Durability Assessment of 15- To 20-Year-Old GFRP Bars Extracted from Bridges in the US. I: Selected Bridges, Bar Extraction, and Concrete Assessment

Glass fiber-reinforced polymer (GFRP) bars have been used in concrete structures as an alternative to steel bars due to their noncorrosive behavior. However, due to the lack of full understanding of long-term performance, their use as internal reinforcement is still limited. To evaluate the durability of in-service GFRP bars under natural exposure, a collaborative project including four organizations investigated the conditions of GFRP bars and their surrounding concrete from bridges with 15-20 years of service. The aim of Part I of a two-paper series is to describe the bridge structures, methods of extraction, and the results of concrete testing, wheras Part II focuses on GFRP bar performance. The extracted bars were tested for physical, mechanical, and chemical properties, and the surrounding concrete was evaluated for chloride penetration, pH, and carbonation depth at the level of reinforcement. Results showed that carbonation and chloride may have reached the depth of the GFRP bars. This paper discusses the process of extraction of the bars, including the location and type of the selected bridge, and the concrete tests performed in terms of procedure, results, and observations.

Files

Metadata

Work Title Durability Assessment of 15- To 20-Year-Old GFRP Bars Extracted from Bridges in the US. I: Selected Bridges, Bar Extraction, and Concrete Assessment
Access
Open Access
Creators
  1. Vanessa Benzecry
  2. Ali F. Al-Khafaji
  3. Rudy T. Haluza
  4. Charles E. Bakis
  5. John J. Myers
  6. Antonio Nanni
License In Copyright (Rights Reserved)
Work Type Article
Publisher
  1. Journal of Composites for Construction
Publication Date April 1, 2021
Publisher Identifier (DOI)
  1. https://doi.org/10.1061/(ASCE)CC.1943-5614.0001110
Deposited July 16, 2021

Versions

Analytics

Collections

This resource is currently not in any collection.

Work History

Version 1
published

  • Created
  • Added Benzecry_et_al_FRP_Bar_Durability_Part_1_JCC2021_post-review.pdf
  • Added Creator Vanessa Benzecry
  • Added Creator Ali F. Al-Khafaji
  • Added Creator Rudy T. Haluza
  • Added Creator Charles E. Bakis
  • Added Creator John J. Myers
  • Added Creator Antonio Nanni
  • Published
  • Updated
  • Updated
  • Updated

Version 2
published

  • Created
  • Updated Work Title, Subtitle Show Changes
    Work Title
    • Durability Assessment of 15- To 20-Year-Old GFRP Bars Extracted from Bridges in the US. I
    • Durability Assessment of 15- To 20-Year-Old GFRP Bars Extracted from Bridges in the US. I: Selected Bridges, Bar Extraction, and Concrete Assessment
    Subtitle
    • Selected Bridges, Bar Extraction, and Concrete Assessment
  • Published
  • Updated
  • Updated