Print Email Facebook Twitter The Influence of Air Void Content on Moisture Damage Susceptibility of Asphalt Mixtures: A Computational Study Title The Influence of Air Void Content on Moisture Damage Susceptibility of Asphalt Mixtures: A Computational Study Author Varveri, A. Avgerinopoulos, S. Kasbergen, C. Scarpas, T. Collop, A. Faculty Civil Engineering and Geosciences Department Structural Engineering Date 2014-03-01 Abstract Because of the difficulties associated with the generation of finite element meshes based on X-ray computed tomography scans and with the extraordinary computational demands in performing three-dimensional (3-D) finite element analyses, past modeling efforts have focused primarily on two-dimensional representations of asphalt mixtures and have placed no emphasis on the inclusion of the air voids network in the body of an asphalt concrete specimen. A 3-D micromechanical moisture damage model has been developed and implemented in the finite element system CAPA-3D capable of addressing individually the three main phases of asphalt concrete: aggregate, mastic, and air voids. The 3-D finite element meshes of different types of asphalt mixtures were generated on the basis of X-ray scans. By means of CAPA-3D, the significance of the air voids structure in the development of moisture damage in asphalt concrete specimens was demonstrated. Availability of the model enables evaluation and ranking of the contribution of the characteristics of the individual mixture components to the overall mixture moisture resistance. To reference this document use: http://resolver.tudelft.nl/uuid:cccbeb5c-9c83-4cc7-a0ff-66d24faa452f Publisher National Academy of Sciences ISSN 0361-1981 Source Transportation Research Record: Journal of the Transportation Research Board, 2446, 2015; Authors version (post print) Other version https://doi.org/10.3141/2446-02 Part of collection Institutional Repository Document type journal article Rights (c) 2014 National Academy of Sciences Files PDF 315511.pdf 1.52 MB Close viewer /islandora/object/uuid%3Acccbeb5c-9c83-4cc7-a0ff-66d24faa452f/datastream/OBJ/view