IS 0.85 F' SUB C VALID FOR SHOTCRETE?

This article disscusses the ACI 506.2-77, "Specification for Materials Proportioning, and Application of Shotcrete." The latter has permitted an average compressive strength reduction to 0.85 f' sub c for cores obtained from daily test panels or from the structure. It is pointed out that in shotcrete, a drilled core is compared to a similar drilled core and facts are presented that show that the 85 % rule is unjustified. Therefore, since there is no engineering reason or published literature to support the 85 % rule for shotcrete, it is recommended that the construction specifications should not permit the 85 % compressive strength reduction factor for shotcrete.

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  • Find a library where document is available. Order URL: http://www.aci-int.org/PUBS/JOURNALS/AbstractDetails.asp?srchtype=phrase&date=anytime&searchmonth=9&searchday=0&searchyear=1990&publication=Concrete+International&volume=12&issue=9&title=REHABILITATION+OF+LINDEN+RESERVOIR&ID=3343
• Corporate Authors:

  American Concrete Institute

  P.O. Box 19150, Redford Station, 22400 Seven Mile Road
  Detroit, MI  United States  48219
• Authors:
  • Gebler, S
  • Schutz, R
• Publication Date: 1990-9

Media Info

• Features: Figures; References;
• Pagination: p. 67-69
• Serial:
  • Concrete International
  • Volume: 12
  • Issue Number: 9
  • Publisher: American Concrete Institute (ACI)
  • ISSN: 0162-4075

Subject/Index Terms

• TRT Terms: Boreholes; Compressive strength; Core samples; Mix design; Shotcrete; Specifications
• Uncontrolled Terms: Drilled cores
• Subject Areas: Highways; Maintenance and Preservation; Materials; I32: Concrete;

Filing Info

• Accession Number: 00600804
• Record Type: Publication
• Files: TRIS
• Created Date: Oct 31 1990 12:00AM