CRACK BEHAVIOR OF PLAIN CONCRETE AND REINFORCED CONCRETE MEMBERS STRENGTHENED WITH CARBON FIBER SHEETS

In this paper, uniaxial tension tests on CFS (carbon fiber sheet) strengthened concrete specimens with and without steel bar reinforcement and bending tests on CFS strengthened RC beams were conducted to examine the crack behavior in the concrete. The testing showed that the crack spacing of the uniaxial tension members strengthened with CFS was only slightly affected by the diameter of the reinforcing steel bars, the thickness of the concrete covering and the stiffness of the CFS. The crack spacing and the crack width both for tensile and the flexural members was significantly smaller when the CFS was used. And also the cracks were distributed in the plain concrete tension member without steel reinforcement strengthened with CFS. Finally, it was recognized that the tension stiffening effect is realized to be improved by the non-linear behavior of the CFS-concrete interface.

• Corporate Authors:

  American Concrete Institute (ACI)

  38800 Country Club Drive
  Farmington Hills, MI  United States  48331
• Authors:
  • Yoshizawa, H
  • Wu, Zhizhou
• Conference:
  • Fourth International Symposium on Fiber Reinforced Polymer Reinforcement for Reinforced Concrete Structures
  • Location: Baltimore, MD
  • Date: 1999-10-31 to 1999-11-5
• Publication Date: 1999

Language

• English

Media Info

• Features: Figures; References; Tables;
• Pagination: p. 767-779

Subject/Index Terms

• TRT Terms: Carbon fibers; Cracking; Reinforced concrete; Steel; Stiffness; Strength of materials; Tension tests
• Subject Areas: Highways; Materials; I32: Concrete;

Filing Info

• Accession Number: 00782466
• Record Type: Publication
• Report/Paper Numbers: SP-188-66
• Files: TRIS
• Created Date: Jan 18 2000 12:00AM