Prediction and Calibration of Pavement Fatigue Performance Using Two-Stage Weibull Approach

The objectives of this study are to (1) use as much information as possible from flexural beam fatigue tests so as to simulate the in-situ stiffness deterioration of asphalt concrete pavement by applying appropriate correction factors and (2) evaluate the possible factors, such as air-void content, fatigue damage accumulation mechanism, and wander pattern, that affect the correction factors. An integrated two-stage Weibull model was established to take into account both crack initiation and crack propagation of laboratory controlled-deformation flexural fatigue beam tests at various testing conditions and material properties. Correction factors which calibrate between the laboratory testing results and in-situ pavement performance were obtained by comparing the simulated stiffness deterioration curve with the in-situ stiffness deterioration utilizing accelerated pavement testing facilities-Heavy Vehicle Simulator (HVS) sponsored by the California Department of Transportation Accelerated Pavement Testing Program (CAL/APT). Deflection data from multi-depth deflectometer (MDD) was used to back-calculate the stiffness deterioration of asphalt concrete based on the Odemark-Boussinesq method. In the two-stage Weibull simulation, an experimental design including two fatigue damage accumulation mechanisms (“repetition-hardening” and “stiffness-ratiohardening”), two air-void content patterns (“exponential decreased” and “constant”), and three wander patterns (“uniform”, “normal”, and “no-wander”) was evaluated and compared. Results indicate that the two-stage Weibull approach is quite promising in fatigue pavement performance prediction and can be utilized toward more complicated in-situ applications.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/oclc/70700638
• Authors:
  • Tsai, Bor-Wen
  • Bejarano, M O
  • Harvey, J T
  • Monismith, C L
• Conference:
  • 2005 Journal of the Association of Asphalt Paving Technologists: From the Proceedings of the Technical Sessions
  • Location: Long Beach CA, United States
  • Date: 2005-3-7 to 2005-3-9
• Publication Date: 2005

Language

• English

Media Info

• Media Type: Print
• Features: CD-ROM; Figures; References; Tables;
• Pagination: pp 697-732
• Serial:
  • Journal of the Association of Asphalt Paving Technologists
  • Volume: 74
  • Publisher: Association of Asphalt Paving Technologists (AAPT)
  • ISSN: 0270-2932
  • Serial URL: https://www.asphalttechnology.org/site_page.cfm?pk_association_webpage_menu=9169&pk_association_webpage=19109

Subject/Index Terms

• TRT Terms: Air voids; Asphalt concrete; Asphalt concrete pavements; Asphalt mixtures; Calibration; Cracking; Deflection; Deflectometers; Deterioration; Fatigue tests; Field tests; Heavy vehicles; Pavement performance; Stiffness; Weibull distributions
• Uncontrolled Terms: Correction (Mathematics); Fatigue damage; Flexural fatigue; Wander pattern
• Subject Areas: Design; Highways; Materials; Pavements; I22: Design of Pavements, Railways and Guideways; I23: Properties of Road Surfaces; I31: Bituminous Binders and Materials;

Filing Info

• Accession Number: 01020739
• Record Type: Publication
• Files: TRIS, ATRI
• Created Date: Mar 27 2006 11:07AM