Real-time monitoring of concrete strength to determine optimal traffic opening time

The aim of this project is to develop a reliable in-situ sensing method to evaluate the concrete properties for determining optimal traffic opening time of patching job or new construction with fly ash or other supplementary cementitious materials. This goal will be achieved by using piezoelectric sensors coupled with electromechanical impedance (EMI) analyzers to determine the very early age properties of concrete (i.e. Stiffness, setting time, hydration, etc.). This novel method will address the deficiency of current testing methods for determining traffic opening, for instance extensive calibration of maturity test and inefficiency of flexural strength test. The impact of this study can be revolutionary as it does not require any conventional mechanical testing and expensive and heavy test setups in the field. It only requires commercially available piezoelectric sensors (~$10 per sensor) and a portable EMI analyzer for data analysis and interpretation. There is no need for calibration for each different mix design. The associated benefits of using this novel non-destructive sensing method include (1) determining optimal traffic opening time based on reliable data of concrete properties; (2) reducing pre-mature failure of concrete pavement, bridge deck, patching, and other concrete structures; (3) enabling significant cost and schedule savings in construction projects due to reduced testing samples and testing time; and (4) reducing construction worker safety issues and jobsite accident rates in construction zones.

Language

  • English

Project

  • Status: Programmed
  • Funding: $300000
  • Contract Numbers:

    TPF-5(471)

  • Sponsor Organizations:

    Tennessee Department of Transportation

    James K. Polk Building
    Fifth and Deaderick Street
    Nashville, TN  United States  37243-0349

    Colorado Department of Transportation

    4201 East Arkansas Avenue
    Denver, CO  United States  80222

    Missouri Department of Transportation

    1617 Missouri Blvd.
    P.O. Box 270
    Jefferson City, MO  United States  65102

    Texas Department of Transportation

    125 E. 11th Street
    Austin, TX  United States  78701-2483

    Indiana Department of Transportation

    1101 State Office Building
    Indianapolis, IN  United States  46204
  • Project Managers:

    Nantung, Tommy

  • Start Date: 20210302
  • Expected Completion Date: 0
  • Actual Completion Date: 0

Subject/Index Terms

Filing Info

  • Accession Number: 01762006
  • Record Type: Research project
  • Source Agency: Federal Highway Administration
  • Contract Numbers: TPF-5(471)
  • Files: RiP, USDOT
  • Created Date: Jan 6 2021 3:39PM