Lightweight Deflectometer (LWD) for Acceptance of Unbound Materials

There is a desire by Missouri Department of Transportation (MoDOT) to move away from the Nuclear Density Gage (NDG) as the primary device for evaluating compacted materials. MoDOT recently participated in a pooled fund project with Maryland DOT and the University of Maryland that studied this issue and produced draft standards for use of the Lightweight Deflectometer (LWD). This project will develop a procedure and standards for using a LWD for acceptance of unbound materials. It is intended to build on the findings from the pooled fund study to tailor the results for Missouri; not duplicate the previous work.


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    • Status: Active
    • Funding: $144,997
    • Sponsor Organizations:

      Missouri Department of Transportation

      1617 Missouri Boulevard
      P.O. Box 270
      Jefferson City, MO  United States  65102
    • Project Managers:

      Schulte, Brent

    • Performing Organizations:

      Missouri Center for Transportation Innovation

      Lafferre Hall
      416 S 6th St.
      Columbia, Missouri  United States  65201
    • Principal Investigators:

      Zhang, Xiong

    • Start Date: 20201001
    • Expected Completion Date: 20220831
    • Actual Completion Date: 0

    Subject/Index Terms

    Filing Info

    • Accession Number: 01769430
    • Record Type: Research project
    • Source Agency: Missouri Department of Transportation
    • Files: RIP, STATEDOT
    • Created Date: Apr 14 2021 9:21AM