Effect of Temperature on the Setting Behavior of Concrete
Publication: Journal of Materials in Civil Engineering
Volume 22, Issue 3
Abstract
The effects of fluctuating temperatures on the setting times of concrete mixtures made with different water-to-cement ratios, supplementary cementing materials (SCMs), and SCM dosages are evaluated in this paper. Initial and final set times of the concrete were determined with penetration resistance testing. Wet-sieved mortar samples were placed in hot and cold water baths that cycled over 24 h between temperature ranges of 32– and 4– , respectively. The control samples were cured at temperatures between 20 and . Results show that Class F fly ash will slightly retard setting, ground granulated blast furnace slag will slightly accelerate setting, and Class C fly ash will significantly increase setting times. It is shown that the equivalent age maturity method may be used to estimate setting times of concrete samples cured under fluctuating temperatures. Activation energy values are recommended for use with the equivalent age maturity method to predict setting.
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Acknowledgments
Funding for this study was provided by the Alabama DOT (ALDOT). The funding, cooperation, and assistance of ALDOT are gratefully acknowledged, particularly the guidance provided by Larry Lockett and Sergio Rodriguez. The contents of this paper reflect the views of the writers who are responsible for the facts and accuracy of the data presented. The contents do not necessarily reflect the official views or policies of ALDOT.
References
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Information & Authors
Information
Published In
Journal of Materials in Civil Engineering
Volume 22 • Issue 3 • March 2010
Pages: 214 - 222
Copyright
© 2010 ASCE.
History
Received: Aug 6, 2007
Accepted: Oct 23, 2009
Published online: Feb 12, 2010
Published in print: Mar 2010
Notes
Note. Associate Editor: Carl Liu
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