Model for the developing microstructure in Portland cement pastes
Journal Article
·
· Journal of the American Ceramic Society; (United States)
- Northwestern Univ., Evanston, IL (United States)
A method is proposed for quantitatively predicting the volume of the major phases in hydrated cement pastes as a function of (1) the composition of the cement, (2) the degree of reaction, and (3) the initial water: cement ratio. This procedure is then used to develop a quantitative model for the surface area and volume of porosity that is accessible to nitrogen in calcium silicate hydrate (C-S-H). Published values for surface areas and volume of pores are compared with the predictions made by the model. An implication of the model is that there are two types of C-S-H, or perhaps regions within the C-S-H: one that nitrogen can penetrate and one that it cannot.
- DOE Contract Number:
- FG02-91ER45460
- OSTI ID:
- 6870718
- Journal Information:
- Journal of the American Ceramic Society; (United States), Journal Name: Journal of the American Ceramic Society; (United States) Vol. 77:12; ISSN 0002-7820; ISSN JACTAW
- Country of Publication:
- United States
- Language:
- English
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