Effect of Asphalt Mix Design Method on Binder and Gradation Selection

    Volume 27, Issue 1 (January 1999)

    ISSN: 0090-3973

    CODEN: JTEOAD

    Page Count: 10


    Sousa, JB
    SHRP Corporation, Walnut Creek, CA

    Prates, M
    Direcção dos Serviços de Apoio Técnico, Junta Autónoma de Estra das de Portugal, Praça da Portagem, Almada,

    Barros, R
    Direcção dos Serviços de Apoio Técnico, Junta Autónoma de Estra das de Portugal, Praça da Portagem, Almada,

    Langlois, P
    Ministère des Transportes du Quebec, QC

    Leclerc, AM
    Ministère des Transportes du Quebec, QC

    Briggs, B
    Washington Department of Transportation, Olympia, WA

    (Received 17 October 1997; accepted 17 July 1998)

    Abstract

    To investigate the hypothesis that Superpave Volumetric mix design yields superior performing mixes overall, the Portuguese Road Directorate (JAE) compared the performance of Superpave mixes with the performance of other mixes. The comparisons were made with gradations that pass through, above, and below the restricted zone. Performance was evaluated using the Marshall test, the Hveem test, the Repetitive Simple Shear Test at Constant Height, the Four Point Bending Fatigue Test, and the French Wheel Tracking Device. These research efforts led to consideration as to what extent the binder and gradation selections are dependent on the mix design tool. The results indicate that some Superpave mixes yield the lowest laboratory performance in some of the tests.


    Paper ID: JTE12040J

    DOI: 10.1520/JTE12040J

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    Author
    Title Effect of Asphalt Mix Design Method on Binder and Gradation Selection
    Symposium , 0000-00-00
    Committee D04