District 3-0 Investigation of Fiber-Wrap Technology for Bridge Repair and Rehabilitation (Phase-I)

Concrete structures, and particularly concrete highway bridges are exposed over time to the deleterious effects of environmental attacks, leading to chemical degradation of the material due to carbonation and chloride contamination that eventually break the alkali barrier in the cement matrix, and the steel reinforcement in the concrete becomes susceptible to corrosion. As a consequence, the concrete may delaminate at the reinforcement level, leading to cracking and spalling of the concrete due to volume increase of the steel reinforcement. Such degradation is exacerbated by the application of deicing salts on highway bridges, and the freeze-thaw and dry-wet cyclic exposures causing accelerated aging of the structure over time. In the United States, over 30% of bridges are in need of repair or replacement because of concrete deterioration and consequential steel corrosion, and the percentage is increasing, according to the Federal Highway Administration. Over 200,000 bridges worth $78 billion are in critical need of repair. There is no question that Fiber-Reinforced Polymer or Plastic (FRP) composite materials have shown to be effective for repair and rehabilitation of civil infrastructure. This project was undertaken to extensively investigate and evaluate the technical and economical effectiveness of surface bonded FRP technology for concrete bridges in The Pennsylvania Department of Transportation's (PennDOT’s) District 3, which is in charge of maintaining approximately 2900 bridges over nine counties, with over 300 T-beam concrete bridges built during the early- mid-1900s which are in need of repair and retrofit. This study includes seven tasks, namely Task IA: Information Gathering, Task I-B: Analysis of Findings, Task I-C: Defining “Ideal” Candidate Bridge for Repair, Task I-D: Outcomes Measures, Task I-E: Draft Final Report and Oral Presentation, Task I-F: Implementation Strategy, and Task I-G: Final Report and Ideas Have Consequences. This report includes the tasks listed above.

• Record URL:
  https://rosap.ntl.bts.gov/view/dot/38126
• Corporate Authors:

  West Virginia University, Morgantown

  Department of Civil and Environmental Engineering
  Morgantown, WV  United States  26506-6103

  Pennsylvania Department of Transportation

  Bureau of Planning and Research
  400 North Street, 6th Floor
  Harrisburg, PA  United States  17120-0064
• Authors:
  • Davalos, Julio F
  • Barth, Karl E
  • Ray, Indrajit
  • Lin, Chunfu
  • Brayack, Daniel A
  • Matzzie, Don
  • Tysl, Stephan R
• Publication Date: 2006-2-10

Language

• English

Media Info

• Media Type: Digital/other
• Edition: Final Report
• Features: Appendices; Figures; Photos; Tables;
• Pagination: 271p

Subject/Index Terms

• TRT Terms: Aging (Materials); Bonding; Carbonation; Chlorides; Composite materials; Concrete bridges; Corrosion; Deicing chemicals; Deterioration; Economic benefits; Fiber reinforced plastics; Freeze thaw durability; Highway bridges; Laminates; Rehabilitation; Reinforcing steel; Repairing; Technology
• Uncontrolled Terms: Degradation (Materials); Wraps (Structural reinforcement)
• Geographic Terms: Pennsylvania
• Subject Areas: Economics; Highways; Maintenance and Preservation; I60: Maintenance;

Filing Info

• Accession Number: 01081205
• Record Type: Publication
• Files: NTL, TRIS, STATEDOT
• Created Date: Nov 26 2007 9:55AM