The effect of elevated temperatures on the tensile performance of GFRP and CFRP sheets

Jarrah, M ; Sharif University of Technology | 2018

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  1. Type of Document: Article
  2. DOI: 10.1016/j.conbuildmat.2018.09.086
  3. Publisher: Elsevier Ltd , 2018
  4. Abstract:
  5. In this study, the effects of fiber type (i.e., carbon and glass fibers) and intumescent paint on the tensile performance of fiber reinforced polymer (FRP) sheets at elevated temperatures are investigated. For this purpose, a series of tensile tests were conducted on the glass and carbon fiber reinforced polymer (GFRP and CFRP) sheets, with and without intumescent fire retardant paint, at different elevated temperatures. The studied temperatures ranged from 25 °C to 600 °C. Scanning electron microscopy was also used to examine the effects of elevated temperatures on FRP sheets and the fire protecting mechanism of the intumescent paint. Based on the test results, the tensile strength of the FRP sheets decreased significantly after exposure to high temperatures so that GFRP and CFRP sheets lost about 87% and 67% of their tensile strength at 600 °C. However, the corresponding specimens that were coated with intumescent paint experienced lower tensile strength reductions (i.e., 62% and 60% for the GFRP and CFRP sheets, respectively, at 600 °C). Finally, predictive models were proposed for the tensile performance of sheets at elevated temperatures based on Bayesian linear regressions conducted on the experimental data. © 2018
  6. Keywords:
  7. CFRP ; Elevated temperatures ; Fire protection ; Fire retardant Materials ; FRP sheets ; GFRP ; Intumescent paint ; Carbon fiber reinforced plastics ; Fiber reinforced plastics ; Fibers ; Fire protection ; Fires ; Paint ; Reinforced plastics ; Reinforcement ; Scanning electron microscopy ; Tensile testing ; Elevated temperature ; Fiber reinforced polymers ; Fire-retardant materials ; FRP sheet ; GFRP ; Glass and carbon fibers ; Tensile performance ; Tensile strength reductions ; Tensile strength
  8. Source: Construction and Building Materials ; Volume 190 , 2018 , Pages 38-52 ; 09500618 (ISSN)
  9. URL: https://www.sciencedirect.com/science/article/abs/pii/S0950061818322657