Durability related design of GFRP bar reinforced concrete structures

J. W. Huang, R. S. Aboutaha

Research output: Contribution to conferencePaper

2 Scopus citations

Abstract

Under harsh environmental conditions, a GFRP bar will undergo physical and chemical changes, which will lead to the degradation of the GFRP materials. The long-term properties of GFRP bars in concrete have been incorporated in the various international guidelines by adopting strength reductions or stress limiting factors assumed for GFRP reinforcement as a single environmental reduction factor. In this paper, the concrete pore structures (pore size, pore volume and pore connectivity), water content in concrete, the changing pH of concrete pore solution due to the carbonation and external environments were investigated. Based on the results of this research, new durability-related strength reductions factors, stress limiting factors for GFRP reinforcement under different exposure conditions, as well as concrete cover and water/cement ratio for different applications are proposed, which should lead to more accurate and cost-effective design of GFRP bar reinforced concrete structures.

Original languageEnglish (US)
StatePublished - Dec 1 2008
Event11th East Asia-Pacific Conference on Structural Engineering and Construction, EASEC-11 - Taipei, Taiwan, Province of China
Duration: Nov 19 2008Nov 21 2008

Other

Other11th East Asia-Pacific Conference on Structural Engineering and Construction, EASEC-11
CountryTaiwan, Province of China
CityTaipei
Period11/19/0811/21/08

Keywords

  • Concrete reinforcement
  • Durability
  • Environmental factors
  • GFRP bars

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Building and Construction

Fingerprint Dive into the research topics of 'Durability related design of GFRP bar reinforced concrete structures'. Together they form a unique fingerprint.

  • Cite this

    Huang, J. W., & Aboutaha, R. S. (2008). Durability related design of GFRP bar reinforced concrete structures. Paper presented at 11th East Asia-Pacific Conference on Structural Engineering and Construction, EASEC-11, Taipei, Taiwan, Province of China.