Ultimate Strength of Fiber-Reinforced Concrete under Cyclic, Flexural Loading.

Abstract

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)

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Document Details

Document Type
Technical Report
Publication Date
May 01, 1978
Accession Number
ADA055414

Entities

People

  • Edward F. O'neil

Tags

Communities of Interest

  • Energy and Power Technologies
  • Ground and Sea Platforms

DTIC Thesaurus Topics

  • Aspect Ratio
  • Compressive Strength
  • Concrete
  • Construction
  • Cyclic Tests
  • Engineers
  • Fabrication
  • Failure Mode And Effect Analysis
  • Flexural Strength
  • Materials
  • Measurement
  • Mechanics
  • Reinforced Concrete
  • Static Tests
  • Tensile Strength
  • United States
  • Waterways

Fields of Study

  • Engineering

Readers

  • Pavement Materials Engineering.
  • Structural Health Monitoring of Composite Structures.