CUBE TESTS AND THE UNIAXIAL COMPRESSIVE STRENGTH OF CONCRETE

THE CUBE IS UNDOUBTEDLY THE MOST CONVENIENT SPECIMEN TO USE WHEN LARGE NUMBERS OF CRUSHING TESTS ARE REQUIRED FOR CONCRETE CONTROL PURPOSES. THE CYLINDER, OR PRISM, ON THE OTHER HAND CAN GIVE A MUCH BETTER ESTIMATE OF THE UNIAXIAL COMPRESSIVE STRENGTH OF CONCRETE. THE RECENT TENDENCY HAS BEEN TO FAVOUR THE ADOPTION OF THE CYLINDER AS THE STANDARD SPECIMEN, DESPITE ITS SHORTCOMINGS REGARDING CONVENIENCE. THE PAPER SHOWS THAT VARIABLE DIFFERENCES CAN OCCUR BETWEEN THE CUBE CRUSHING STRENGTH AND THE UNIAXIAL COMPRESSIVE STRENGTH, AND THEN INDICATES HOW THESE DIFFERENCES CAN BE GREATLY MINIMIZED BY A SUITABLE MODIFICATION OF THE TESTING TECHNIQUE. THIS SIMPLE MODIFICATION TO THE CUBE TEST ENABLES THE UNIAXIAL STRENGTH TO BE DETERMINED VERY READILY. THE EXTREMELY CONVENIENT CUBE SPECIMEN CAN THEREFORE NOW BE USED FOR UNIAXIAL COMPRESSIVE STRENGTH DETERMINATIONS AS WELL AS FOR NORMAL CONTROL PURPOSES. THE CONTINUED USE OF THE CUBE AS THE STANDARD FORM OF TEST SPECIMEN IS THEREFORE RECOMMENDED. /RRL/A/

• Supplemental Notes:
  • Vol17, No53, PP177-182, 7FIG, 1TAB, 17REF
• Authors:
  • HUGHES, B P
  • Bahramian, B
• Publication Date: 1965-12

Media Info

• Serial:
  • Magazine Concrete Research /UK/

Subject/Index Terms

• TRT Terms: Compression tests; Concrete; Control; Crushing; Cubes; Prisms; Specimens; Testing
• Uncontrolled Terms: Cylinders
• Old TRIS Terms: Compressive strength tests
• Subject Areas: Construction; Highways; Materials;

Filing Info

• Accession Number: 00212223
• Record Type: Publication
• Source Agency: Road Research Laboratory /UK
• Files: TRIS
• Created Date: May 1 1994 12:00AM