Fatigue Performance Prediction of Asphalt Pavements with FlexPAVETM, the S-VECD Model, and DR Failure Criterion
Reliable predictions of asphalt materials and pavement performance are important elements in mixture design, mechanistic-empirical pavement design, and performance-related specifications. This paper presents FlexPAVE™, a pavement performance prediction program. FlexPAVE™ is a three-dimensional finite element program that is capable of moving load analysis under realistic climatic conditions. It utilizes the simplified viscoelastic continuum damage (S-VECD) model to predict asphalt pavement fatigue life. This S-VECD model currently incorporates the so-called GR failure criterion to define the failure of asphalt mixtures. In this study, a new failure criterion for the S-VECD model, designated as the DR criterion, has been developed to remedy some of the shortcomings of the GR failure criterion. This DR criterion has been implemented successfully in FlexPAVETM. In this paper, FlexPAVETM is used to simulate the fatigue performance of field test sections. These test sections include various pavement structures, such as perpetual pavements and accelerated load facility test pavements in the United States, South Korea, and China, as well as various materials, such as warm-mix asphalt, reclaimed asphalt pavement, and mixtures with modified binders. The DR-based FlexPAVETM predictions have yielded good agreement with the field measurements and show more reasonable trends compared to predictions obtained using the GR failure criterion.
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Availability:
- Find a library where document is available. Order URL: http://worldcat.org/issn/03611981
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Authors:
- Wang, Yizhuang David
- Keshavarzi, Behrooz
- Kim, Y. Richard
- Publication Date: 2018-12
Language
- English
Media Info
- Media Type: Digital/other
- Features: Figures; References;
- Pagination: pp 217-227
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Serial:
- Transportation Research Record: Journal of the Transportation Research Board
- Volume: 2672
- Issue Number: 40
- Publisher: Sage Publications, Incorporated
- ISSN: 0361-1981
- EISSN: 2169-4052
- Serial URL: http://journals.sagepub.com/home/trr
Subject/Index Terms
- TRT Terms: Asphalt pavements; Fatigue (Mechanics); Pavement performance; Test sections
- Identifier Terms: FlexPAVE (Computer program); S-VECD (Computer model)
- Uncontrolled Terms: Failure criterion
- Subject Areas: Highways; Pavements;
Filing Info
- Accession Number: 01656632
- Record Type: Publication
- Report/Paper Numbers: 18-05648
- Files: TRIS, TRB, ATRI
- Created Date: Jan 21 2018 5:53PM