Structural Fiber Reinforcement to Reduce Deck Reinforcement and Improve Long-Term Performance

Repair of reinforced concrete bridge decks represents a large portion of bridge manager's budgets. A survey of 52 transportation agencies identified more than 100,000 bridges across the United States that have exhibited early age bridge deck cracking. Reducing the amount of cracking on bridge decks would likely lead to better infrastructure resilience and lower long term costs. While various reinforcing materials are available to reduce or eliminate corrosion, they are often considered near cost prohibitive (e.g., stainless steel) or difficult to procure (carbon fiber rebar) or come with significant design challenges (e.g., glass fiber rebar). Epoxy coated mild reinforcement is the steel corrosion protection of choice among many Departments of Transportation, however its performance is highly dependent on the initial condition of the coating which is historically easy to damage during the manufacture, transport and construction. Other coating options like galvanized reinforcement or stainless clad reinforcement are often seen as not worth the cost as evidenced by their relative lack of use. By combining SFRC with various types of reinforcement (black steel, stainless steel, GFRP rebar), the total amount of steel can be reduced, limiting the total amount of damaged caused to a bridge deck. Potentially, the entire top mat of reinforcement could be eliminated or even all discrete reinforcement and the SFRC will provide additional crack control.

Language

  • English

Project

  • Status: Active
  • Funding: $133000
  • Contract Numbers:

    69A3551747108

  • Sponsor Organizations:

    Office of the Assistant Secretary for Research and Technology

    University Transportation Centers Program
    Department of Transportation
    Washington, DC  United States  20590
  • Managing Organizations:

    Mountain-Plains Consortium

    North Dakota State University
    P.O. Box 6050, Department 2880
    Fargo, ND  United States  58108-6050
  • Project Managers:

    Kline, Robin

  • Performing Organizations:

    Utah State University

    Civil and Environmental Engineering Department
    Logan, UT  United States 
  • Principal Investigators:

    Maguire, Marc

  • Start Date: 20181019
  • Expected Completion Date: 20220731
  • Actual Completion Date: 0
  • USDOT Program: University Transportation Centers Program
  • Source Data: MPC-581

Subject/Index Terms

Filing Info

  • Accession Number: 01684716
  • Record Type: Research project
  • Source Agency: Mountain-Plains Consortium
  • Contract Numbers: 69A3551747108
  • Files: UTC, RiP
  • Created Date: Oct 26 2018 9:24AM