Synthesis of best practices for the placement of long and short patches for ride quality : technical report.

Details

• Creators:
  Dessouky, Samer ; Papagiannakis, A.T.
• Corporate Creators:
  University of Texas at San Antonio. Department of Civil and Environmental Engineering
• Corporate Contributors:
  United States. Federal Highway Administration
• Subject/TRT Terms:
  • Patching
  • Pavement maintenance
  • Asphalt mixtures
  • Best practices
  • Surface course (Pavements)
  • Ride quality
  • Service life Pavements--Maintenance and repair
  • Pavements--Overlays
  • Service life (Engineering)
  • Roads--Riding qualities
• Publication/ Report Number:
  FHWA/TX-13/0-6667-1
• Resource Type:
  Tech Report
• Geographical Coverage:
  Texas
• Corporate Publisher:
  Texas Department of Transportation. Research and Technology Implementation Office
• Abstract:
  Level-up patching is a common corrective maintenance activity in Texas performed by most districts. It involves laying down a thin asphalt mix layer over an existing pavement (rigid or flexible) in areas of sagging or rutting to improve the ride score, reduce pavement roughness, improve drainage, and restore cross-slope. Level-up patching is applied in areas of surface-related failures rather than areas with foundation (base/subgrade) problems. TxDOT uses level-up patching in most of the districts as a corrective pavement treatment. Total expenditures for patching/ overlaying costs are in the order of $180m annually. This report documents the best level-up practices for the benefit of the TxDOT districts. It provides them with guidelines on materials, equipment, and best practices for improving the quality of patching and extending its service life, which ultimately will produce significant cost savings statewide.
• Format:
  PDF
• Funding:
  Project 0-6667
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/25890/dot_25890_DS1.pdf
• File Type:
  [PDF - 3.82 MB]
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha-512:ae0f9322fe41260ab51c82a477cc6cccb6eb262ed5ccd5fb9cce6b8f82a40261e1689b363c79451cd621697508e5451f2d06919dc2a2a63d7f58546f797cf630