Residual behaviour of glass FRP bars subjected to high temperatures

Simone Spagnuolo, Alberto Meda, Zila Rinaldi, Antonio Nanni

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

The adoption of glass fiber reinforced polymer (GFRP) bars is becoming an interesting solution for different structural application, as a replacement of ordinary steel reinforcement, mainly for durability performance. The behavior of GFRP reinforcement, after high temperature exposure, is of critical importance for applications in concrete structures potentially subjected to fire. Accordingly, the aim of this study is the experimental evaluation of the residual behavior of GFRP bars subjected to different temperatures treatments, ranging between 100 and 700 °C. In particular, tensile tests on E-CR Glass FRP bars with nominal diameter of 14 mm were carried out after thermal treatment in an electric muffle, in order to characterize the degradation of the material residual properties after high temperature exposure. Young's modulus and tensile strength decay were recorded. The experimental results are discussed with reference to practical structural applications as tunnel segmental lining.

Original languageEnglish (US)
JournalComposite Structures
DOIs
StateAccepted/In press - Jan 1 2018

Fingerprint

Glass fibers
Polymers
Glass
Reinforcement
Tunnel linings
Steel
Concrete construction
Temperature
Fires
Durability
Tensile strength
Elastic moduli
Heat treatment
Degradation
fiberglass

Keywords

  • GFRP reinforcing bar
  • High temperatures
  • Residual properties
  • Strength decay
  • Thermal degradation

ASJC Scopus subject areas

  • Ceramics and Composites
  • Civil and Structural Engineering

Cite this

Residual behaviour of glass FRP bars subjected to high temperatures. / Spagnuolo, Simone; Meda, Alberto; Rinaldi, Zila; Nanni, Antonio.

In: Composite Structures, 01.01.2018.

Research output: Contribution to journalArticle

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