Inclusion of Built-In Curling Temperature Profile in Curling-Stress Determination for Rigid Pavement
Publication: Journal of Transportation Engineering
Volume 141, Issue 4
Abstract
There is a significant difference on the setting temperature gradient when concrete paving is conducted under different conditions. The strain distribution through the depth of portland cement concrete slab changes greatly after considering the setting temperature profile. Currently, the consideration on built-in curling is simplified to the temperature difference between the top and bottom of portland cement concrete slab. The primary objective of this paper was to develop an approach that is capable of incorporating the nonlinearity of the setting temperature gradient into the determination of nonlinear curling stress. Typical weather conditions in summer and fall were also selected to illustrate the influence of built-in curling on the curling stress determination. Furthermore, to better understand the effect of paving conditions on pavement performance, comparisons of transverse cracking and longitudinal cracking between 47 test sections constructed in the summer and 43 sections constructed in the cooler seasons in long-term pavement performance database were performed. Pavement performance corresponded with the curling stress analysis in the research reported in this paper.
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Acknowledgments
The research reported in this paper was funded by the Natural Science Foundation of Heilongjiang Province, China (Grant No. ZD201218). The writers appreciate the valuable suggestions from Dr. Dan G. Zollinger in Texas A&M University.
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Information & Authors
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Published In
Journal of Transportation Engineering
Volume 141 • Issue 4 • April 2015
Copyright
© 2014 American Society of Civil Engineers.
History
Received: Apr 15, 2014
Accepted: Sep 25, 2014
Published online: Nov 19, 2014
Published in print: Apr 1, 2015
Discussion open until: Apr 19, 2015
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