Mathematical Model of Temperature Changes in Concrete Pavements
Publication: Journal of Transportation Engineering
Volume 116, Issue 3
Abstract
When concrete pavement is subjected to a change in temperature, some time must elapse before a condition of equilibrium is again reached. In the transient heating and cooling processes that take place in the interim, there are three basic energy transfer modes: (1) Radiant; (2) convective; and (3) conductive heat transfer. As a concrete pavement's thermal environment changes, the physical mechanisms that underlie the heat‐transfer modes cause fluctuating temporal zones to occur within the pavement slab. For instance, during a freeze‐thaw cycle the upper portion of the pavement may be subject to thawing and refreezing while the bottom portion of the slab remains frozen. By using a finite‐difference computer model coupled with field and laboratory observations, the writers discuss how the rate and depth of temperature change can be accurately predicted. Freeze‐thaw cycles in which surface scaling occurred are used to illustrate one of the different kinds of exposure conditions that can be accurately simulated.
Get full access to this article
View all available purchase options and get full access to this article.
References
1.
Adkins, D. F. (1986). “Laboratory duplication of surface scaling.” Concr. Int.: Design and Constr., 8(2), 35–39.
2.
Hornbeck, R. W. (1975). Numerical methods, Quantum Publishers, New York, N.Y.
3.
Hudec, P., Maclnnis, C., and Moukwa, M. (1986). “The capacitance effect method of measuring moisture and salt content of concrete.” Cement and Concr. Res., 16(4), 481–490.
4.
Ritchie, T., and Davidson, J. L. (1968). “Moisture content and freeze‐thaw cycles of masonry materials.” J. Matls., 3(3), 658–671.
5.
Rodway, L. E. (1979). “Void spacing in exposed concrete flatwork.” Concr. Int., 1(2), 83–89.
6.
“Structures need a low‐sodium diet.” (1988). ENR: The McGraw‐Hill constr. weekly. 220(12), 28–31.
Information & Authors
Information
Published In
Copyright
Copyright © 1990 ASCE.
History
Published online: May 1, 1990
Published in print: May 1990
Authors
Metrics & Citations
Metrics
Citations
Download citation
If you have the appropriate software installed, you can download article citation data to the citation manager of your choice. Simply select your manager software from the list below and click Download.