Abstract This paper presents micromechanics models to estimate resilient properties of unbound aggregate materials. Micromechanics models account for the effect of particle orientation and the ratio of the normal contact stiffness to shear contact stiffness among particles. The results demonstrate that aggregate orientation and shape influence the level of inherent anisotropy, which has a substantial effect on the pavement responses that impact pavement design. The micromechanics analysis predicted an inherent anisotropy (ratio of horizontal to vertical modulus) ranging from 1.0 to 0.4. The effect of this increased anisotropy on the performance of a pavement with an unbound aggregate base is substantial.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Micromechanics analysis of granular soils to estimate inherent anisotropy


    Contributors:

    Published in:

    Publication date :

    2007-05-01


    Size :

    5 pages




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English




    Simple Methods to Estimate Inherent and Stress-Induced Anisotropy of Aggregate Base

    Kim, Sung-Hee / Little, Dallas N. / Masad, Eyad | Transportation Research Record | 2019


    Simple Methods to Estimate Inherent and Stress-Induced Anisotropy of Aggregate Base

    Kim, Sung-Hee / Little, Dallas / Masad, Eyad | Transportation Research Record | 2005


    Stranger than friction: Micromechanics of granular media

    Tordesillas, A. / Walsh, S. / International Society for Terrain-Vehicle Systems | British Library Conference Proceedings | 2002


    Relating Failure Tests Performed in Hollow Cylinder Apparatus to Inherent Anisotropy

    Richardson, Ian Reginald / Chapman, David Neil / Brown, Stephen | Transportation Research Record | 2019


    Relating Failure Tests Performed in Hollow Cylinder Apparatus to Inherent Anisotropy

    Richardson, Ian / Chapman, David / Brown, Stephen | Transportation Research Record | 1996