Calcium hydroxide in cement matrices: physico-mechanical and physico-chemical contributions

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Author	Search for: Beaudoin, J. J.
Format	Text, Article
Conference	Workshop on Role of Calcium Hydroxide in Hydration and Deterioration of Concrete - Invited Contribution: 01 November 2000, Anna Maria Island, Fla.
Subject	Concrete; calcium hydroxide; cement
Abstract	Calcium hydroxide (CH) represents a significant volume of the products formed from the cement-water reaction. The extent to which the CH phase contributes to the engineering integrity and volume stability of cement-based binders is however moot. Evidence in support of the view that calcium hydroxide has a significant role in determining the mechanical performance and volume stability of cementitious materials is presented. The elastic properties and fracture behavior of CH and CH - C-S-H mixtures are described. Volume stability of CH is described with reference to water sorption isotherms (CH) and length change measurements in various solvents and salt solutions. A dissolution-based expansion mechanism in which CH plays a major role is described for the behavior of cement binders in aggressive media.
Publication date	2001-08-01
Note	A version of this paper is published in: Calcium Hydroxide in Concrete in Materials Science of Concrete, Special Volume, November 2000, pp. 131-142
Language	English
Peer reviewed	Yes
NRC number	NRCC 44493 NRC-IRC-10151
NPARC number	20386518
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Record identifier	9cb2e256-ef7d-40ad-a19f-fd9417db8410
Record created	2012-07-25
Record modified	2020-03-27

Date modified:: 2024-05-03