Project 2.07: High Performance Concrete with Post-Tensioning Shrinking Fibers

UMaine Alert

Posted: April 19, 2024 - 1:32 PM

At approximately 9:24 a.m. on Friday, April 19, a University of Maine graduate student was struck by a university vehicle on Long Road at the University of Maine campus in Orono. The student reports that they are at a local hospital with minor injuries.

Emergency services, including the Orono Fire Department, University Volunteer Ambulance Corps, University of Maine Police Department, Orono Police Department and Penobscot County Sheriff’s Office responded to the scene.

The university vehicle involved in the incident was a Chevrolet Express van. It was being operated by a university employee.

Counseling services and support are available for students, faculty or staff who may have been affected. The Counseling Center can be reached at 207-581-1392 and the Dean of Students Office can be reached at 207-581-1406.

The scene has been cleared and Long Road is now accessible. An investigation is being conducted by the University of Maine Police Department with assistance from the Penobscot County Sheriff’s Office Crash Reconstruction Unit. Any witnesses to the incident are encouraged to contact Lt. Noel Santiago at noel.santiago@maine.edu.

January 1, 2019

High Performance Concrete with Post-Tensioning Shrinking Fibers

Project 2.7

Project Information
Downloadable Documents

Project Summary

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 may 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. This research proposes to 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 applicability to transportation structures.

Principal Investigator

Dr. Dryver Huston

Institution:

University of Vermont

Project Status

Active

Project Cost

$220,229

Start Date

01/01/2019

Project Type

Base-funded

End Date

05/30/2023

Agency ID

69A3551847101

Sponsors:

Office of the Assistant Secretary for Research and Technology, University Transportation Centers Program, Department of Transportation
University of Vermont

Implementation of Research Outcomes:

This project is in its initial research phase. Implementation of research outcomes will be reported upon completion of the research outputs.

Impacts and Benefits of Implementation:

This project is in its research phase. Impacts and benefits of the research will be reported after the implementation phase.

UMaine Alert