Theory of Crack Spacing in Concrete Pavements
Publication: Journal of Engineering Mechanics
Volume 123, Issue 3
Abstract
A simple analytical model is developed to predict the average crack spacing and crack depth in highway pavements due to thermal loading. The pavement is modeled as a beam on a Winkler elastic foundation. The effect of cracks on the pavement is considered on the basis of compliance functions. A simple method is introduced to describe the behavior of the pavement material according to nonlinear fracture mechanics. It is shown that the material length in the fracture model should be defined by the total fracture energy, rather than the effective fracture energy. The effect of nonlinearity in the distribution of thermal stress across the pavement depth is also analyzed. The foundation of the pavement is found to have little importance. The theoretical predictions are shown to compare well with field observations on asphalt pavements.
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Information & Authors
Information
Published In
Journal of Engineering Mechanics
Volume 123 • Issue 3 • March 1997
Pages: 267 - 275
Copyright
Copyright © 1997 American Society of Civil Engineers.
History
Published online: Mar 1, 1997
Published in print: Mar 1997
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