Division of Engineering Research On-Call Services Task 7: Durability of Anchorage Pour-backs and Improvements

Details

• Alternative Title:
  Durability of Anchorage Pour-backs and Improvements Title from Cover
• Creators:
  Tatum, Garrett ; Brenkus, Natassia
• Corporate Creators:
  Ohio State University. Department of Civil and Environmental Engineering and Geodetic Science
• Corporate Contributors:
  Ohio. Department of Transportation. Office of Statewide Planning and Research ; United States. Department of Transportation. Federal Highway Administration
• Subject/TRT Terms:
  • Anchorages
  • Best practices
  • Bond strength (Materials)
  • Chloride content
  • Concrete
  • Corrosion
  • Durability
  • Grout
  • Posttensioning
  • Shrinkage
  More +
• Publication/ Report Number:
  FHWA/OH-2021-02
• Resource Type:
  Tech Report
• Geographical Coverage:
  United States
• Edition:
  Final Report
• Corporate Publisher:
  Ohio. Department of Transportation. Office of Statewide Planning and Research
• Abstract:
  Pour-back materials are integral to the corrosion protection of post-tensioning anchorages, where all prestressing force is delivered. Two common grout materials and surface preparation techniques were investigated to assess the quality of the bond between the pour-back and the primary concrete member with regards to susceptibility to chloride intrusion and shrinkage effects. Recommendations for pour-back best practices are given based on these findings.
• Format:
  PDF
• Funding:
  PID: 107444 SJN 135785 Task 7
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/59032/dot_59032_DS1.pdf
• File Type:
  [PDF - 5.80 MB]
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha256:8133a6c1d1cf32cdcc45fe73e3fee8b4b937554e47443e1952b01469364845ab