Nondestructive Testing to Identify Concrete Bridge Deck Deterioration

Highway agencies need to evaluate bridge deck condition in order to optimize the effective timing of preventive maintenance, prioritize bridge deck repair and rehabilitation, determine the scope of the required repairs, and make repair/replace decisions. Timing and repair strategies based on nondestructive testing (NDT) results to classify deck condition provide the potential for significant operational improvements. The problem is that deck deterioration frequently takes place below the surface, and cannot be readily evaluated by visual means. Most older decks now have asphalt concrete (AC) or Portland cement concrete (PCC) overlays, making subsurface deterioration conditions even more difficult to detect. Traditional deck inspection methods, such as chain drag, half-cell potentials, and chloride content are slow, require closures, and are not necessarily effective. Over the past 10 years new higher speed technologies such as ground penetrating radar (GPR), infrared thermography, and scanning impact-echo have been developed and implemented to some extent by highway agencies to meet their needs for bridge deck condition assessment. These technologies, however, have not been widely adapted or accepted. Agencies are not fully aware of the capabilities and limitations of these methods, or how they should best be used. Some have had less than positive experiences, possibly due to unrealistic expectations and improper use. <div style="MARGIN: 0in 0in 0pt"><font face="Times New Roman" size="3"></font></div>

Language

  • English

Project

  • Status: Completed
  • Funding: $750000.00
  • Contract Numbers:

    Project R06(A)

  • Sponsor Organizations:

    Strategic Highway Research Program 2

    Transportation Research Board
    500 Fifth Street, NW
    Washington, DC    20001
  • Project Managers:

    Starnes, Monica

  • Performing Organizations:

    Center for Advanced Infrastructure and Transportation

    Rutgers University
    100 Brett Rd
    Piscataway, NJ  United States  08854-8058
  • Principal Investigators:

    Gucunski, Nenad

  • Start Date: 20090313
  • Expected Completion Date: 0
  • Actual Completion Date: 20110913
  • Source Data: RiP Project 18486

Subject/Index Terms

Filing Info

  • Accession Number: 01462541
  • Record Type: Research project
  • Source Agency: Transportation Research Board
  • Contract Numbers: Project R06(A)
  • Files: TRB, RiP
  • Created Date: Jan 3 2013 2:05PM