VISCOELASTIC ANALYSIS OF HOT MIX ASPHALT PAVEMENT STRUCTURES
A new method of analysis for mechanistic pavement design has been developed based on improved material characteristics, which more accurately reflects fatigue cracking and permanent deformation performance. The key components of the method involve the (a) dissipated energy "fatigue criterion" in which the cumulative energy dissipated in asphaltic materials is directly proportional to fatigue damage, (b) viscoelastic materials characterization, and (c) pavement analysis using the finite-element method for determining response to repeated wheel loading. The changing properties of asphaltic materials with temperature are a key feature of the procedure with temperature conditions being provided by using a heat flow model. Output of the program includes predictions of percentage fatigue damage and rut depth at various numbers of load applications.
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Availability:
- Find a library where document is available. Order URL: http://worldcat.org/issn/03611981
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Supplemental Notes:
- This paper appears in Transportation Research Record No. 1482, Pavement Design and Analysis. Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Copyright © National Academy of Sciences. All rights reserved
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Authors:
- Rowe, G M
- BROWN, S F
- Sharrock, M J
- Bouldin, M G
- Publication Date: 1995
Language
- English
Media Info
- Features: Figures; References;
- Pagination: p. 44-51
- Monograph Title: Pavement design and analysis
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Serial:
- Transportation Research Record
- Issue Number: 1482
- Publisher: Transportation Research Board
- ISSN: 0361-1981
Subject/Index Terms
- TRT Terms: Accelerated tests; Asphalt pavements; Cracking; Deformation; Design; Fatigue (Mechanics); Finite element method; Forecasting; Hot mix asphalt; Mechanical analysis; Mechanistic design; Repeated loads; Rutting; Temperature; Viscoelasticity
- Uncontrolled Terms: Rut depth
- Subject Areas: Design; Highways; Pavements; I22: Design of Pavements, Railways and Guideways; I23: Properties of Road Surfaces;
Filing Info
- Accession Number: 00713502
- Record Type: Publication
- Files: TRIS, TRB, ATRI
- Created Date: Nov 7 1995 12:00AM