Relating Full-Scale Pavement Rutting to Laboratory Permanent Deformation Testing

The study concerns the full-scale testing of a low-volume road pavement using the heavy vehicle simulator (HVS-Nordic) and the complementary testing of the same materials in the laboratory, especially using a repeated load triaxial test. The objective of the study was to develop an analytical method of calculating the permanent deformations on the basis of the stresses calculated by a finite element program, using input data obtained from laboratory assessments. It was found that the growth of permanent deformation as a function of load repetitions can be estimated using Sweere's Formula, but that an allowance for the stress state needs to be made. This was achieved by allowing a stress dependency in Sweere's parameter b, as a function of the failure ratio q/q and subscript f. It is shown that this can be estimated with a simple linear function according to the HVS and laboratory results. The resilient moduli needed for the finite element calculations were back-calculated from in situ loading tests. Both resilient and permanent deformations proved to be bigger in the HVS tests than those suggested from the laboratory tests.

• Record URL:
  http://www.informaworld.com/10.1080/10298430600783509
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/oclc/44544515
• Supplemental Notes:
  • Abstract reprinted with permission from Taylor and Francis
• Authors:
  • Korkiala-Tanttu, L
  • Dawson, Andrew
• Publication Date: 2007

Language

• English

Media Info

• Media Type: Print
• Features: Figures; Illustrations; Photos; References; Tables;
• Pagination: pp 19-28
• Serial:
  • International Journal of Pavement Engineering
  • Volume: 8
  • Issue Number: 1
  • Publisher: Taylor & Francis
  • ISSN: 1029-8436
  • Serial URL: http://www.tandf.co.uk/journals/titles/10298436.html

Subject/Index Terms

• TRT Terms: Accelerated tests; Cyclic tests; Deformation; Field tests; Finite element method; Heavy vehicles; Laboratory tests; Low volume roads; Mathematical methods; Pavements; Prototype tests; Repeated loads; Rutting; Stresses; Testing; Triaxial shear tests
• Subject Areas: Design; Highways; Pavements; I22: Design of Pavements, Railways and Guideways;

Filing Info

• Accession Number: 01049963
• Record Type: Publication
• Files: TRIS
• Created Date: Apr 20 2007 10:41AM