A new structural design procedure has been developed for heavily trafficked plain-jointed concrete pavement. The objective of this design procedure is to provide a structure that gives zero-maintenance (i.e., very low structural maintenance performance over the designated design period. The overall design procedure includes both a serviceability-performance analysis and a fatigue-damage analysis; however, only the serviceability-performance analysis procedure is described here. The fatigue-damage analysis provides a direct evaluation of slab cracking, whereas the serviceability-performance analysis provides an overall evaluation of several distress types. Long-term performance data from 25 section of the original AASHO test road that have been under heavy mixed traffic on I-80 since 1962 were used to derive the new design equations. The new equations fit the long-term performance data much better than did the original AASHO equation that was based on only 2 years' data. Westergaard's edge-stress equation and a climatic factor were incorporated into the design equation to extend it to a large variety of conditions. Performance data from 12 additional heavily trafficked projects located in various climates were used to determine the climatic effects on performance. The new design procedure results in a pavement structure that is expected to provide zero-maintenance performance over the designated design period. /Author/

Media Info

  • Features: Figures; References; Tables;
  • Pagination: p. 1-8
  • Monograph Title: Analysis of pavement systems
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00193373
  • Record Type: Publication
  • Files: TRIS, TRB
  • Created Date: May 11 1979 12:00AM