Prediction of Deformation Behaviors on Stress-Dependent Unbound Pavement Foundations

Abstract

There are several major practical consequences of the stress-dependent and deformational properties of unbound pavement foundations. Among those are the modulus and Poisson’s ratio’s that may change, the compressive stresses that are generated in such materials under load, the stiffening and strengthening effect of repeated loading to progressively increase the unbound pavement materials resistance to permanent deformation. The predictions of deformation on stress-dependent unbound pavement foundations are presented in this paper by finite element analyses and a combination of field observations of accelerated loading tests results.