The results of several pavement studies and road tests have been compared to determine the significance and interaction of design variables with respect to distress. The design variables studied are pavement reinforcement, thickness, joint spacing, and subgrade material. The distress modes studied are faulting, transverse cracking, and pumping. To compare faulting between pavement designs with different joint spacings, researchers developed a method for estimating serviceability from faulting and joint spacing data. This method is based on amplitude-wavelength relationships to serviceability that were estabilished in Texas. An extension of this method allows comparisons of reinforced and unreinforced concrete pavements that consider both cracks and joints in concrete pavements to be "faulting opportunities." The expected faulting per length of pavement for various designs is then computed by using the number of joints and cracks and the probability of faulting for each type of joint or crack. Load transfer is used as a criterion for estimating the probability of faulting. A method for considering the relative cost of pavements per vehicle is presented that is based on expected faulting and effect of faulting on serviceability. This method is illustrated by an example problem. /Author/

Media Info

  • Media Type: Print
  • Features: Figures; References; Tables;
  • Pagination: pp 1-8
  • Monograph Title: Pavement design, evaluation and performance
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00155994
  • Record Type: Publication
  • ISBN: 0309220710
  • Files: TRIS, TRB
  • Created Date: Aug 15 2000 12:00AM