Investigating the Long-Term Durability of CFRP Repairs for Bridges Under Environmental Conditions (4.16)

Carbon fiber-reinforced polymers (CFRP) have been widely used for bridge repair and strengthening because of their high strength-to-weight ratio, corrosion resistance, and ease of installation. However, the long-term durability of CFRP repairs under harsh environmental conditions remains unclear. Accumulated damage resulting from mechanical loading and environmental degradation, such as moisture, freezing, and thermal aging, may cause unpredictable damage to the infrastructure. To address this issue, this project aims to investigate the combined effects of fatigue and environmental aging on the durability of CFRP. The project employs a range of theoretical and computational methods to explore the impact of these factors on the mechanical properties of CFRP repairs. These methods multi-scale modeling of environmentally and mechanically conditioned samples to simulate the effects of moisture and temperature changes. The project results are expected to provide valuable insights into the long- term durability of CFRP repairs, which can help ensure the safety and reliability of bridges that have been repaired with CFRP. The project outcomes may have practical implications for bridge design and maintenance as well as for the wider adoption of CFRP as a repair and strengthening material in civil infrastructure.

Language

• English

Project

• Status: Active
• Funding: $64843
• Contract Numbers:

  69A3551847101

• Sponsor Organizations:

  Transportation Infrastructure Durability Center

  University of Maine
  Orono, ME  United States  04469

  Office of the Assistant Secretary for Research and Technology

  University Transportation Centers Program
  Department of Transportation
  Washington, DC  United States  20590

  University of Connecticut, Storrs

  Connecticut Transportation Institute
  270 Middle Turnpike, Unit 5202
  Storrs, CT  United States  06269-5202
• Managing Organizations:

  Transportation Infrastructure Durability Center

  University of Maine
  Orono, ME  United States  04469

  Office of the Assistant Secretary for Research and Technology

  University Transportation Centers Program
  Department of Transportation
  Washington, DC  United States  20590

  University of Connecticut, Storrs

  Connecticut Transportation Institute
  270 Middle Turnpike, Unit 5202
  Storrs, CT  United States  06269-5202
• Project Managers:

  Dunn, Denise

• Performing Organizations:

  Transportation Infrastructure Durability Center

  University of Maine
  Orono, ME  United States  04469

  University of Connecticut, Storrs

  Connecticut Transportation Institute
  270 Middle Turnpike, Unit 5202
  Storrs, CT  United States  06269-5202
• Principal Investigators:

  Morovati, Vahid

  Malla, Ramesh

• Start Date: 20240301
• Expected Completion Date: 20250815
• Actual Completion Date: 0
• USDOT Program: University Transportation Centers Program

Subject/Index Terms

• TRT Terms: Aging (Materials); Bridges; Durability; Fatigue (Mechanics); Fiber reinforced polymers; Repairing
• Subject Areas: Bridges and other structures; Highways; Maintenance and Preservation; Materials;

Filing Info

• Accession Number: 01917952
• Record Type: Research project
• Source Agency: Transportation Infrastructure Durability Center
• Contract Numbers: 69A3551847101
• Files: UTC, RIP
• Created Date: May 9 2024 1:59PM