Abstract Current needs require the use of low environmental impact technologies in construction works. At the same time, the natural deterioration of roads makes maintenance and rehabilitation operations inevitable, with the consequent production and storage (or disposal) of huge quantities of Reclaimed Asphalt Pavement (RAP). Extensive research has thus been conducted and is still ongoing to maximize RAP recycling, trying to minimize the issues related to production and in-service properties, in particular in cold climates. This paper evaluates the feasibility of using large amounts of RAP in asphalt mixtures subjected to cold temperatures. With this aim, mixes were analyzed with different RAP contents (50% and 70%) and prepared with or without the addition of rejuvenator (two types of rejuvenators were selected). A traditional control mixture was also produced for comparison purposes. Dry and wet indirect tensile strength as well as stiffness and resistance to repeated loading properties at low and mid-service temperatures were assessed. Overall, the results showed a similar efficacy of the two rejuvenators in guaranteeing satisfactory mixture performance at low temperatures.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Effectiveness of Rejuvenators for Asphalt Mixtures with High Reclaimed Asphalt Pavement Content in Cold Climates


    Beteiligte:


    Erscheinungsdatum :

    2019-08-30


    Format / Umfang :

    11 pages





    Medientyp :

    Aufsatz/Kapitel (Buch)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch




    Wearing Course Mixtures Prepared with High Reclaimed Asphalt Pavement Content Modified by Rejuvenators

    Büchler, Stephan / Falchetto, Augusto Cannone / Walther, Axel et al. | Transportation Research Record | 2018


    Using Polymer Modification and Rejuvenators to Improve the Performance of High Reclaimed Asphalt Pavement Mixtures

    Mogawer, Walaa S. / Austerman, Alexander J. / Kluttz, Robert et al. | Transportation Research Record | 2016


    Asphalt Pavements with High Reclaimed Asphalt Pavement Content

    Aurangzeb, Qazi / Al-Qadi, Imad L. | Transportation Research Record | 2014


    Mitigation Strategy Selection for Asphalt Mixtures with High Reclaimed Asphalt Pavement Content

    Leavitt, Aaron / Martin, Amy Epps / Arámbula-Mercado, Edith | Transportation Research Record | 2023


    Performance of Hot and Cold Recycled Mixtures with High Reclaimed Asphalt Pavement Content

    Arámbula-Mercado, Edith / Chavarro-Muñoz, Santiago J. / Hu, Sheng et al. | Transportation Research Record | 2020