Basic creep of hardened cement paste A re-examination of the role of water

A re-examination of the role which water plays in the creep process of hardened cement paste (hcp) was made using a differential thermogravimetric technique. Prior to creep experiments in a controlled humidity chamber, very thin specimens of cement paste (<1 mm) were subjected to various drying r...

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Bibliographic Details
Published inCement and concrete research Vol. 30; no. 9; pp. 1465 - 1475
Main Authors Tamtsia, Basile T, Beaudoin, James J
Format Journal Article
LanguageEnglish
Published New York, NY Elsevier Ltd 01.09.2000
Elsevier Science
Subjects
Applied sciences
Buildings. Public works
Cement concrete constituents
Cements
D-dry and compliance rates
Exact sciences and technology
Materials
Properties and test methods
Properties of anhydrous and hydrated cement, test methods
Solvent exchange
Specific basic creep
Water
Water
Specific basic creep
D-dry and compliance rates
Solvent exchange
Solvent effect
Saturation state
Thermogravimetric analysis
Creep
Theory
Slip
Mass loss
Regression analysis
Experimental study
CSH phase
Hardened cement paste
Thermal activation
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Summary:A re-examination of the role which water plays in the creep process of hardened cement paste (hcp) was made using a differential thermogravimetric technique. Prior to creep experiments in a controlled humidity chamber, very thin specimens of cement paste (<1 mm) were subjected to various drying regimes including exchange of water with organic solvents for 48 h followed by a gentle drying procedure. Cement paste specimens with or without evaporable water will exhibit significant creep suggesting a mechanism involving microsliding between C-S-H sheets.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:0008-8846
1873-3948
DOI:10.1016/S0008-8846(00)00279-9