ON THE MODELING AND CHARACTERIZATION OF THE VISCOELASTOPLASTIC RESPONSE OF ASPHALT CONCRETE MIXTURES

The exhibited responses of different asphalt mixtures show: (1) marked dependency on temperature; (2) load frequency, as well as (3) significant dependency on load amplitude. In combination, this necessarily calls for incorporation of nonlinear viscoplastic components in their mathematical modeling. This has motivated all of theoretical and algorithmic developments presented in this paper. In particular, a multimechanism, viscoplastic model was used to capture the time dependent behavior of different types of asphalt concrete mixtures. The engineering properties necessary for developing predictive capability of field performance was extracted from dynamic modulus tests with different loading frequencies and compressive creep-with-recovery tests. A software code is being developed to enable the determination of the material parameters by minimizing the errors between the experimental test data and the predicted response. This task is facilitated by the use of mathematical optimization techniques to fully automate the procedure determining the "optimal" set of material parameters. Suggestions for constructing the master curve have been given in this paper using the viscoelastoplastic analysis.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/16762797
• Corporate Authors:

  University of Mississippi, University

  Center for Advanced Infrastructure Technology
  University, MS  United States  38677-1848
• Authors:
  • Saleeb, A
  • Liang, R Y
  • Al Qablan, H
  • Powers, D
• Publication Date: 2004-9

Language

• English

Media Info

• Features: Figures; References; Tables;
• Pagination: p. 14-26
• Serial:
  • International Journal of Pavements
  • Volume: 3
  • Issue Number: 3
  • Publisher: University of Mississippi, University
  • ISSN: 1676-2797

Subject/Index Terms

• TRT Terms: Asphalt concrete pavements; Asphalt mixtures; Cyclic strength; Optimization; Viscoelastic materials; Viscoplasticity
• Subject Areas: Highways; Materials; I32: Concrete;

Filing Info

• Accession Number: 00988186
• Record Type: Publication
• Files: TRIS, ATRI
• Created Date: Mar 17 2005 12:00AM