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    Fatigue of Asphalt Concrete Mixtures—Summary of Existing Information

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    In order that considerations for fatigue distress of the asphalt concrete may be incorporated into pavement design procedures, it is necessary that definitive information on the fatigue behavior of asphalt concrete mixtures be determined. Data are presented based on a review of the literature as well as our research, which illustrate the effects of a number of mixture variables on fatigue response and include an indication of the influence of: mixture stiffness, air void content, aggregate gradation, aggregate type, asphalt content, and asphalt type.

    A literature review indicates the variation of air void content, aggregate gradation, and asphalt content to be expected on typical construction projects. This information together with the fatigue data presented previously allows the engineer to assess the relative importance of these mixture variables on predicting the performance of pavements. Asphalt content and test temperature appear to be more critical than the variation associated with aggregate gradation, asphalt hardness, and air void content.


    bituminous concretes, fatigue (materials), aggregates, asphalts, admixtures, stiffness, pavements, cracking (fracturing), stresses, strains, flexible, pavements, deformation, crack initiation, crack propagation

    Author Information:

    Epps, JA
    Assistant professor of civil engineering and assistant research engineer, Texas Transportation Institute, Texas A & M University, College Station, Tex.

    Monismith, CL
    Professor of civil engineering and research engineer, Institute of Transportation and Traffic Engineering, University of California, Berkeley, Calif.

    Committee/Subcommittee: D04.39

    DOI: 10.1520/STP38807S