ACCELERATED TESTING OF CONCRETE - THE STATE OF THE ART

WORK CARRIED OUT IN AUSTRALIA HAS CONFIRMED THAT IT IS POSSIBLE TO OBTAIN AN EARLY INDICATION OF THE 28-DAY COMPRESSIVE STRENGTH OF CONCRETE, OR MORE GENERALLY, AN INDICATION OF THE STRENGTH POTENTIAL OF THE PARTICULAR CONCRETE. IN THE MOST WIDELY USED PROCEDURE IN AUSTRALIA AT PRESENT, THE CYLINDERS, COMPLETE IN THEIR MOLDS WITH SEALED LIDS, ARE PLACED IN THE ACCELERATED CURING TANK. WATER TEMPERATURE IS MAINTAINED AT 180 DEGREE F FOR 14 HOURS AFTER WHICH THE CYLINDERS ARE REMOVED FROM THE TANK, STRIPPED, CAPPED, AND CRUSHED WITHIN 3 HOURS. THE FIELD EVALUATION OF THE PROCEDURES INVOLVED HAS SHOWN THAT, PROVIDED REASONABLE CARE IS TAKEN IN HANDLING THE FRESHLY CAST SPECIMENS, IT IS POSSIBLE TO OBTAIN AN EXCELLENT CORRELATION BETWEEN ACCELERATED AND 28-DAY STRENGTHS FOR VARYING DELAYS BETWEEN CASTING THE SPECIMENS AND PLACING THEM IN THE CURING TANK. /AUTHOR/

• Supplemental Notes:
  • Vol 43, No 9, PP 6-10
• Authors:
  • Ryan, W G
• Publication Date: 1971-9

Media Info

• Serial:
  • Institution Engineers J /Australia/
  • Volume: 43
  • Issue Number: 9

Subject/Index Terms

• TRT Terms: Compression tests; Compressive strength; Concrete; Performance
• Uncontrolled Terms: Field performance
• Old TRIS Terms: Compressive strength tests
• Subject Areas: Highways; Materials;

Filing Info

• Accession Number: 00214051
• Record Type: Publication
• Files: TRIS
• Created Date: Feb 24 1972 12:00AM