Structure, Formation, Properties, and Application of Calcium and Magnesium Silicate Hydrates System—A Review

Abstract

In order to expand the advantages of strong durability and high compressive strength of calcium silicate hydrates(C-S-H), at the same time to make up for the poor early mechanical strength of magnesium silicate hydrates (M-S-H), we present the features and advantages of C-S-H and M-S-H and a comprehensive review of the progress on CaO-MgO-SiO₂-H₂O. Moreover, we systematically describe natural calcium and magnesium silicate minerals and thermodynamic properties of CaO-MgO-SiO₂-H₂O. The effect of magnesium on C-S-H and calcium on M-S-H is summarized deeply; the formation and structural feature of CaO-MgO-SiO₂-H₂O is also explained in detail. Finally, the development of calcium and magnesium silicate hydrates in the future is pointed out, and the further research is discussed and estimated.

Keywords

calcium and magnesium silicate hydrates / thermodynamic properties / stability / structural feature

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