Volume 26, Issue 3 (May 1998)

    Adapting Superpave Technology to Design of Hot Recycled Mixes

    (Received 7 February 1997; accepted 20 October 1997)

    CODEN: JTEOAD

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    Abstract

    Mix design procedures for recycled asphalt pavements require the selection of virgin asphalt or recycling agent and recycled hot mix asphalt (HMA) mix design. This research project was undertaken (a) to develop a procedure for selecting the performance grade (PG) of virgin asphalt binder based on the Superpave PG grading system and (b) to design hot recycled mix using Superpave technology. Blending charts were constructed and used to select the PG grade of virgin asphalt binder for mixes with 0, 20, 30, and 40 percent of recycled asphalt pavement material (RAP). Superpave volumetric mix design were conducted on mixes with 0, 20, 30, and 40 percent RAP. Evaluation of the volumetric properties of these mixes has indicated that the Superpave volumetric mix design procedures can be adapted to design recycled HMA mixtures with minimal modification.


    Author Information:

    Foo, KY
    Assistant professor, Bradley University, Peoria, IL

    Kandhal, PS
    Associate director, National Center for Asphalt Technology, Auburn University, AL


    Stock #: JTE11993J

    ISSN: 0090-3973

    DOI: 10.1520/JTE11993J

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    Author
    Title Adapting Superpave Technology to Design of Hot Recycled Mixes
    Symposium , 0000-00-00
    Committee D04