Evaluation of a flexible pavement structure in an accelerated pavement test

Th Saevarsdottir*, S. Erlingsson

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

3 Citations (Scopus)

Abstract

A flexible test road structure was built and tested in an Accelerated Pavement Test (APT) using a Heavy Vehicle Simulator (HVS) to investigate the performance behavior for validation in a mechanistic performance design. The structure was instrumented to measure the responses at different locations due to different wheel loadings and various tire pressures, with single and dual tires. The permanent deformation manifested on the surface as rutting was measured. The responses gained from various tire loads and pressures were analyzed using three approaches; all layers linear-elastic, the base nonlinear and base and subbase nonlinear. The measurements taken after 100,000 load repetitions were compared with the measurements taken in the beginning of the test. Some softening effect was noticed in the asphalt layers and was taken into account in the analysis. The observed accumulation of permanent deformation of the unbound layers was modeled using a three parameter model. Generally good agreement was established between the measured and calculated values.

Original languageEnglish
Title of host publicationAdvances in Pavement Design Through Full-Scale Accelerated Pavement Testing - Proceedings of the 4th International Conference on Accelerated Pavement Testing
PublisherTaylor and Francis/ Balkema
Pages237-247
Number of pages11
ISBN (Print)9780415621380
DOIs
Publication statusPublished - 2012
Event4th International Conference on Accelerated Pavement Testing, APT 2012 - Davis, CA, United States
Duration: 19 Sept 201221 Sept 2012

Publication series

NameAdvances in Pavement Design Through Full-Scale Accelerated Pavement Testing - Proceedings of the 4th International Conference on Accelerated Pavement Testing

Conference

Conference4th International Conference on Accelerated Pavement Testing, APT 2012
Country/TerritoryUnited States
CityDavis, CA
Period19/09/1221/09/12

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