Static and fatigue performances of RC beams strengthened with carbon fiber sheets bonded by inorganic matrix

H. Toutanji, Y. Deng, Y. Zhang, M. Jia, P. Balaguru

Research output: Contribution to journalConference articlepeer-review

5 Scopus citations

Abstract

The objective of this paper is to study the static and fatigue performances of concrete beams strengthened with carbon fiber sheets bonded by inorganic resin matrix. Steel concrete reinforced beams were strengthened with 2, 3, 4 and 5 layers of carbon fiber sheets for static study and 3 layers of carbon fiber sheets for fatigue study. Both static and fatigue studies, strength, stiffness, ductility, failure mode and cracking patterns of strengthened beams were investigated. Results showed that the inorganic matrix system is an effective way in increasing strength and stiffness of reinforced concrete beams. Both load capacity and number of fatigue cycles of RC beams were significantly increased with carbon fiber sheets. Fatigue cracks were developed during the first few cycles. The study showed that strengthening RC beams with carbon fiber bonded with inorganic matrix improves both static and fatigue performances.

Original languageEnglish (US)
Pages (from-to)1354-1367
Number of pages14
JournalInternational SAMPE Symposium and Exhibition (Proceedings)
Volume47 II
StatePublished - Jan 1 2002
Externally publishedYes
Event47th International SAMPE Symposium and Exhibition - Long Beach, CA, United States
Duration: May 12 2002May 16 2002

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

Keywords

  • Carbon fiber
  • Concrete
  • Fatigue
  • Fire resistance
  • Inorganic matrix

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