Realistic Bond Strength of FRP Rebars in NSC from Beam Specimens

The bond strength of reinforcing bars in concrete is a prerequisite for evaluation of the development length in reinforced concrete structures. This study concerns these phenomena for fiber reinforced polymer (FRP) rebars in normal strength concrete (NSC). Three different types of rebars were tested using the beam specimen: Carbon, glass, and steel. This involved a total of 26 beam specimens containing 10, 16, and 19 mm rebars. The test embedment lengths were 10, 15, and 20 times the rebar diameter (d-sub-b). For each rebar tested, results concern load deflection curves, bond stress-slip responses, and mode of failure. Results show that the bond strength of an FRP rebar is, generally, lower than that of steel rebar. Based on this and prior research, proposals for average bond strength and for the development length of straight FRP rebars under tension in NSC are made.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/08931321
• Supplemental Notes:
  • Abstract reprinted with permission from ASCE
• Authors:
  • Okelo, Roman
• Publication Date: 2007-7

Language

• English

Media Info

• Media Type: Print
• Features: Figures; Photos; References; Tables;
• Pagination: pp 133-140
• Serial:
  • Journal of Aerospace Engineering
  • Volume: 20
  • Issue Number: 3
  • Publisher: American Society of Civil Engineers
  • ISSN: 0893-1321
  • EISSN: 1943-5525
  • Serial URL: http://ascelibrary.org/journal/jaeeez

Subject/Index Terms

• TRT Terms: Adhesive bond strength; Beams; Fiber reinforced materials; Fiber reinforced plastics; Material reinforcement; Reinforced concrete; Reinforcing bars; Structural members
• Subject Areas: Bridges and other structures; Design; Highways; I24: Design of Bridges and Retaining Walls;

Filing Info

• Accession Number: 01053732
• Record Type: Publication
• Files: TRIS
• Created Date: Jul 20 2007 9:55AM