MAXIMUM AGGREGATE SIZE EFFECT ON FROST RESISTANCE OF CONCRETE

A ONE-CYCLE FREEZING TEST WAS USED TO DEMONSTRATE THE EFFECT OF MAXIMUM SIZE OF AGGREGATE ON THE FROST RESISTANCE OF CONCRETE AT A VARIETY OF WATER-CEMENT RATIOS AND DEGREES OF SATURATION. AFTER BEING CURED FOR A PERIOD OF AT LEAST 1 MONTH, THE 3 X 6 IN. CONCRETE SPECIMENS WERE CONDITIONED TO VARIOUS DEGREES OF SATURATION TO SIMULATE DIFFERENT EXPOSURE CONDITIONS. FROST SUSCEPTIBILITY OF THE VARIOUS SPECIMENS WAS DETERMINED FROM THE LENGTH CHANGE PATTERNS PRODUCED IN THE FREEZING TEST. MAXIMUM SIZE OF AGGREGATE WAS SHOWN TO HAVE A GREAT EFFECT ON FROST RESISTANCE. FOR EXAMPLE, THE 1/4 IN. MAXIMUM AGGREGATE SIZE SPECIMENS SHOWED EXPANSIONS DURING FREEZING, ONLY WHEN THE WATER-CEMENT RATIO WAS AS HIGH AS 0.60, WHILE 3/4 IN. MAXIMUM AGGREGATE SPECIMENS SHOWED EXPANSIONS AT A WATER-CEMENT RATIO AS LOW AS 0.45. /AUTHOR/

  • Supplemental Notes:
    • Vol 68, No 2, PP 144-149
  • Authors:
    • MacInnis, C
    • LAU, E C
  • Publication Date: 1971-2

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Filing Info

  • Accession Number: 00213876
  • Record Type: Publication
  • Files: TRIS
  • Created Date: May 3 1971 12:00AM