PERMANENT DEFORMATION OF FLEXIBLE PAVEMENTS UNDER SIMULATED ROAD TRAFFIC CONDITIONS

In a circular laboratory test track the rutting of flexible pavements has been studied at various temperatures under well-controlled conditions. It has been found that temperature has a great influenge on the depth of rutting, the increase in rutting over a temperature range of 20-60 degrees C. being much larger than the increase in calculated elastic deformation. The permanent deformation per wheel passage correlates with the stiffness of the asphalt binder used and decreases with increasing number of wheel passages. An increase in thickness of the asphalt layer leads to a distinct reduction in subgrade deformation. The change in thickness through rutting is not larger for a 20-cm than for a 10-cm asphalt layer. Proper mix design proves to be an important factor in relation with permanent deformation. /AUTHOR/

  • Supplemental Notes:
    • Presented at the Third International Conference on the Structural Design of Asphalt Pavements, Grosvenor House, Park Lane, London, England, Sept. 11-15, 1972.
  • Corporate Authors:

    International Conf Struct Design Asph Pvmts (3rd)

    University of Michigan, Department of Civil Engineering
    Ann Arbor, MI  USA  48104

    International Conf Struct Design Asph Pvmts (3rd)

    University of Michigan, Department of Divil Engineering
    Ann Arbor, MI  USA  48104

    Interrational Conf Struct Design Asph Pvmts (3rd)

    University of Michigan, Department of Civil Engineering
    Ann Arbor, MI  USA  48104
  • Authors:
    • Hofstra, A
    • Klopm, AJG
  • Conference:
  • Publication Date: 1972-9

Media Info

  • Features: Figures; References; Tables;
  • Pagination: p. 613-621
  • Serial:
    • Volume: 1

Subject/Index Terms

Filing Info

  • Accession Number: 00261932
  • Record Type: Publication
  • Report/Paper Numbers: Proceeding
  • Files: TRIS
  • Created Date: Oct 22 1974 12:00AM