Characterization of asphalt binders based on chemical and physical properties

J. Billy Wei, Jeffrey C. Shull, Yong Joon Lee, Martin C. Hawley

    Research output: Contribution to journalArticle

    • 8 Citations

    Abstract

    The chemical compositions and physical properties of unmodified and polymer-modified asphalts were studied using high-performance gel permeation chromatography (GPC), Fourier transform infrared spectroscopy (FTIR), dynamic mechanical analysis (DMA), thermal mechanical analysis (TMA), and differential scanning calorimetry (DSC). Two viscosity-based asphalt grades (AC-5 and AC-10) and two polymers, namely, styrene-butadiene-styrene (SBS) and styrene-ethylene-butylene-styrene (SEBS) were used to modifiy asphalt in this study. The combination of GPC and FTIR was found to be an excellent approach for fingerprinting and quality control of polymers and asphalt binders. The rheological properties of asphalt binders were determined to be good characteristics for determining the optimum polymer concentrations for effective modification. The DSC results indicated that different asphalt grades have different levels of polar associations as detected from changes in enthalpy. Polymer modification alters these associations. TMA was a fast method for determining the highest possible service temperature of the pavement.

    Original languageEnglish (US)
    Pages (from-to)33-58
    Number of pages26
    JournalInternational Journal of Polymer Analysis and Characterization
    Volume3
    Issue number1
    StatePublished - 1996

    Profile

    Asphalt
    Polymers
    Styrene
    Binders
    Alginates
    Gel permeation chromatography
    Fourier transform infrared spectroscopy
    Differential scanning calorimetry
    Physical properties
    Association reactions
    Hexosaminidase A
    DEET
    Abducens Nerve
    Hot Temperature
    Dynamic mechanical analysis
    Butadiene
    Pavements
    Chemical properties
    Quality control
    Enthalpy

    Keywords

    • Asphalt
    • Binder
    • Chromatography
    • GPC
    • Polar association
    • Polymer modification

    ASJC Scopus subject areas

    • Polymers and Plastics
    • Materials Chemistry

    Cite this

    Characterization of asphalt binders based on chemical and physical properties. / Wei, J. Billy; Shull, Jeffrey C.; Lee, Yong Joon; Hawley, Martin C.

    In: International Journal of Polymer Analysis and Characterization, Vol. 3, No. 1, 1996, p. 33-58.

    Research output: Contribution to journalArticle

    Wei, J. Billy; Shull, Jeffrey C.; Lee, Yong Joon; Hawley, Martin C. / Characterization of asphalt binders based on chemical and physical properties.

    In: International Journal of Polymer Analysis and Characterization, Vol. 3, No. 1, 1996, p. 33-58.

    Research output: Contribution to journalArticle

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