A new generation of ultraviolet (UV) light-activated, self-healing polymers was evaluated with the aim to enhance the elastic recovery of the binder and to increase its self-healing abilities. This study had three main objectives: (a) to develop an optimized synthesis procedure for producing light-activated self-healing polymers, (b) to examine the thermal stability of the prepared self-healing polymers, and (c) to evaluate the effect of self-healing polymers on the rheological properties of asphalt binder containing binder extracted from recycled asphalt shingles (RAS). Fourier transform infrared (FT-IR) spectroscopy analysis confirmed the successful synthesis of UV-activated polymers in the laboratory. In addition, thermogravimetric analysis showed that the materials produced achieved the required thermal stability at high temperature. Measuring the viscosity of different binder blends with and without RAS and with and without self-healing polymers revealed that the additive decreased the viscosity of the binder blends containing RAS, thereby providing blends with a better workability. Furthermore, rheological results showed that the rutting resistance of the binder blends containing RAS was improved by increasing the percentage of self-healing polymer. Results also showed improved rheological behaviors at low service temperature with 5% self-healing polymer and with exposure to UV light.


    Access

    Download

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Effects of Light-Activated Self-Healing Polymers on the Rheological Behaviors of Asphalt Binder Containing Recycled Asphalt Shingles


    Additional title:

    Transportation Research Record


    Contributors:


    Publication date :

    2018-05-05




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English



    Laboratory Performance of Asphalt Mixtures Containing Recycled Asphalt Shingles

    Cooper, Samuel B. / Mohammad, Louay N. / Elseifi, Mostafa A. | Transportation Research Record | 2014


    Performance Characterization of Asphalt Mixtures at High Asphalt Binder Replacement with Recycled Asphalt Shingles

    Ozer, Hasan / Al-Qadi, Imad L. / Kanaan, Ahmad I. et al. | Transportation Research Record | 2013



    Performance of Asphalt Rejuvenators in Hot-Mix Asphalt Containing Recycled Asphalt Shingles

    Aguirre, Max A. / Hassan, Marwa M. / Shirzad, Sharareh et al. | Transportation Research Record | 2017


    Testing of Fine Asphalt Mixtures to Quantify Effectiveness of Asphalt Binder Replacement Using Recycled Shingles

    Kanaan, Ahmad I. / Ozer, Hasan / Al-Qadi, Imad L. | Transportation Research Record | 2014