THEORY FOR THE FLEXURAL STRENGTH OF STEEL FIBER REINFORCED CONCRETE

A THEORY IS PRESENTED TO PREDICT THE FLEXURAL TENSILE STRENGTH OF CONCRETE REINFORCED WITH SHORT, DISCONTINUOUS STEEL FIBERS RANDOMLY ORIENTED AND UNIFORMLY DISPERSED IN A CEMENT-BASED MATRIX. THE THEORY IS BASED ON A DUAL CRITERION OF CRACK CONTROL AND COMPOSITE MECHANICS. THE FIRST CRACK IN THE FIBROUS COMPOSITE OCCURS DUE TO BOND SLIP. THE FRACTURE PROCESS CONSISTS OF PROGRESSIVE DEBONDING OF FIBERS DURING WHICH SLOW CRACK PROPAGATION OCCURS. FINAL FAILURE OCCURS DUE TO UNSTABLE CRACK PROPAGATION WHEN FIBERS PULL OUT AND THE INTERFACIAL SHEAR STRESS REACHES THE ULTIMATE BOND STRENGTH. THE THEORY IS SUPPORTED BY TEST DATA ON FIBER REINFORCED CONCRETE, MORTAR AND PASTE.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/00088846
• Authors:
  • Swamy, R N
  • MANGAT, P S
• Publication Date: 1974-3

Media Info

• Pagination: p. 313-25
• Serial:
  • Cement and Concrete Research
  • Volume: 4
  • Issue Number: 2
  • Publisher: Elsevier
  • ISSN: 0008-8846
  • Serial URL: http://www.sciencedirect.com/science/journal/00088846

Subject/Index Terms

• TRT Terms: Bond strength (Materials); Bonding; Cracking; Failure; Fibers; Flexural strength; Material reinforcement; Reinforced concrete; Shear stress; Tensile strength; Theory
• Uncontrolled Terms: Crack propagation
• Old TRIS Terms: Test results
• Subject Areas: Bridges and other structures; Highways;

Filing Info

• Accession Number: 00210088
• Record Type: Publication
• Files: TRIS
• Created Date: Jun 19 1974 12:00AM