Toward the Development of Pavement-Specific Structural Synthetic Fibers

The application of synthetic fibers can reduce the fatigue cracking and faulting of thin concrete pavements and overlays. Currently available synthetic fibers used in concrete pavements are mainly polyolefin-based. Previous studies suggest that any fibers can plastically elongate and pullout from the concrete when crack widths are wide enough, thus becoming ineffective in transferring wheel load across adjacent sawn or cracked slabs. The purpose and effectiveness of reinforcement is holding concrete across differing crack widths. The goal of this study is to better understand existing polyolefin fiber performance against the abovementioned plastic elongation and pullout to eventually further increase the life of concrete pavements and overlays. This study will be conducted in two phases. This contract is for the first phase of a larger project, which has the two following objectives: (i) determining the forces induced on the fibers because of vehicular and environmental loads when used in concrete pavements and (ii) identifying those characteristics that can most easily be changed in both or either the concrete and fibers for the purpose of improved performance of thin concrete pavements and overlays. Once the first phase is completed, the next phase will deal with the designing and testing of the pavement specific concrete mixture and fibers.

  • Supplemental Notes:
    • TPF-5(341)

Language

  • English

Project

  • Status: Active
  • Funding: $99,792.00
  • Contract Numbers:

    1036342 WO#5

  • Sponsor Organizations:

    National Road Research Alliance

    St. Paul, MN  United States  55155
  • Managing Organizations:

    Minnesota Department of Transportation

    395 John Ireland Boulevard
    St Paul, MN  United States  55155
  • Principal Investigators:

    Barman, Manik

  • Start Date: 20210322
  • Expected Completion Date: 20230331
  • Actual Completion Date: 0

Subject/Index Terms

Filing Info

  • Accession Number: 01767983
  • Record Type: Research project
  • Source Agency: Minnesota Department of Transportation
  • Contract Numbers: 1036342 WO#5
  • Files: RIP, STATEDOT
  • Created Date: Mar 24 2021 11:50AM