Stress-Strain Curves for High Strength Concrete at Elevated Temperatures
Publication: Journal of Materials in Civil Engineering
Volume 16, Issue 1
Abstract
The effects of high temperature on the strength and stress-strain relationship of high strength concrete (HSC) were investigated. Stress-strain curve tests were conducted at various temperatures (20, 100, 200, 400, 600, and for four types of HSC. The variables considered in the experimental study included concrete strength, type of aggregate, and the addition of steel fibers. Results from stress-strain curve tests show that plain HSC exhibits brittle properties below and ductility above HSC with steel fibers exhibits ductility for temperatures over The compressive strength of HSC decreases by about a quarter of its room temperature strength within the range of The strength further decreases with the increase of temperature and reaches about a quarter of its initial strength at The strain at peak loading increases with temperature, from 0.003 at room temperature to 0.02 at Further, the increase in strains for carbonate aggregate HSC is larger than that for siliceous aggregate HSC.
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References
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Information
Published In
Journal of Materials in Civil Engineering
Volume 16 • Issue 1 • February 2004
Pages: 84 - 90
Copyright
Copyright © 2004 American Society of Civil Engineers.
History
Received: Aug 28, 2001
Accepted: Jun 11, 2003
Published online: Jan 16, 2004
Published in print: Feb 2004
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