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

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ConferenceWorkshop on Role of Calcium Hydroxide in Hydration and Deterioration of Concrete - Invited Contribution: 01 November 2000, Anna Maria Island, Fla.
Pages131142; # of pages: 12
Subjectcalcium hydroxide, cement; Concrete
AbstractCalcium 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
AffiliationNRC Institute for Research in Construction; National Research Council Canada
Peer reviewedYes
NRC number44493
NPARC number20386518
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Record identifier9cb2e256-ef7d-40ad-a19f-fd9417db8410
Record created2012-07-25
Record modified2016-05-09
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