POSSIBILITIES OF A SEMI-CIRCULAR BENDING TEST

The possibilities of a Semi-Circular Bending (SCB) test on semi-cylindrical specimens is investigated as an alternative to the Indirect Tensile Test (ITT) to determine the flexural strength, stiffness and fatigue behaviour of asphalt concrete. Finite element analysis relations for the stresses and deformations under SCB have been derived. Based on these relations the tensile strength and fatigue behaviour of two asphalt mixes were determined with laboratory tests. These results have been compared with ITT results on the same mixes. It can be concluded that the SCB gives results comparable with ITT for the tensile strength. The determination of stiffness requires accurate measurement of the relatively small vertical deformations under loading. Fatigue tests can also be carried out. The SCB test can be used as a mix design test for performance related specifications and a reliable quality control test for mix production and road construction. A standard test set-up is proposed.

  • Supplemental Notes:
    • This conference was arranged by the International Society for Asphalt Pavements. The ninth conference will be held in Copenhagen, Denmark in August 2002.
  • Corporate Authors:

    University of Washington, Seattle

    Department of Civil and Environmental Engineering, P.O. Box 352700
    Seattle, WA  United States  98195-2700
  • Authors:
    • van de Ven, M
    • Smit, A de F
    • Krans, R L
  • Conference:
  • Publication Date: 1997

Language

  • English

Media Info

  • Features: Figures; References; Tables;
  • Pagination: p. 939-950

Subject/Index Terms

Filing Info

  • Accession Number: 00764702
  • Record Type: Publication
  • Report/Paper Numbers: Volume II
  • Files: TRIS, ATRI
  • Created Date: Jun 11 1999 12:00AM