Assessing different loading configurations in accelerated pavement testing

The need for faster and more practical evaluation methods under closely simulated inservice conditions prompted several transportation agencies, including the Florida Department of Transportation (FDOT), to consider accelerated pavement testing (APT). APT is generally defined as a controlled application of a realistic wheel loading to a pavement system simulating long-term, in-service loading conditions. In order to obtain meaningful results, a realistic APT simulation of actual in-service loading is essential. Currently, uni-directional loading without any wheel wander is generally used, particularly for rut evaluation. Such a loading configuration is thought to be more efficient for accelerated pavement testing purposes. This may be true in terms of efficiency, but its effectiveness and appropriateness to simulate actual in-service truck loading still remain unclear. Consequently, the present study was conducted primarily to assess the different possible loading combinations for accelerated pavement testing using a Heavy Vehicle Simulator (HVS). The intent was to determine a more realistic APT simulation of actual in-service loading. This paper presents a description of the testing program, the data collection effort, and the subsequent analyses and findings.

Language

  • English

Media Info

  • Pagination: 20p
  • Monograph Title: Full scale accelerated pavement testing: a southern hemisphere and Asian perspective

Subject/Index Terms

Filing Info

  • Accession Number: 01389240
  • Record Type: Publication
  • Source Agency: ARRB
  • Files: ITRD, ATRI
  • Created Date: Aug 23 2012 3:16AM