Investigate the Use of In‐Place Lateral Pull Off Tests Determine the Compressive Strength of Structural Concrete

Current practice for determining the compressive strength of structural concrete consists of two methods. For newly placed concrete, test cylinders are prepared on‐site and then taken to determine compressive strength. For existing concrete, cores are taken from the in‐place concrete and then tested to evaluate the compressive strength. Both practices require testing at an off‐site facility. This requires the affected parties on the project site to wait for the samples to be delivered, tests performed, test data analyzed, and results returned to the project site. Analysis of existing structural concrete requires extraction of core samples from the structural element in question, introducing the need to patch and repair sample locations as well as the possibility of damaging the structural integrity. A quick, on‐site method with minimal repair is needed to determine the compressive strength of concrete. The Lateral Pull Off Test (LOF) for determining the compressive strength of in‐place concrete appears to be an accurate, non‐destructive, and reliable procedure. The objectives of this research are to: 1) Verify that data provided by LOF testing is consistent with those provided by current methods used to determine concrete compressive strength; 2) Validate LOF as a means of determining concrete compressive strength; and 3) Develop specifications to use LOF to assess concrete compressive strength.


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    • Status: Completed
    • Funding: $150000
    • Contract Numbers:

      SPR 17‐541

    • Sponsor Organizations:

      Kentucky Transportation Cabinet

      200 Mero Street
      Frankfort, KY  United States  40622
    • Managing Organizations:

      Kentucky Transportation Cabinet

      200 Mero Street
      Frankfort, KY  United States  40622
    • Performing Organizations:

      University of Kentucky, Lexington

      Kentucky Transportation Center
      College of Engineering, 176 Raymond Building
      Lexington, KY  United States  40506-0281
    • Principal Investigators:

      Sun, Charlie

    • Start Date: 20160501
    • Expected Completion Date: 20190630
    • Actual Completion Date: 0
    • USDOT Program: Transportation, Planning, Research, and Development
    • Subprogram: pavement maintenance
    • Subprogram: Research

    Subject/Index Terms

    Filing Info

    • Accession Number: 01675076
    • Record Type: Research project
    • Source Agency: University of Kentucky, Lexington
    • Contract Numbers: SPR 17‐541
    • Files: RIP, STATEDOT
    • Created Date: Jul 18 2018 9:35AM