Effect of temperature on fatigue life of asphalt mixture
Fatigue failure of asphalt or other bound layers is one of the most fundamental flexible pavement deteriorations and results from induced strain from repetitive traffic movements. Extensive study has been undertaken by many researchers to estimate the fatigue life of pavement for Mechanistic-Empirical design procedure. However many practitioners report that the fatigue transfer function currently prescribed in the Austroads method does not fit with observed performance. Hence developing an appropriate model for asphalt behaviour is of great importance. For this reason in depth testing has been performed at Curtin University Geotechnical Lab using the 4 Point Bending Beam Test to compare the fatigue life of samples of a control asphalt mix at a range of temperatures and frequencies. This paper outlines the effect of temperature on fatigue performance of pavement. A methodology to develop a shift factor to convert the laboratory results to better replicate the field condition is proposed.
- Record URL:
-
-
Authors:
- Asadi, H
- Leek, C
- Nikraz, H
- Conference:
- Publication Date: 2013-9
Language
- English
Media Info
- Pagination: 7p
- Monograph Title: Delivering new age solutions: 15th AAPA International Flexible Pavements Conference, 22-25 September, Royal International Conference Centre, Brisbane
Subject/Index Terms
- TRT Terms: Bituminous materials; Fatigue (Mechanics); Laboratory tests; Pavement performance; Pavements; Temperature; Test procedures; Tests for suitability, service and quality
- Uncontrolled Terms: Materials technology (asphalt/bitumen/concrete)
- Geographic Terms: Australia
- ATRI Terms: Laboratory test; Material fatigue; Pavement performance; Pavement testing; Temperature
- ITRD Terms: 5579: Fatigue (mater)
- Subject Areas: Highways; Pavements; I31: Bituminous Binders and Materials;
Filing Info
- Accession Number: 01503276
- Record Type: Publication
- Source Agency: ARRB
- Files: ITRD, ATRI
- Created Date: Jan 6 2014 10:55AM