Abstract This paper investigates the damage-healing properties of unmodified and polymer modified asphalt binders under different aging levels using newly developed linear amplitude sweep based healing (LASH) test. One neat asphalt 70# and one Styrene-Butadiene-Styrene (SBS) modified asphalt are selected in this study. The original binders are subjected to the Rolling Thin Film Oven (RTFO) and Pressurized Aging Vessel (PAV) tests for stimulating the short- and long-term aging of asphalt binders during the pavement construction and service phases. Through the LASH tests under different aging levels of the two binders, it is found that the damage-healing performance of both neat and modified asphalt binders gradually decrease with the increasing aging levels. It is also observed that the healing performance of 70# neat asphalt is higher than that of SBS binder in pre-failure conditions, however, the healing behaviors of SBS binder is becoming obviously better than that of 70# binder after fatigue failure. Furthermore, a promising relationship is found between the macroscale healing properties of asphalt binders and their microscale chemical composition under various aging levels.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Oxidative Aging Effects on Damage-Healing Performance of Unmodified and Polymer Modified Asphalt Binders


    Contributors:
    Chen, Yifang (author) / Wang, Chao (author)


    Publication date :

    2019-08-30


    Size :

    9 pages





    Type of media :

    Article/Chapter (Book)


    Type of material :

    Electronic Resource


    Language :

    English




    Effect of Warm Mix Additives on the Properties of Unmodified and Polymer Modified Asphalt Binders

    Sukhija, Mayank / Saboo, Nikhil / Pani, Agnivesh | Springer Verlag | 2025


    Effect of Warm Mix Additives on the Properties of Unmodified and Polymer Modified Asphalt Binders

    Sukhija, Mayank / Saboo, Nikhil / Pani, Agnivesh | Springer Verlag | 2025


    Oxidative Aging of Asphalt Binders in Hot-Mix Asphalt Mixtures

    Morian, Nathan / Hajj, Elie Y. / Glover, Charles J. et al. | Transportation Research Record | 2011



    Investigation into the Oxidative Aging of Asphalt Binders

    Liang, Yanlong / Wu, Rongzong / Harvey, John T. et al. | Transportation Research Record | 2019