Nano Silica in Cement Hydration
2018
Abstract In this paper, the performance of nanoscale SiO 2 in cement paste has been studied. The compressive strength of hardened cement paste and the formation of Calcium Silicate Hydrate (C-S-H) in presence of nano silica (SiO 2 ) increased. Heat of hydration increased with time with the addition of nanosilica. Core shell nanocomposite of titania and nanosilica acted as a cleaning agent and increased the compressive strength of the cement paste. It is concluded that nano silica accelerated the hydration by increasing the amount of C-S-H phase and also acting as a nucleating agent.
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