Differentiation of interlayer and adsorbed water in hydrated portland cement by thermal analysis

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DOIResolve DOI: http://doi.org/10.1016/0008-8846(71)90016-0
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TypeArticle
Journal titleCement and Concrete Research
ISSN0008-8846
Volume1
IssueNovember 6
Pages607620; # of pages: 14
Subjectportland cement; hydration; adsorption; moisture content; thermal engineering; Concrete; ciment portland; hydratation; adsorption; degre hygrometrique; hygrothermique
AbstractWork leading to the new model of hydrated portland cement has shown that much of the water previously considered to reside on free surfaces exists as interlayer water. In the present work samples were conditioned at various relative humidities for times varying from 1 1/2 to 14 months and were dried to two different levels before conditioning, one being d-dry. Conditions were chosen, based on the model, so that the different states of water could be clearly illustrated. It was concluded that thermal analysis allows differentiation of interlayer and physically adsorbed water and that the different degrees of drying and very long times allows for equilibration support all sorption results on which the new model of hydrated portland cement was based.
Publication date
LanguageEnglish
AffiliationNRC Institute for Research in Construction; National Research Council Canada
Peer reviewedYes
IdentifierDBR-RP-498
NRC number12184
3057
NPARC number20375865
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Record identifierb4ac3998-e414-488a-b168-c01216200b3c
Record created2012-07-23
Record modified2016-05-09
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