HYDRATION OF CEMENT IN CONCRETE EXPOSED TO ATMOSPHERES HAVING VARYING RELATIVE HUMIDITY

THE WORK DESCRIBED WAS DESIGNED TO COMPARE THE HYDRATION OF ONE NORMAL AND ONE SLOW-HARDENING CEMENT IN PASTES AND MORTARS EXPOSED TO THE DRYING INFLUENCE OF ATMOSPHERES OF VARYING RELATIVE HUMIDITY. THE INITIAL WATER, CEMENT RATIOS WERE 0.25, 0.45, 0.65 AND 0.85 AND THE CEMENTS WERE /A/ A NORMAL PORTLAND CEMENT /100/0/ AND /B/ A MIXTURE OF THIS CEMENT AND BLASTFURNACE SLAG IN EQUAL WEIGHT PROPORTIONS /50/50/. THESE CEMENTS ARE IN WIDE SPREAD USE IN SOUTH AFRICA. WHEN CONTINUOUSLY MOIST-CURED, THE 50/50 MIXTURE HARDENS MORE SLOWLY THAN THE 100/0 CEMENT AT EARLY AGES, BUT AFTER ABOUT 3 MONTHS THE DIFFERENCE IN BEHAVIOUR BETWEEN THESE MIXTURES IS GENERALLY FOUND TO BE NEGLIGIBLE. /RRL/A/

  • Supplemental Notes:
    • Vol7, No11, PP284-294, 6FIG, 16TAB, 17REF
  • Authors:
    • Mills, R H
  • Publication Date: 1965-11

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Filing Info

  • Accession Number: 00212219
  • Record Type: Publication
  • Source Agency: Road Research Laboratory /UK
  • Files: TRIS
  • Created Date: May 1 1994 12:00AM