Developing Guidelines for Repairing Severe Edge Failures : Technical Report

This report presents various edge failures, the methods used by districts to repair them, and the results of the repair. While there was no clear consensus on the best treatment of in-situ material for pavements with edge failures, the districts agreed that an up-front investigation should be conducted, samples should be obtained and tested, and widening the pavement contributes to a reduced risk of edge failure. Special treatments may be necessary when dealing with pavements that have no shoulders, steep front slopes, and/or subgrade soils of high plasticity. Researchers found that geogrid reinforcement is beneficial to reducing longitudinal edge cracking, but will not totally eliminate edge cracking problems. Scarifying and reshaping the existing material with stabilization, combined with a flexible base overlay has shown good performance. Without a uniform cross section, simply widening the pavement can result in cracking problems at the longitudinal construction joint. This report also provides guidelines for repairing severe edge failures.

Language

  • English

Media Info

  • Media Type: Web
  • Pagination: 56p

Subject/Index Terms

Filing Info

  • Accession Number: 01526322
  • Record Type: Publication
  • Report/Paper Numbers: FHWA/TX-14/0-6271-2-1
  • Files: TRIS, ATRI, USDOT, STATEDOT
  • Created Date: May 7 2014 10:57AM