THE COMPRESSIVE STRENGTH OF CONCRETE CORES

TESTS HAVE BEEN CARRIED OUT TO COMPARE CONCRETE CORES OF VARIOUS DIAMETERS WITH STANDARD CONCRETE CYLINDERS. THE RESULTS CONFIRM THAT THE COMPRESSIVE STRENGTH OF CORES FROM WELL-CURED CONCRETE SLABS IS LOWER THAN THE STRENGTH OBTAINED FROM THE STANDARD CYLINDERS. THE VARIATION IN THE COMPRESSIVE STRENGTH OF CONCRETE CORES IS ALSO GREATER THAN IN CAST CYLINDERS, BUT THE VARIATION IN CORE STRENGTHS WAS NOT RELATED TO THE DIAMETER. PART OF THE INCREASED VARIATION IN CORE STRENGTHS MAY BE DUE TO PLACING TECHNIQUES AND/OR MIX DESIGN. A CORRECTION FACTOR OF 1.08 FOR ALL CORES LESS THAN 6 IN. DIAMETER WAS FOUND TO APPLY FOR CORES TAKEN FROM SLABS ON GROUND AT AN AGE OF 28 DAYS. /TRRL/

  • Corporate Authors:

    Commonwealth Scientific & Industrial Research Org

    314 Albert Street
    East Melbourne, Victoria,   Australia 
  • Authors:
    • Lewis, R K
  • Publication Date: 1972

Media Info

  • Features: Figures; References; Tables;
  • Pagination: 34 p.
  • Serial:
    • Issue Number: l18

Subject/Index Terms

Filing Info

  • Accession Number: 00214400
  • Record Type: Publication
  • Source Agency: Transport and Road Research Laboratory (TRRL)
  • Report/Paper Numbers: R&d Rpt
  • Files: TRIS
  • Created Date: Dec 11 1973 12:00AM