Effect of asphalt binder oxidation on the modulus of asphalt concrete mixtures

B. Shane Underwood, Cheol Min Baek, Y. Richard Kim

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    Abstract

    Oxidative aging of asphalt binder is a well-known phenomenon that has been studied by numerous researchers. Significant breakthroughs have been made in the fundamental understanding of this phenomenon at the asphalt binder level, and practicing engineers now have the tools needed to quantitatively assess the oxidative aging potential of these materials. Conversely, pavement engineers do not have a reliable method to assess the oxidative aging potential of an asphalt mixture because it is unclear exactly how aging in the asphalt binder affects the behaviour of asphalt mixture. Analysis that supports the use of existing models for this purpose is shown in this paper. The study begins with an examination of the effects of oxidative aging on binder and mixture moduli. Then, four existing predictive models that relate these moduli are examined. It is found that all four models do an adequate job of predicting the effect of asphalt binder oxidation on asphalt mixture modulus, but that two of the models, the Witczak models, match the trends observed in mixture experiments the best.

    Original languageEnglish (US)
    Title of host publicationAsphalt Pavements - Proceedings of the International Conference on Asphalt Pavements, ISAP 2014
    PublisherTaylor and Francis - Balkema
    Pages837-847
    Number of pages11
    Volume1
    ISBN (Print)9781138027121
    StatePublished - 2014
    Event12th International Conference on Asphalt Pavements, ISAP 2014 - Raleigh, NC, United States
    Duration: Jun 1 2014Jun 5 2014

    Other

    Other12th International Conference on Asphalt Pavements, ISAP 2014
    CountryUnited States
    CityRaleigh, NC
    Period6/1/146/5/14

    Fingerprint

    Asphalt concrete
    Concrete mixtures
    Asphalt
    Binders
    Aging of materials
    Asphalt mixtures
    Oxidation
    Engineers
    Pavements
    Experiments

    Keywords

    • Asphalt binder
    • Asphalt mixture
    • Dynamic modulus
    • Oxidative aging

    ASJC Scopus subject areas

    • Building and Construction
    • Architecture

    Cite this

    Underwood, B. S., Baek, C. M., & Kim, Y. R. (2014). Effect of asphalt binder oxidation on the modulus of asphalt concrete mixtures. In Asphalt Pavements - Proceedings of the International Conference on Asphalt Pavements, ISAP 2014 (Vol. 1, pp. 837-847). Taylor and Francis - Balkema.

    Effect of asphalt binder oxidation on the modulus of asphalt concrete mixtures. / Underwood, B. Shane; Baek, Cheol Min; Kim, Y. Richard.

    Asphalt Pavements - Proceedings of the International Conference on Asphalt Pavements, ISAP 2014. Vol. 1 Taylor and Francis - Balkema, 2014. p. 837-847.

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    Underwood, BS, Baek, CM & Kim, YR 2014, Effect of asphalt binder oxidation on the modulus of asphalt concrete mixtures. in Asphalt Pavements - Proceedings of the International Conference on Asphalt Pavements, ISAP 2014. vol. 1, Taylor and Francis - Balkema, pp. 837-847, 12th International Conference on Asphalt Pavements, ISAP 2014, Raleigh, NC, United States, 6/1/14.
    Underwood BS, Baek CM, Kim YR. Effect of asphalt binder oxidation on the modulus of asphalt concrete mixtures. In Asphalt Pavements - Proceedings of the International Conference on Asphalt Pavements, ISAP 2014. Vol. 1. Taylor and Francis - Balkema. 2014. p. 837-847
    Underwood, B. Shane ; Baek, Cheol Min ; Kim, Y. Richard. / Effect of asphalt binder oxidation on the modulus of asphalt concrete mixtures. Asphalt Pavements - Proceedings of the International Conference on Asphalt Pavements, ISAP 2014. Vol. 1 Taylor and Francis - Balkema, 2014. pp. 837-847
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