This paper investigates the effect of oxidative aging of asphalt binders on their material characteristics and fatigue fracture properties during controlled-strain, dynamic mechanical testing. Cylindrical sand asphalt samples were fabricated with an unaged and two aged binders at different levels of aging. Various dynamic mechanical tests (strain sweep, frequency sweep, and time sweep) were performed to estimate viscoelastic characteristics and fatigue behavior. Test results and mechanical analyses conclude that the oxidative aging clearly increased elastic characteristics and reduced stress relaxation capability of asphalt binders. Furthermore, the aging has impact on the changes of thermo-viscoelastic properties. Due to the increasing brittleness and less viscous damping ability, the aged mixtures approached fatigue failure faster than the unaged mixtures and did not show any significant microdamage healing effects. Dynamic mechanical testing results showed good agreements with surface energy measurements that are well-known indicators representing fracture and healing potential of asphalt binders.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Evaluation of the effect of aging on mechanical and fatigue properties of sand asphalt mixtures


    Weitere Titelangaben:

    KSCE J Civ Eng


    Beteiligte:
    Kim, Yong-Rak (Autor:in) / Lee, Hyun-Jong (Autor:in)

    Erschienen in:

    Erscheinungsdatum :

    2003-07-01


    Format / Umfang :

    10 pages




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch




    Fatigue Evaluation of Warm-Mix Asphalt Mixtures

    Haggag, Mohamed Monir / Mogawer, Walaa S. / Bonaquist, Ramon | Transportation Research Record | 2011


    Evaluating Aging of Asphalt Mixtures

    Bell, C. A. / Kliewer, J. E. / American Society of Civil Engineers et al. | British Library Conference Proceedings | 1995


    Sweep test protocol for fatigue evaluation of asphalt mixtures

    Isailović, Ivan / Wistuba, Michael P. | British Library Online Contents | 2019


    Fatigue and Rutting Evaluation of Laboratory-Produced Asphalt Mixtures Containing Reclaimed Asphalt Pavement

    Sabouri, Mohammedreza / Bennert, Thomas / Daniel, Jo Sias et al. | Transportation Research Record | 2015


    Fatigue Response of Asphalt-Aggregate Mixtures

    Tayebali, A. A. / Rowe, G. M. / Sousa, J. B. | British Library Online Contents | 1992