BOND STRENGTH OF STEEL, AFRP AND GFRP BARS IN CONCRETE

The problem of bond of new materials for concrete reinforcement, such as fiber composites, is not completely resolved. A fair amount of research and testing has been conducted in the last years to better understand the mechanisms of bond between concrete and fiber composite materials. The traditional approach to design for bond and mechanical transfer in steel reinforcement is to provide adequate development length. Researchers have applied the development length concept to nontraditional reinforcing materials such as fiber composite materials and found that adequate development length insures the full and efficient utilization of the reinforcement. There are, however, differences among researchers in regards to how much development length is needed. This paper presents the results of bond strength tests of glass and Aramid fiber reinforced composite bars as well as traditional steel bars. The test results indicate that the bond strength for the composite reinforcement is significantly less than for the steel bars. Consequently, the required development length for the fiber reinforced composite bars tested in this project is longer than that required in steel bars.

• 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:
  • Larralde, J
  • MUELLER-ROCHHOLZ, J
  • Schneider, T
  • Willmann, J
• 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. 92- 101
• Serial:
  • Volume: 2

Subject/Index Terms

• TRT Terms: Aramid fibers; Bond strength (Materials); Concrete; Development; Fiber composites; Fiber reinforced plastics; Glass fiber reinforced plastics; Length; Reinforcing bars; Reinforcing steel
• Subject Areas: Geotechnology; Highways; Materials; I32: Concrete; I35: Miscellaneous Materials;

Filing Info

• Accession Number: 00763903
• Record Type: Publication
• ISBN: 189074302X
• Files: TRIS
• Created Date: May 17 1999 12:00AM