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
Volume:
63
Issue:
4
Appears on pages(s):
489-504
Keywords:
beam;cement paste; concrete; cracking; creep; deflection; internal damping; load; modulus of elasticity; mortar; research; temperature.
DOI:
10.14359/7635
Date:
4/1/1966
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.