A laboratory investigation was conducted to capture the influence of confinement pressure and specimen air voids on the creep and recovery response of asphalt concrete (AC) mixtures. AC specimens were fabricated at 2% and 7% air voids and tested at three temperatures (20, 40 and 55°C) and at unconfined and confined conditions (100 and 200 kPa). A total of 20,000 repetitions of a repeated trapezoidal loading and recovery cycle were applied. The resulting creep curves showed four distinct patterns of the three-stage creep curve depending on the loading condition and specimen density. To quantify the mechanical response during the secondary stage where the response was found to be linear, linear viscoelastic modelling was carried out. Using creep time, energy stored and energy dissipated, which were determined from model parameters; the influence of air voids and confinement pressure was quantified.


    Zugriff

    Zugriff über TIB

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Influence of confinement pressure and air voids on the repeated creep and recovery of asphalt concrete mixtures




    Erscheinungsdatum :

    2016




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Print


    Sprache :

    Englisch



    Klassifikation :

    BKL:    56.24 / 56.24 Straßenbau



    Study on Dynamic Repeated Creep Tests for Viscoelastic Property of Asphalt Mixtures with Varying Air Voids Content

    Yin, Y.-M. / Zhang, X.-N. / American Society of Civil Engineers | British Library Conference Proceedings | 2010


    Modeling of Repeated Creep and Recovery Experiments in Asphalt Binders

    Reyes, Mauricio / Kazatchkov, Igor B. / Stastna, Jiri et al. | Transportation Research Record | 2009


    Modeling of Repeated Creep and Recovery Experiments in Asphalt Binders

    Pérez-Jiménez, Félix | Online Contents | 2009