Despite the detrimental effects of moisture damage in asphalt pavements, few macroscale models are capable of modeling this important phenomenon. Existing models have limitations in accounting for the irreversibility and time dependency of moisture-induced damage. This study presents a moisture damage model based on continuum damage mechanics. Adhesive and cohesive moisture damage phenomena are modeled independently; this procedure allows for the introduction of fundamental mechanical properties for each process and for modeling the transition between adhesive and cohesive damage. Two- and three-dimensional simulations are performed, and the results of the simulations are presented to demonstrate the applicability and utility of these micromechanical computational models. It is shown that the proposed moisture damage model can simulate the effect of moisture damage on the mechanical response of asphalt concrete subjected to different loading conditions. The model also provides useful insight into the effect of mixture design and material properties on resistance to moisture damage.


    Access

    Download

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Continuum Coupled Moisture–Mechanical Damage Model for Asphalt Concrete


    Additional title:

    Transportation Research Record


    Contributors:


    Publication date :

    2013-01-01




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English




    Moisture damage in asphalt concrete

    Hicks, R. Gary. | TIBKAT | 1991


    Modelling moisture-mechanical damage in asphalt mixtures using random microstructures and a continuum damage formulation

    Castillo, Daniel / Caro, Silvia / Darabi, Masoud et al. | British Library Online Contents | 2017


    Development of Probabilistic Viscoelastic Continuum Damage Model for Asphalt Concrete

    Kassem, Hussein / Chehab, Ghassan / Najjar, Shadi | Transportation Research Record | 2019


    Continuum damage finite element modeling of asphalt concrete

    Mun, Sungho / Guddati, Murthy N. / Kim, Y. Richard | Springer Verlag | 2005