Predicting permanent deformation behaviour of unbound granular materials
- 30 July 2014
- journal article
- research article
- Published by Taylor & Francis Ltd in International Journal of Pavement Engineering
- Vol. 16 (7), 587-601
- https://doi.org/10.1080/10298436.2014.943209
Abstract
To reliably predict the permanent deformation behaviour of unbound granular materials (UGM) in a pavement structure, the material parameters of the constitutive models used in design should be evaluated using a multi-stage (MS) loading approach. This paper investigated the prediction of the accumulation of permanent strain in UGM using some current models, extended applying the time-hardening approach, based on MS repeated load triaxial tests (RLTTs). The material parameters of these models were optimised for five different UGM used in pavement construction using the MS RLTT data with a specific set of stress levels. With these models, the accumulations of permanent strain in the same materials for MS RLTTs with a different set of stress levels were predicted. Using this approach, three out of the four models performed very well, which may be further developed for field conditions for better prediction of rutting.This publication has 11 references indexed in Scilit:
- Evaluation of Permanent Deformation Characteristics of Unbound Granular Materials by Means of Multistage Repeated-Load Triaxial TestsTransportation Research Record: Journal of the Transportation Research Board, 2013
- Characterisation of permanent deformation behaviour of unbound granular materials under repeated triaxial loadingConstruction and Building Materials, 2012
- Application of Shakedown Theory in Characterizing Traditional and Recycled Pavement Base MaterialsJournal of Transportation Engineering, 2010
- Shakedown Analysis of Unbound Granular Materials using Accelerated Pavement Test Results from New Zealand's CAPTIF FacilityPublished by American Society of Civil Engineers (ASCE) ,2006
- Pavement Design Model for Unbound Granular MaterialsJournal of Transportation Engineering, 2004
- Permanent Deformation in Flexible PavementsJournal of Transportation Engineering, 2004
- Permanent Deformation Behavior of Granular Materials and the Shakedown ConceptTransportation Research Record: Journal of the Transportation Research Board, 2001
- Soil Behaviour and Critical State Soil MechanicsPublished by Cambridge University Press (CUP) ,1991
- Prediction of Permanent Deformation in Flexible Pavement MaterialsPublished by ASTM International ,1989
- Shakedown of Pavements Under Moving Surface LoadsJournal of Transportation Engineering, 1984