Design Guidelines for Durability of Bonded CFRP Repair/Strengthening of Concrete Beams
Concrete beams can be repaired and strengthened with externally bonded carbon fiber reinforced polymer (CFRP) composite sheets or prefabricated CFRP laminates. The short-term behavior of these applications has been studied, and construction specifications for bonded repair were developed under NCHRP Project 10-59A. Nevertheless, research into their long-term performance is incomplete, and durability issues remain unanswered. Proper use of CFRP systems requires knowledge of their durability. The effect of mechanical and environmental loading on bonded CFRP systems may be significant. The development of design guidelines and material selection criteria that consider the effects of mechanical and environmental loads on durability will permit designers to repair or strengthen structures more effectively. The research may identify dominant factors that need to be monitored to evaluate the condition of CFRP applications. The results of this study may also be applicable to evaluation of the durability of existing installations. The objective of this project is to develop design guidelines and material selection criteria that consider the effects of mechanical and environmental loads on the durability of bonded CFRP repair and strengthening of concrete beams.
Language
- English
Project
- Status: Completed
- Funding: $500000.00
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Contract Numbers:
Project 12-73
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Sponsor Organizations:
Federal Highway Administration
1200 New Jersey Avenue, SE
Washington, DC United States 20590American Association of State Highway and Transportation Officials (AASHTO)
444 North Capitol Street, NW
Washington, DC United States 20001National Cooperative Highway Research Program
Transportation Research Board
500 Fifth Street, NW
Washington, DC United States 20001 -
Project Managers:
Hanna, Amir
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Performing Organizations:
University of Wyoming, Laramie
1000 E University Avenue, Department 3295
Laramie, WY United States 82071 -
Principal Investigators:
Dolan, Charles
- Start Date: 20050307
- Expected Completion Date: 0
- Actual Completion Date: 20080831
- Source Data: RiP Project 10568
Subject/Index Terms
- TRT Terms: Beams; Carbon fibers; Durability; Polymers; Reinforced concrete; Research projects; Strengthening (Maintenance)
- Identifier Terms: National Cooperative Highway Research Program
- Subject Areas: Bridges and other structures; Highways; Maintenance and Preservation; Research; I30: Materials;
Filing Info
- Accession Number: 01463076
- Record Type: Research project
- Source Agency: National Cooperative Highway Research Program
- Contract Numbers: Project 12-73
- Files: RiP, USDOT
- Created Date: Jan 3 2013 2:16PM