Research Activities: 2012

Long-term Behavior of GFRP Reinforced Panels after Eight Years of Field Exposure

Status Complete             View Final Report: PDF
Sequential Number R352
Identification Number 00042703
Matching Research Agency

Missouri University of Science and Technology

Principal Investigator

John J. Myers
Associate Professor
Missouri University of Science and Technology
325 Butler Carlton Hall
Rolla, MO 65409
(573) 341-6618

Student Involvement

One graduate student


Project Objective
To study the effect of long-term conditioning on the behavior of GFRP reinforced panels.

Project Abstract
Since 1998, Missouri S&T/University of Missouri-Rolla investigators have been involved in more than 25 bridge repairs and/or new bridge construction involving composite materials. To date, many of these projects have shown reliable field performance. However, there have been
little follow-up investigations to study their residual capacity and behavior after long-term exposure to conditioning. This study will examine the crack pattern development over time in GFRP reinforced panels fabricated in 2005 and exposed to field conditions. The study will also test and autopsy the GFRP reinforcing bars to examine property degradation. The GFRP
reinforced panels will be studied in flexure to examine any degradation in flexural behavior.

Relationship to other Research/Projects

Since 1999, Missouri S&T/University of Missouri-Rolla investigators have been involved in more than 25 bridge repairs and/or new construction involving composite materials. This project will provide valuable information on GFRP bars exposed to ambient conditions of Missouri weathering and stress over eight years.


Transportation-Related Keywords

Fiber Reinforced Polymers, Secondary Reinforcement, Durability behavior of GFRP bars.

Technology Transfer Activities

Results of the proposed work will be available for use in the NUTC technology transfer activities (i.e. Newsletters, Annual Conference) as well as publication in conference and/or journal publications.


Project Deliverables

The project deliverables will include a summary report of the in-situ application and technology transfer activities.

Anticipated Benefits

This work will provide the first field based data collection on GFRP reinforced panels with secondary reinforcement.


Project Start Date: 05/15/2013
Project End Date: