ULTIMATE STRENGTH OF FIBER-REINFORCED CONCRETE UNDER CYCLIC, FLEXURAL LOADING

Cyclic flexural fatigue tests were conducted on 6- by 6- by 36-in. fiber-reinforced concrete beams containing 0.5-in. and 1.0-in. steel fibers to determine the change in ultimate flexural strength under fatigue loading. The beams were cycled at 3 Hz until failure occurred or 2 million cycles of load terminated the tests. The beams with 0.5-in. fibers produced a smaller change (45.22 percent) in ultimate flexural strength than the beams containing 1.0-in. fibers (49.68 percent). The method of failure of the beams was by a gradual breakage of the bond between the steel and paste after the development of a crack in the concrete matrix, resulting in pullout of the fibers from the matrix. (Author)

  • Corporate Authors:

    U.S. Army Waterways Experiment Station

    3909 Halls Ferry Road
    Vicksburg, MS  USA  39180-6199
  • Authors:
    • O'Neil, E F
  • Publication Date: 1978-5

Media Info

  • Pagination: 25 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00181487
  • Record Type: Publication
  • Source Agency: National Technical Information Service
  • Report/Paper Numbers: WES-MP-C-78-5 Final Rpt.
  • Files: TRIS
  • Created Date: Oct 31 1979 12:00AM