Full-depth reclamation : new test procedures and recommended updates to specifications.

Details

• Creators:
  Scullion, Tom ; Sebesta, Stephen ; Estakhri, Cindy ; Harris, Pat ; Shon, Chang-Seon ; Harvey, Omar ; Rose-Harvey, Keisha
• Corporate Creators:
  Texas Transportation Institute
• Corporate Contributors:
  Texas. Dept. of Transportation. Research and Technology Implementation Office ; United States. Federal Highway Administration
• Subject/TRT Terms:
  • Full-depth reclamation
  • Pavement maintenance
  • Recycling
  • Waste management
  • Ground penetrating radar
  • Radar
  • Full depth reclamation
  • Full depth recycling
  • FDR
  • Ground penetrating radar
  More +
• Publication/ Report Number:
  FHWA/TX-11/0-6271-2
• Resource Type:
  Tech Report
• Geographical Coverage:
  Texas
• Edition:
  Technical report; Sept. 2010¿Mar. 2011.
• Corporate Publisher:
  Texas Transportation Institute
• Abstract:
  Rehabilitating an old pavement by pulverizing and stabilizing the existing pavement is a process referred to ; as Full Depth Reclamation (FDR). The stabilized layer becomes either the base or sub-base of the new ; pavement structure. This process has been used widely for over 20 years in Texas to strengthen and widen ; structurally inadequate pavement sections. This project developed guidelines on successful FDR practices, ; developed training materials, and identified areas where improvements to current practices are required. To ; improve the FDR process, this report includes the following enhancements: Current laboratory testing to select the optimal type and amount of stabilizer takes too long and ; requires too much material. Continue to run parallel testing with the small sample test protocols ; proposed in this report; Use the falling weight deflectometer (FWD) during construction to validate that the design ; assumptions are being met; Implement the proposed bond test to select the optimum prime material and amount needed to ; effectively bond the base to the surfacing materials; ; Modify the specifications to avoid working in freezing conditions; Consider implementing the other modifications to specifications proposed in this report.
  More +
• Format:
  PDF
• Funding:
  Project 0-6271
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/24698/dot_24698_DS1.pdf
• File Type:
  [PDF - 3.07 MB]
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha256:75dbff6d0772e7e3184496a8541711cffdb6f0acf2d6a11e15b72fea051631bf