Resesarch is reported that attempted to correlate high strength concrete core strength to the strength of standard moist-air cured and field-cured cyliners. The details of the experimental program and results are described. The results showed that the in-situ strength as determined using drilled cores is less than that of moist-air cured and field-cured cylinders tested at the same age. At any given age, core strength is about 75 % of moist-air cured cyclinder strength, and about 85 % of field-cured cylinder strength. The data shows that for a column of concrete with a large cross-section area, coring location has little or no effect on core strength. The temperature at the center of a column with a large cross-sectional area is significantly higher than near the surface. For a concrete column with a large cross-sectional area, the core strength at the center is signifantly lower than that near the surface. It is noted that strength tests done on standard, moist-air cured cylinders are useful for quality control purposes and for checking the accpetability of the concrete as it is produced.

Media Info

  • Features: Figures; Tables;
  • Pagination: p. 30-34
  • Serial:
    • Concrete International
    • Volume: 13
    • Issue Number: 5
    • Publisher: American Concrete Institute (ACI)
    • ISSN: 0162-4075

Subject/Index Terms

Filing Info

  • Accession Number: 00608024
  • Record Type: Publication
  • Files: TRIS
  • Created Date: May 31 1991 12:00AM