Bridge Pile Repair Using Underwater Fiber-Reinforced Polymer (FRP) Sleeve and Steel Reinforced Grout

This study explored the feasibility and acceptability of using stay in-place fiberglass reinforced plastic (FRP) jackets and underwater steel reinforced grout for timely bridge piling repairs in Minnesota without dewatering. One of the goals of the project was to determine the current state of practice to this corrosion repair and inspection by researching other projects using similar repairs and to develop a survey to other Departments of Transportation to gather their experience with this type of repair. Another goal was to document the entire repair process on bridge 9462. Two different products, Five Star PileForm F Jacket and Grout System and Denso SeaShield FX-70 and Grout System were installed, and contractor feedback was collected during the installation. This type of repair had a very limited impact to the surrounding area compared to a cofferdam type repair. In fact, the repair was practically invisible to the drivers on the bridge and boaters were able to pass under the bridge while repairs were taking place. The contractor preferred the Denso product due to the jacket being stiffer, which made the jacket want to shut, since visibility in the water was zero. The jacket’s seam was easier to line up. Both products had identical installation steps, and both seem to be a viable alternative to bridge pile repairs based on the performances from other projects found during the research.

• Record URL:
  • https://hdl.handle.net/20.500.14153/mndot.17744
• Supplemental Notes:
  • Contract 1045430 was active 01-25-2021 to 01-31-2022; contract 1049795 is active 05-06-2022 to 2-28-2023.

Language

• English

Project

• Status: Completed
• Funding: $99751
• Contract Numbers:

  1045430

  1049795

• Sponsor Organizations:

  Minnesota Department of Transportation

  395 John Ireland Boulevard
  St Paul, MN  United States  55155
• Performing Organizations:

  AECOM Technical Services, Inc.

  Minneapolis,   United States 
• Principal Investigators:

  Schilling, W

• Start Date: 20210125
• Expected Completion Date: 20240229
• Actual Completion Date: 20250210

Subject/Index Terms

• TRT Terms: Bridge piers; Fiber reinforced polymers; Grout; Repairing
• Geographic Terms: Minnesota
• Subject Areas: Bridges and other structures; Highways; Maintenance and Preservation;

Filing Info

• Accession Number: 01762699
• Record Type: Research project
• Source Agency: Minnesota Department of Transportation
• Contract Numbers: 1045430, 1049795
• Files: RIP, STATEDOT
• Created Date: Jan 26 2021 11:54AM