Effects of components on the rate of heat liberation of the hydration in the system of glass/gypsum/lime

The rates of constant heat liberation depend on the composition of glass especially the contents of CaO and Al2O3. The period of this process was controlled by the amount of lime addition. During this stage, the solid Ca(OH)2 was completely consumed. In this sulfate-excess system, the reaction equation, during Ca(OH)2 consumption, should be written as; glass + gypsum + lime ⇒ C-S-H with a C/S ratio of 1.42 and Ettringite.