Environmental Effects on the Behavior of Jointed Plain Concrete Pavements
Publication: Journal of Transportation Engineering
Volume 131, Issue 2
Abstract
A concrete slab was constructed at Texas A&M University to investigate environmental effects in terms of temperature and moisture effects on the behavior of jointed plain concrete pavements. The slab behavior was delineated relative to equivalent linear temperature and humidity differences as a function of time. As expected, the trends of these differences were found to relate with the trends of ambient temperature and relative humidity. The slab had daily periods of tensile and compressive strain corresponding to the daily changes in the ambient temperature and relative humidity. Furthermore, the trends in the slab displacements were clearly dependent upon the changes in ambient temperature and slab temperature gradients. Drying shrinkage and creep strains primarily in the vicinity of the top surface appeared to cause an overall shift in the slab movements. This shift manifest in both the strain and vertical displacement of the slab was determined from data collected up to after placement of the concrete.
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Acknowledgments
The research in this paper was sponsored by the Federal Highway Administration (FHWA). The writers express gratitude to the FHWA for financial support.
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Information & Authors
Information
Published In
Journal of Transportation Engineering
Volume 131 • Issue 2 • February 2005
Pages: 140 - 148
Copyright
© 2005 ASCE.
History
Received: Sep 11, 2002
Accepted: Jan 21, 2004
Published online: Feb 1, 2005
Published in print: Feb 2005
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