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.
Micromechanics analysis of granular soils to estimate inherent anisotropy
KSCE Journal of Civil Engineering ; 11 , 3 ; 145-149
2007-05-01
5 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
Simple Methods to Estimate Inherent and Stress-Induced Anisotropy of Aggregate Base
Transportation Research Record | 2005
|Simple Methods to Estimate Inherent and Stress-Induced Anisotropy of Aggregate Base
Transportation Research Record | 2019
|Stranger than friction: Micromechanics of granular media
British Library Conference Proceedings | 2002
|Relating Failure Tests Performed in Hollow Cylinder Apparatus to Inherent Anisotropy
Transportation Research Record | 2019
|