High Performance Concrete with Post-Tensioning Shrinking Fibers

This research improves upon the technique of reinforcing concrete with dispersed fibers by having the fibers axially shrink after curing to produce a dispersed multi-axial post-tensioned state. Such reinforcing has the potential to increase the crack resistance and durability of the concrete. Preliminary benchtop testing with natural chitosan polymer fibers have confirmed the viability of the technique, where certain configurations show significant strengthening with the shrinking fibers. The proposed research would expand the knowledge base by examining larger scale chitosan samples, exploring steel and nitinol shape memory fibers that produce a similar effect, studying the underlying mechanical principles and exploring direct applicability to transportation structures.

Language

  • English

Project

  • Status: Active
  • Funding: $220000
  • Contract Numbers:

    69A3551847101

  • Sponsor Organizations:

    University of Vermont, Burlington

    85 South Waterman Building
    Burlington, VT  United States  05405

    Office of the Assistant Secretary for Research and Technology

    University Transportation Centers Program
    Department of Transportation
    Washington, DC  United States  20590
  • Managing Organizations:

    Transportation Infrastructure Durability Center

    University of Maine
    Orono, ME  United States  04469

    Office of the Assistant Secretary for Research and Technology

    University Transportation Centers Program
    Department of Transportation
    Washington, DC  United States  20590
  • Project Managers:

    Dunn, Denise

  • Performing Organizations:

    Transportation Infrastructure Durability Center

    University of Maine
    Orono, ME  United States  04469

    University of Vermont, Burlington

    85 South Waterman Building
    Burlington, VT  United States  05405
  • Principal Investigators:

    Huston, Dryver

  • Start Date: 20190101
  • Expected Completion Date: 20201231
  • Actual Completion Date: 0
  • USDOT Program: University Transportation Centers Program

Subject/Index Terms

Filing Info

  • Accession Number: 01698509
  • Record Type: Research project
  • Source Agency: Transportation Infrastructure Durability Center
  • Contract Numbers: 69A3551847101
  • Files: UTC, RiP
  • Created Date: Mar 4 2019 12:48PM