Volume 42, Issue 5 (September 2014)

    Advanced Testing and Characterization of Shear Modulus and Deformation Characteristics of Oil Sand Materials

    (Received 26 February 2013; accepted 17 December 2013)

    Published Online: 2014

    CODEN: JTEOAD

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    Abstract

    Oil sands are natural deposits of sand materials that are rich in bitumen. Limited studies have been conducted to determine the dynamic behavior of oil sand materials. Recent difficulties encountered in oil sand mine fields in Canada substantiated the need to characterize the stress dependent, visco-elastic, and plastic behavior of oil sand materials under dynamic loading of off-road construction and mining equipment. This paper introduces a new cyclic triaxial test procedure for determining shear modulus and deformation characteristics of oil sand materials. The test procedure was used to characterize shear moduli of three oil sand materials with varying bitumen contents. From the test results, nonlinear shear modulus models were successfully developed to characterize temperature and stress dependent behavior of the tested oil sand materials. The research findings indicate that the new laboratory approach is an improvement on conventional tests, especially when oil sand materials need to be evaluated in the field for subgrade construction and equipment mobility.


    Author Information:

    Anochie-Boateng, Joseph K.
    Principal Research Engineer, Built Environment Unit, Council for Scientific and Industrial Research (CSIR), Pretoria,

    Tutumluer, Erol
    Professor and Paul F. Kent Endowed Faculty Scholar, Department of Civil and Environmental Engineering, Univ. of Illinois at Urbana-Champaign, Urbana, IL


    Stock #: JTE20130049

    ISSN: 0090-3973

    DOI: 10.1520/JTE20130049

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    Author
    Title Advanced Testing and Characterization of Shear Modulus and Deformation Characteristics of Oil Sand Materials
    Symposium , 0000-00-00
    Committee D18