STP807: Determination of the Presence of Antistripping Agents in Asphalt Cement by High-Performance Liquid Chromatography

    Gilmore, DW
    Members of the Research & Development Department, Thiokol/Carstab Corporation, Cincinnati, Ohio

    Weisman, MR
    Members of the Research & Development Department, Thiokol/Carstab Corporation, Cincinnati, Ohio

    Dalter, RS
    Members of the Research & Development Department, Thiokol/Carstab Corporation, Cincinnati, Ohio

    Kugele, TG
    Members of the Research & Development Department, Thiokol/Carstab Corporation, Cincinnati, Ohio

    Pages: 9    Published: Jan 1983


    Abstract

    Chemical agents are often introduced into asphalt for the purpose of influencing the performance of bituminous concrete. The presence of these added chemicals can serve to complicate already difficult methods for asphalt compositional analysis. A description of high performance liquid chromatography (HPLC) techniques that aid in identifying antistripping additives in asphalt is presented. The method is sensitive to both the additive and the asphalt. The utility of HPLC as a probe in investigating the effects of thermal conditioning on asphalt/additive combinations is demonstrated.

    Keywords:

    antistripping agents, asphalt, asphalt cement, asphalt modifiers, chemical composition, high performance liquid chromatography, size separation chromatography, reverse-phase chromatography, pavements, flexible pavement


    Paper ID: STP31800S

    Committee/Subcommittee: D04.48

    DOI: 10.1520/STP31800S


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