High Performance Concrete with Post-Tensioning Shrinking Fibers (2.7)

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.

• Record URL:
  https://tidc.umaine.edu/tidc_project/2-7-uvm/

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: 20230531
• Actual Completion Date: 0
• USDOT Program: University Transportation Centers Program

Subject/Index Terms

• TRT Terms: Durability; Fiber reinforced concrete; High performance concrete; Mechanical properties; Polymer fibers; Posttensioning
• Subject Areas: Bridges and other structures; Highways; Materials; Pavements;

Filing Info

• Accession Number: 01698509
• Record Type: Research project
• Source Agency: Transportation Infrastructure Durability Center
• Contract Numbers: 69A3551847101
• Files: UTC, RIP
• Created Date: Mar 5 2019 4:37AM