Compositional Model for Calcium Silicate Hydrate (C-S-H) Gels, Their Solubilities, and Free Energies of Formation

Fredrik P. Glasser*, Eric E. Lachowski, Donald E. Macphee

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

69 Citations (Scopus)


A compositional model for C-S-H(I) is proposed which takes account of the available structural evidence and is applied to solubility data for gels of known Ca/Si ratios in the approximate range 1. 0 to 1. 4. This composition range does not encompass the full range found in Portland cement pastes but may be applicable to certain blended cements, especially those into which a siliceous additive has been incorporated so as to lower the Ca/Si ratio to 1. 4.

Original languageEnglish
Pages (from-to)481-485
Number of pages5
JournalJournal of the American Ceramic Society
Issue number7
Publication statusPublished - Jul 1987

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