A study of the state of water and stoichiometry of bottle- hydrated Ca3SiO5

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DOIResolve DOI: http://doi.org/10.1016/0008-8846(74)90130-6
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TypeArticle
Journal titleCement and Concrete Research
ISSN0008-8846
Volume4
IssueMarch 2
Pages155166; # of pages: 12
Subjecthydrated cement; calcium; silicate; chemical quantitative analysis; relative humidity; Concrete; ciment hydrate; calcium; silicate; analyse chimique quantitative; humidite relative
AbstractThe state of water in hydrated C[3]S is studied by Differential Thermal Analysis and Thermo Gravimetric Analysis techniques. Samples were conditioned at several relative humidities for lengthy periods starting from d-dry, 100 per cent R.H. and 11 per cent R.H. It was found that the stoichiometry of the bottle-hydrated C-S-H gel at 11 per cent R.H. approached from 100 per cent R.H. is 3.28 CaO: 2SiO[2]: 3.92H[2]O. Results suggested that at higher humidities higher hydrates exist which decomposed on drying at relative humidities below 40 per cent R.H. Decomposition might occur at humidities above this level.
Publication date
LanguageEnglish
AffiliationNRC Institute for Research in Construction; National Research Council Canada
Peer reviewedYes
IdentifierDBR-RP-588
NRC number13778
3003
NPARC number20375985
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Record identifier3729b5fb-1d6a-44d8-a069-9743fb7a0f58
Record created2012-07-23
Record modified2016-05-09
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