Asphalt mix design includes the determination of aggregate gradation, asphalt content and other volumetric properties, and the evaluation of mechanical properties and moisture damage potentials. In this paper, a computational method is developed to computer-aided mix design. Discrete element method is used to simulate the formation of skeleton and voids microstructures of asphalt concrete of different asphalt contents. This method takes the mechanical properties or performance of the mixture into consideration, such as inter-aggregate contacts and local stability. A simple visco-elastic model is applied to simulate the contacts between asphalt binder and aggregates. The surface texture of an aggregate particle can be taken into consideration in the inter-particle contact model. For a certain air void content, the mastics volume, binder volume or the asphalt content can be determined via a digital compression test. The asphalt content can also be determined using an alternative approach that is based on modelling the inter-particle contact with an asphalt binder layer.


    Zugriff

    Zugriff über TIB

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Computer-aided procedure for determination of asphalt content in asphalt mixture using discrete element method


    Beteiligte:


    Erscheinungsdatum :

    2017




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Print


    Sprache :

    Englisch



    Klassifikation :

    BKL:    56.24 Straßenbau / 56.24




    Approach for Determination of Maximum Reclaimed Asphalt Pavement Content in Polymer-Modified Asphalt Mixture

    Park, Bongsuk / Zou, Jian / Roque, Reynaldo et al. | Transportation Research Record | 2020


    Simulation of wheel tracking test for asphalt mixture using discrete element modelling

    Ma, Tao / Zhang, Deyu / Zhang, Yao et al. | British Library Online Contents | 2018


    Research on Designing Optimum Asphalt Content of Asphalt Mixture by Calculation and Experimental Method

    Liu, W.F. / Li, H.M. / Tian, B.P. | British Library Conference Proceedings | 2011


    Uniaxial Compressive Process Simulation of Geocell-Reinforced Asphalt Mixture by Discrete Element

    Xianrong, Wang / Shangyu, Han / Yunsheng, Zhu | Transportation Research Record | 2023