Nondestructive Testing to Identify Delaminations between HMA Layers

One of the more serious problems that can occur in hot-mix asphalt (HMA) pavements is delaminations between HMA layers. Several instances have been documented where pavements with delamination problems have experienced significant early damage. The presence of undetected delaminations and/or discontinuities in asphalt pavements also provides paths for moisture damage and development of other distresses including stripping, slippage cracks, pavement deformation, and reduction in pavement strength. Delaminations are also key contributors to top-down cracking of HMA pavements. A rapid nondestructive test method is needed to determine the existence, extent, and depth of delaminations and/or discontinuities in asphalt pavements so that the appropriate rehabilitation strategy can be determined. The main objective of this study is to identify and develop nondestructive testing (NDT) techniques that are capable of identifying and determining the extent and depth of delaminations and discontinuities in HMA pavements. To achieve this objective the researchers shall determine key indicators that may be used to identify potential areas of delamination including lack of bond, stripping, and other causes. The NDT techniques developed under this project should provide rapid results with near 100% continuous coverage of the pavement area.


  • English


  • Status: Completed
  • Contract Numbers:

    Project R06(D)

  • Sponsor Organizations:

    Strategic Highway Research Program 2

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

    Starnes, Monica

  • Performing Organizations:

    Auburn University

    Auburn, AL  United States  36830
  • Principal Investigators:

    Heitzman, Michael

  • Start Date: 20090220
  • Expected Completion Date: 0
  • Actual Completion Date: 20130831
  • Source Data: RiP Project 18491

Subject/Index Terms

Filing Info

  • Accession Number: 01464412
  • Record Type: Research project
  • Source Agency: Transportation Research Board
  • Contract Numbers: Project R06(D)
  • Files: TRB, RiP
  • Created Date: Jan 3 2013 2:42PM