Nonlinear Viscoelastic Properties of Bituminous Concretes

    Volume 3, Issue 3 (May 1975)

    ISSN: 0090-3973

    CODEN: JTEOAD

    Page Count: 9


    Sharma, MG
    Associate professor and graduate student, The Pennsylvania State University, University Park, Pa.

    Kim, KS
    Associate professor and graduate student, The Pennsylvania State University, University Park, Pa.

    Abstract

    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.


    Paper ID: JTE10160J

    DOI: 10.1520/JTE10160J

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    Author
    Title Nonlinear Viscoelastic Properties of Bituminous Concretes
    Symposium , 0000-00-00
    Committee D04