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An Ideal Solid Solution Model for C–S–H
Author(s) -
Bullard Jeffrey W.,
Scherer George W.
Publication year - 2016
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/jace.14493
Subject(s) - solid solution , aqueous solution , silicate , thermodynamics , solubility , hydrate , composition (language) , ideal (ethics) , clathrate hydrate , calcium silicate hydrate , chemistry , mineralogy , materials science , physics , organic chemistry , metallurgy , cement , linguistics , philosophy , epistemology
A model for an ideal solid solution, developed by Nourtier‐Mazauric et al. [Oil & Gas Sci. Tech. Rev. IFP, 60 [2] (2005) 401], is applied to calcium–silicate–hydrate (C–S–H). Fitting the model to solubility data reported in the literature for C–S–H yields reasonable values for the compositions of the end‐members of the solid solution and for their equilibrium constants. This model will be useful in models of hydration kinetics of tricalcium silicate because it is easier to implement than other solid solution models, it clearly identifies the driving force for growth of the most favorable C–S–H composition, and it still allows the model to accurately capture variations in C–S–H composition as the aqueous solution changes significantly at early hydration times.