Hydration of ternary blended cement paste

In this paper, hydration of ternary and binary blended cements containing Portland cement, ground granulated blast-furnace slag and limestone powder has been investigated. The results show that the hydration of calcium silicate phases of cement in pastes was enhanced by the presence of limestone, but hampered by slag. The hydration of calcium alumina phases of cement was greatly accelerated by the addition of slag, and also enhanced by the presence of limestone powder in binary blended limestone cement paste at early age. However, the coexistence of limestone with slag in ternary blended cement paste restrained the hydration of calcium alumina phases of cement.

Author: Zhijun Tan, Guang Ye, Yun Gao, L. Machiels, E. Bruneel, G. De Schutter

Section: Science and production

Keywords: ternary blended cement, slag, kinetics, limestone, Portland cement