FRACTURE TOUGHNESS FOR HIGH-STRENGTH CONCRETE

In this paper, the concepts of linear elastic fracture mechanics are summarized. It is shown that a single fracture parameter, such as the critical stress intensity factor, cannot be simply applied to quasi-brittle material like concrete. A two-parameter fractuer model is presented. The two parameters can be calculated from an (ASTM-type) notched-beam test. This model accurately predicts fracture toughness, as well as split cylinder strength and modulus of rupture strength of high-strength concrete.

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• Corporate Authors:

  American Concrete Institute

  P.O. Box 19150, Redford Station, 22400 Seven Mile Road
  Detroit, MI  United States  48219
• Authors:
  • Shah, S P
• Publication Date: 1990-5

Media Info

• Features: Figures; References;
• Pagination: p. 260-265
• Serial:
  • ACI Materials Journal
  • Volume: 87
  • Issue Number: 3
  • Publisher: American Concrete Institute (ACI)
  • ISSN: 0889-325X
  • Serial URL: https://www.concrete.org/publications/acimaterialsjournal.aspx

Subject/Index Terms

• TRT Terms: Beams; Brittleness; Concrete tests; Flexural strength; Forecasting; Fracture mechanics; High strength concrete; Mathematical models; Modulus of rupture; Structural tests; Tensile strength; Toughness
• Uncontrolled Terms: Models
• Old TRIS Terms: Notch
• Subject Areas: Bridges and other structures; Highways; Materials; I32: Concrete;

Filing Info

• Accession Number: 00495273
• Record Type: Publication
• Report/Paper Numbers: Title No. 87-M29
• Files: TRIS
• Created Date: Jul 31 1990 12:00AM