Linear Viscoelastic Modeling for Hot-Poured Crack Sealants at Low Temperature
Publication: Journal of Materials in Civil Engineering
Volume 22, Issue 10
Abstract
To understand the behavior of hot-poured bituminous-based crack sealants at low service temperatures and to predict their field performance, a constitutive stress-strain relationship must be described. This would allow predicting in situ crack sealant response to both thermal and traffic loading. This paper verifies the linear viscoelastic behavior of crack sealants. Ten sealants having high polymer contents were tested at −4 to using a Crack Sealant Bending Beam Rheometer (CSBBR). The convolution integral principle was used to obtain relaxation moduli from measured creep compliance data. A Prony series viscoelastic model was used to characterize mechanical behavior of crack sealant at low temperatures. The sealant’s linear response was checked by implementing two conditions of linearity described by Marasteanu and Anderson. Simulation for the sealant linear viscoelastic deflection response during the loading and unloading was conducted using a three-dimensional finite-element model. This study concludes that mechanical behavior of crack sealants may be accurately described by a linear viscoelastic model at low service temperatures.
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Acknowledgments
This study is based upon work supported by the Federal Highway Administration and the U.S.-Canadian Crack Sealant Consortium under pool fund Award No. UNSPECIFIEDTPF5 (045). The contribution of the participating states, industry, and provinces is greatly appreciated. The contents of this paper reflect the view of the writers, who are responsible for the facts and the accuracy of the data presented herein. The content does not necessarily reflect the official views or policies of the participating Departments of Transportation in the pool-fund or the Federal Highway Administration. This paper does not constitute a standard, specification, or regulation. The writers would like to acknowledge the assistance of J.-F. Masson, A. Loulizi, and M. Elseifi.
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Information & Authors
Information
Published In
Journal of Materials in Civil Engineering
Volume 22 • Issue 10 • October 2010
Pages: 996 - 1004
Copyright
© 2010 ASCE.
History
Received: Apr 24, 2009
Accepted: Feb 8, 2010
Published online: Mar 16, 2010
Published in print: Oct 2010
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