TENSILE DURABILITY PERFORMANCE OF CEMENTITIOUS COMPOSITES EXTERNALLY WRAPPED WITH FRP SHEETS

Fiber reinforced plastic composite (FRPC) wraps have been established as an effective method for rehabilitation and strengthening of concrete structures. This paper presents the results of an experimental study on the tensile performance of cement and concrete materials wrapped with FRPC sheets subjected to wet-dry and free-thaw cycles. The tensile test was conducted using the ASCERA hydraulic tensile tester. This test technique provides a more uniform tensile loading and minimizes gripping stresses and misalignment which can be a significant source of error. Test variables included the type of fiber and environmental exposure conditions. At the end of each exposure, tensile strength behavior was obtained and then compared to the performance of unconditioned samples. Test results show that the C1 carbon fiber wrapped specimens experienced no reduction in strength due to wet/dry or freeze/thaw exposure, whereas C2 carbon fiber experienced a 10% reduction in strength. Glass fiber wrapped specimens subjected to wet/dry exposure exhibited about a 20% reduction in strength, whereas specimens subjected to freeze/thaw exposure suffered about a 5% reduction in strength. The rule of mixtures model was used to predict the tensile strength of the fibers. Fractography was used to identify the failure initiating flaw and failure mode for the fractured tensile specimens.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/189074302X
• Corporate Authors:

  University of Arizona, Tucson

  Drachman Institute, 819 E First Street
  Tucson, AZ  United States  85721

  University of Arizona, Tucson

  Department of Civil Engineering and Engineering Mechanics
  1209 E 2nd Street
  Tucson, AZ  United States  85721-0072

  University of Arizona, Tucson

  Transportation and Traffic Institute
  Tucson, AZ  United States  85721
• Authors:
  • Toutanji, H
  • El-Korchi, T
• Conference:
  • Second International Conference on Composites in Infrastructure
  • Location: Tucson, Arizona
  • Date: 1998-1-5 to 1998-1-7
• Publication Date: 1998-1

Language

• English

Media Info

• Features: Figures; References; Tables;
• Pagination: p. 410-422
• Serial:
  • Volume: 2

Subject/Index Terms

• TRT Terms: Carbon fibers; Cement; Composite materials; Concrete structures; Dry weather; Durability; Fiber reinforced plastics; Fibers; Freeze thaw durability; Glass fibers; Rehabilitation; Sheets; Strength of materials; Tensile properties; Tensile strength; Wet weather
• Uncontrolled Terms: External wrap
• Subject Areas: Geotechnology; Highways; Materials;

Filing Info

• Accession Number: 00764831
• Record Type: Publication
• ISBN: 189074302X
• Files: TRIS
• Created Date: Jun 2 1999 12:00AM