations of sodium hydroxide solution in a high-temperature environment. As a result, the formation of C-A-S-H with short silicate anion chains system, 1.1nm Tobermorite that does not have Q3 bonds and N-A-S-H was confirmed in the system using montmorillonite. On the other hand, in the system with kaolinite, C-A-S-H with long silicate anion chains system, 1.1nm Tobermorite that does not have Q3 bonds, and Hydrosodalite were formed. It was inferred that Al at the bridging site in C-A-S-H contributed to the formation of Hydrosodalite as the age of the material increased.
