Journal Published Online: 01 May 1975
Volume 3, Issue 3

Nonlinear Viscoelastic Properties of Bituminous Concretes



Viscoelastic properties of bituminous concretes have been studied by observing creep behavior under a large range of compressive stress levels and temperatures. Effect of air void content on the creep properties has been observed. Results indicate that the test materials display linear viscoelastic properties only at low stress levels and temperatures. Master creep compliance curves corresponding to the linear range were obtained using the time-temperature shift hypothesis. The nonlinear creep behavior that is found to occur at higher stress levels and temperature has been characterized by the nonlinear viscoelasticity theory and the creep compliance functions based upon this theory were evaluated for the test materials. It is found that an increase in air void ratio leads to higher creep strains for a given stress level.

Author Information

Sharma, MG
The Pennsylvania State University, University Park, Pa.
Kim, KS
The Pennsylvania State University, University Park, Pa.
Pages: 9
Price: $25.00
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Stock #: JTE10160J
ISSN: 0090-3973
DOI: 10.1520/JTE10160J