An ettringite cement based on a C-A-S glass and gypsum

Inorganic binders conslstmg of a CaO—Al₂O₃—SiO₂ glass and gypsum were prepared. Such cements set and harden producing ettringite as the main product of hydration. This proc;ess is not associated with an expansion of the paste. A simultaneous addition of calcium hydroxide adversely affects the strength obtained.