Analysis of HMA Fatigue Data Using the Concepts of Reduced Loading Cycles and Endurance Limit

This paper presents two new concepts for inclusion in the continuum damage analysis of fatigue data on hot mix asphalt (HMA) mixtures. The first is the concept of reduced loading cycles. Reduced loading cycles can be used as a much simpler alternative to the continuum damage parameter S in developing damage functions for HMA mixtures. The second concept introduced is that of effective strain, which is, the applied strain minus the endurance limit strain. Using effective strain allows for better collapse of damage curves generated at different temperatures and strain levels compared to the traditional approach. Furthermore, the proposed testing and analysis provide a relatively rapid means for objectively determining the endurance limit of HMA mixtures. The proposed approach to the analysis of fatigue data has potential applications not only in the laboratory characterization of HMA, but also in pavement design and in the modeling of pavement performance.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/02702932
• Authors:
  • Christensen Jr, Donald W
  • Bonaquist, Ramon
• Conference:
  • Asphalt Paving Technology 2009
  • Location: Minneapolis MN, United States
  • Date: 2009-3-15 to 2009-3-18
• Publication Date: 2009

Language

• English

Media Info

• Media Type: Print
• Features: CD-ROM; Figures; References; Tables;
• Pagination: pp 377-416
• Serial:
  • Journal of the Association of Asphalt Paving Technologists
  • Volume: 78
  • 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: Asphalt mixtures; Durability tests; Fatigue (Mechanics); Hot mix asphalt; Load tests; Pavement design; Pavement performance; Structural analysis
• Subject Areas: Highways; Materials; I33: Other Materials used in Pavement Layers;

Filing Info

• Accession Number: 01158670
• Record Type: Publication
• Files: TRIS
• Created Date: Jun 11 2010 12:05PM