2021 Volume 75 Issue 1 Pages 97-104
Aiming at the practical productivity and strength of sulfated slag cement, we examined various inorganic chemicals as activator that enhances the strength, and researched on the effect of combination of specific activators. Disodium hydrogenphosphate, magnesium chloride, magnesium carbonate, magnesium sulfate, calcium chloride and calcium nitrite improved the compressive strength of sulfated slag cement. Furthermore, a remarkable synergistic effect on the strength was obtained by the combination of activators with different activating age. Sulfated slag cement activated by the combination of calcium chloride or calcium nitrite and disodium hydrogenphosphate showed almost the same compressive strength with ordinary Portland cement at the age of 28days.
