Nondestructive Evaluation and Assessment of Concrete Barriers for Defects and Corrosion

Wiss, Janney, Elstner Associates, Inc. (WJE) evaluated potential nondestructive evaluation (NDE) methodologies that may be effective in 1) identifying internal defects within slip formed concrete barriers and 2) assessing the corrosion condition of barrier dowel bars. The evaluation was requested by the Bridge Maintenance and Inspection Unit of the Iowa Department of Transportation (IaDOT) and the Bureau of Bridges and Structures of the Illinois Department of Transportation (IDOT). The need arose due to instances in each Department’s existing inventory of bridge barriers where internal voids and other defects associated with slip forming construction methods were attributed to poor barrier performance after completion of construction and where, in other barrier walls, unintentional exposure of the dowel bars revealed extensive corrosion-related section loss at previously uninspectable locations, reducing the capacity of the barriers to resist traffic impact loads. WJE trial tested potential NDE techniques on laboratory mock-up samples built with known defects, trial sections of cast-in-place barriers at in-service bridges in Iowa, and slip formed and cast-in-place barrier walls at in-service bridges in Illinois. The work included review of available studies performed by others, field trial testing to assess candidate test methods, verification of the test methods in identifying internal anomalies and dowel bar corrosion, and preparation of this report and nondestructive evaluation guidelines.

  • Record URL:
  • Corporate Authors:

    Wiss, Janney, Elstner Associates, Incorporated

    330 Pfingsten Road
    Northbrook, IL  United States  60062

    Iowa Department of Transportation

    Ames, IA  United States  50010

    Illinois Department of Transportation

    Springfield, IL  United States  62764

    Federal Highway Administration

    1200 New Jersey Avenue, SE
    Washington, DC  United States  20590
  • Authors:
    • McGormley, J C
    • Rende, N S
    • Krauss, P D
  • Publication Date: 2013-11-15


  • English

Media Info

  • Media Type: Digital/other
  • Edition: Final Report
  • Features: Figures; Photos; References; Tables;
  • Pagination: 131p

Subject/Index Terms

Filing Info

  • Accession Number: 01598402
  • Record Type: Publication
  • Report/Paper Numbers: BARR-010, 2006.5773, 2011.5553.2
  • Contract Numbers: 3330G
  • Created Date: Apr 28 2016 10:55AM