Modified thermal analysis equipment and technique for study under controlled humidity conditions

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TypeArticle
Journal titleThermochimica acta
ISSN0040-6031
Volume2
Issue5
Pages393403; # of pages: 11
Subjectcement; differential thermal analysis; thermogravimetry; moisture content; measuring instruments; Concrete
AbstractAn apparatus is described that enables samples to be run on both DTA and TGA with prior exposure only to a desired condition. Results are presented for porous glass and hydrated portland cement. For porous glass the runs obtained by a vacuum sorption balance can be reproduced by thermal analysis of separately conditioned samples, and no distinction can be made between monolayer and multilayer adsorbed water. For hydrated portland cement, however, two peaks were detected and interpreted, respectively, as interlayer and adsorbed water. This supports the new model for hydrated portland cement.
Publication date
LanguageEnglish
AffiliationNRC Institute for Research in Construction; National Research Council Canada
Peer reviewedYes
IdentifierDBR-RP-477
NRC number11875
2990
NPARC number20375547
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Record identifier1444ce9c-810c-4c83-a0e2-5cccde4f0012
Record created2012-07-23
Record modified2016-05-09
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