主要的凝硬反應有2,4:
Ca(OH)2 + SiO2 + H2O → (CaO)x(SiO2)y(H2O)z
calcium silicate hydrates 水合矽酸鈣
Ca(OH)2 + Al2O3 + H2O → (CaO)x(Al2O3)y(H2O)z
calcium aluminate hydrates 水合鋁酸鈣
Ca(OH)2 + Al2O3 + SiO2 +H2O → (CaO)x(Al2O3)y(SiO2)z(H2O)w
calcium aluminate silicate hydrates 水合矽鋁酸鈣
Ca(OH)2 + Al2O3 + SO3 +H2O → (CaO)x(Al2O3)y(CaSO3)z(H2O)w
calcium aluminate calcium sulfate hydrates 水合亞硫酸鈣鋁酸鈣