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Home > Publications > International Concrete Abstracts Portal
The International Concrete Abstracts Portal is an ACI led collaboration with leading technical organizations from within the international concrete industry and offers the most comprehensive collection of published concrete abstracts.
Title: Temperature Change Effect on Behavior of Cement Paste, Mortar, and Concrete Under Load
Author(s): Torben C. Hansen and Leif Eriksson
Publication: Journal Proceedings
Appears on pages(s): 489-504
Keywords: beam;cement paste; concrete; cracking; creep; deflection; internal damping; load; modulus of elasticity; mortar; research; temperature.
Abstract:Presents results of an experimental study of the effect of temperature changes between room temperature and 2 12 F on deflections of cement paste and mortar beams under load. It was found that: (a) cement paste and mortar beams deflect excessively when heated after application of load; (b) deflections occasionally lead to failure at low stresses and after moderate heating; (c) deflections increase with increasing rate of heating; (d) deflections are larger and the temperature at failure is lower for cement paste than for cement mortar; (e) deflections are larger and the temperature at failure is lower for saturated than for dry beams; (f) rapid rates of heating permanently reduces the modulus of elasticity of cement mortar, indicating internal destruction of the material structure; (g) thermal cycling leads to excessive deflections and occasionally to failure. A tentative explanation of the phenomena observed is suggested.
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