Volume 27, Issue 5 (September 1999)

    Prediction of Fatigue Performance of Asphalt Concrete Mixes

    (Received 30 March 1999; accepted 8 June 1999)

    CODEN: JTEOAD

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    Abstract

    The suitability of dense-graded hot-mix asphalt concrete mixtures for fatigue-resistant flexible pavements is investigated. The fatigue lives of several mixes including those with additives of latex, rubber, and sulfur are predicted by a theory derived from fracture mechanics. There is good agreement between the model predictions for the fatigue lives and the experimental results for the laboratory tests. The material properties are then used to predict the fatigue performance of two of these mixes in a simulated full-depth flexible pavement and a three-layer flexible pavement. There is poor agreement between the model predictions for the performance of the simulated pavements and the laboratory tests. Several reasons are postulated for the differences in the fatigue lives for the laboratory beam tests and the simulated pavements.


    Author Information:

    Ramsamooj, DV
    Professor of Civil Engineering, California State University, Fullerton, CA


    Stock #: JTE12235J

    ISSN: 0090-3973

    DOI: 10.1520/JTE12235J

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    Author
    Title Prediction of Fatigue Performance of Asphalt Concrete Mixes
    Symposium , 0000-00-00
    Committee E08