RELAXATION, CREEP, AND FATIGUE BEHAVIOR OF CARBON FIBER REINFORCED PLASTIC TENDONS

Corrosion of steel tendons is a major problem in prestressed and posttensioned concrete structures. Fiber reinforced plastics (FRPs) are a promising alternative to steel because of their high tensile strength, light weight, and resistance to electrochemical corrosion. This paper presents the results of a preliminary study on the relaxation, creep, and fatigue behavior of two carbon fiber reinforced plastic tendons, namely, Leadline PC-D8 8-mm-(5/16 in)-diameter tendon and 1-by-7.75-mm (5/16-in) carbon fiber composite cable (CFCC) in air and in simulated aggressive environments. The loss of tensile force for the 3,000 hour test duration at stress ratios of 0.4 and 0.6 was generally less than 10%, and it depended primarily on the initial stress level and the type and temperature of the environment. Creep behavior of both tendons was good; however, the creep strains were higher in solutions than in air. Fatigue strength was generally good and depended on the stress range and initial stress level.

• Record URL:
  • http://www.concrete.org/Publications/InternationalConcreteAbstractsPortal.aspx.aspx?m=details&i=438
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/oclc/13846872
• Supplemental Notes:
  • This study was sponsored by the National Science Foundation under Grant No. MSS-9257344 and the Federal Highway Administration under Grant No. DDEGRF-93-P-03.
• Corporate Authors:

  American Concrete Institute (ACI)

  38800 Country Club Drive
  Farmington Hills, MI  United States  48331
• Authors:
  • Saadatmanesh, H
  • TANNOUS, F E
• Publication Date: 1999-3

Language

• English

Media Info

• Features: Figures; Photos; References; Tables;
• Pagination: p. 143-153
• Serial:
  • ACI Materials Journal
  • Volume: 96
  • Issue Number: 2
  • Publisher: American Concrete Institute (ACI)
  • ISSN: 0889-325X
  • Serial URL: https://www.concrete.org/publications/acimaterialsjournal.aspx

Subject/Index Terms

• TRT Terms: Acidity; Air; Alkalinity; Carbon fibers; Concrete structures; Creep; Creep tests; Environment; Fatigue strength; Fatigue tests; Fiber reinforced plastics; Mechanical relaxation; Modulus of elasticity; Performance tests; Poisson ratio; Posttensioning; Prestressed concrete; Regression analysis; Relaxation tests; Solutions (Chemistry); Temperature; Tendons; Tensile strength
• Subject Areas: Data and Information Technology; Geotechnology; Highways; Materials; I32: Concrete; I35: Miscellaneous Materials;

Filing Info

• Accession Number: 00764910
• Record Type: Publication
• Contract Numbers: MSS-9257344
• Files: TRIS
• Created Date: Jun 3 1999 12:00AM