Effects of Load and Temperature on Permanent Deformation Properties of HMA
Permanent deformation (rutting) is one of the major distresses in hot-mix asphalt (HMA) pavements. Load and temperature have important effects on the rutting characteristics of HMA. The present study evaluated the rut-resistance of HMA under different loads and temperatures through the Asphalt Pavement Analyzer (APA) and the Flat Rubber Wheeled Loaded Wheel Tester (FLWT). The mixtures selected in this study included Sup-25, Sup-19, Sup-13 and SMA-13 mixtures with different aggregates (limestone and basalt) and asphalt binders (conventional and modified asphalt binder). For Superpave 13-mm mixtures, three different asphalt contents were used to produce the specimens. The rut resistance properties of mixtures were tested under two APA load levels (445N load, 0.7MPa hose pressure and 890N load, 0.81MPa hose pressure) and temperatures (60 and 70°C) through APA and FLWT. The result from this study indicated that load and temperature have significant effect on the rutting characteristics of HMA, and the rut-resistance of HMA can be improved by mixture design.
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Availability:
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Corporate Authors:
American Society of Civil Engineers
1801 Alexander Bell Drive
Reston, VA United States 20191-4400 -
Authors:
- Chen, Xingwei
- Xu, Zhihong
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Conference:
- GeoHunan International Conference: Challenges and Recent Advances in Pavement Technologies and Transportation Geotechnics
- Location: Changsha Hunan, China
- Date: 2009-8-3 to 2009-8-6
- Publication Date: 2009
Language
- English
Media Info
- Media Type: Print
- Features: Figures; References; Tables;
- Pagination: pp 49-55
- Monograph Title: Road Pavement Material Characterization and Rehabilitation: Selected Papers From the 2009 GeoHunan International Conference
Subject/Index Terms
- TRT Terms: Asphalt pavements; Deformation; Hot mix asphalt; Load factor; Rutting; Temperature
- Subject Areas: Highways; Materials; Pavements; I31: Bituminous Binders and Materials;
Filing Info
- Accession Number: 01139924
- Record Type: Publication
- ISBN: 9780784410431
- Files: TRIS
- Created Date: Sep 18 2009 7:08AM