Developing a Surrogate Test for Fatigue of Asphalt Binders
Fatigue testing of asphalt materials has been used to characterize traffic induced damage accumulation process in asphalt pavement resulting in development of cracks that are observable on pavement surface. A major challenge in current asphalt fatigue testing method is the significant amount of time required. Over the years, different approaches have been proposed as surrogate test for asphalt mixture. Instead of asphalt mixture, this study propose a surrogate test for asphalt binder considering it is more simple to do in terms of needed equipment and sample preparation. In this study, stress sweep test is proposed. By utilizing the rapid damage accumulation by increasing the applied stress magnitude from one cycle to the next, one can obtain similar information to that of fatigue testing. A comparison with field performance data from FHWA ALF study is used to check findings based on laboratory test results. Stress sweep test is found to be a promising test as shown with strong correlation with time sweep test result and similar ranking with ALF results.
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Corporate Authors:
500 Fifth Street, NW
Washington, DC United States 20001 -
Authors:
- Martono, Wilfung
- Bahia, Hussain U
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Conference:
- Transportation Research Board 87th Annual Meeting
- Location: Washington DC, United States
- Date: 2008-1-13 to 2008-1-17
- Date: 2008
Language
- English
Media Info
- Media Type: DVD
- Features: Figures; References; Tables;
- Pagination: 17p
- Monograph Title: TRB 87th Annual Meeting Compendium of Papers DVD
Subject/Index Terms
- TRT Terms: Asphalt mixtures; Binders; Bituminous materials; Cracking; Failure; Field tests; Pavement distress; Pavement performance
- Uncontrolled Terms: Accelerated loading facilities; Surrogates
- Subject Areas: Highways; Materials; I31: Bituminous Binders and Materials;
Filing Info
- Accession Number: 01090145
- Record Type: Publication
- Report/Paper Numbers: 08-1356
- Files: TRIS, TRB
- Created Date: Mar 21 2008 8:13AM