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Mechanism of dehydration of calcium suphate dihydrate: application of the helium pyknometric technique

From National Research Council Canada

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  1. National Research Council of Canada
FormatText, Article
SubjectConcrete; calcium; sulphate; dehydration; helium; helium diffusion technique; beta-hemihydrate dehydration
Abstract
A technique involving helium diffusion has been applied to a study of the dehydration of CaSO[4].2H[2]O in vacuo. New evidence supports arguments that removal of water from the beta-hemihydrate is `zeolite-like' and that small amounts of tightly held water block entrances to microspace in the beta- hemihydrate structure. An appraisal is given of density measurements and changes due to dehydration processes.
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  • Journal of the Chemical Society Faraday Transactions 79 (1983): 2071–2075.
LanguageEnglish
Peer reviewedYes
IdentifierDBR-P-1154
NRC numberNRCC 22855
NRC-IRC-3331
NPARC number20375561
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Record identifier1c5475b5-c5f8-426f-ab19-1ed1f2eac695
Record created2012-07-23
Record modified2024-03-22
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