Crystalline hydrates in cement pastes
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Australasian Ceramic Society
Abstract
The calcium silicates in Portland cement hydrate at room temperature to form portlandite and amorphous calcium silica hydrate gel (C-S-H). However when Portland cement is hydrated at higher temperatures, between 50 and 100°C, crystalline calcium silicon hydrates such as atwillite and alpha di-calcium silicate hydrate start to form. This paper discusses the differences that could explain the formation of the amorphous C-S-H at room temperatures.
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Aldridge, L. P., & Bertram, W. K. (1998). Crystalline hydrates in cement pastes. Presentation to PacRim2 : the 2nd International Meeting of Pacific Rim Ceramic Societies (incorporating Austceram 96) : 15-17 July 1996, Cairns, Australia. In Walls, P., Sorrell, C. C., Ruys, A., Australasian Ceramic Society., Pacific Rim Ceramic Society., & International Ceramic Society. (1998). PacRim2 : the 2nd international meeting of Pacific Rim Ceramic Societies (incorporating Austceram 96) : 15-17 July 1996, Cairns, Australia. In International ceramic monographs; Vol. 2, Menai, NSW : Australasian Ceramic Society.