Abstract
Tricalcium silicate (C3S) was synthesized at 1500oC using calcium carbonate and silicon oxide. The formation of the hydrates of C3S in the presence of 10% styrene-butadiene rubber (SBR) latex was evaluated. The morphology of the calcium silicate hydrate (C-S-H) was studied using SEM, and the calcium to silica ratio of the C-S-H was studied using EDS. The results show that the SBR latex forms film on the surface of the C3S particles and the C-S-H and delays the hydration of C3S. The C-S-H in the paste modified by SBR latex is shorter and thicker than that in the control at the same hydration time. After 1 day, the calcium to silica ratio of the modified paste is higher than that of the control.
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