CREEP AND SHRINKAGE OF CONCRETE CONTAINING MIXTURES OF PORTLAND CEMENT AND HIGH-MAGNESIA BLAST FURNACE SLAG

A MODEL FOR THE RESPONSE OF CONCRETE TO THE COMBINED EFFECTS OF DRYING AND SUSTAINED LOAD IS DISCUSSED WITH RESPECT TO THE BEHAVIOR OF CONCRETE IN WHICH BLAST FURNACE SLAG WAS PARTIALLY SUBSTITUTED FOR PORTLAND CEMENT. DIFFERENTIAL SORPTION OF FLUIDS WAS USED TO IDENTIFY THE QUANTITY OF WATER RESIDING IN THE GEL STRUCTURE. THE RESULTS INDICATED THAT THIS QUANTITY INCREASED WITH THE PROPORTION OF BLAST FURNACE SLAG AND THAT SUCH INCREASE WAS ASSOCIATED WITH GREATER CREEP AND SHRINKAGE AS COMMONLY EXPERIENCED WITH CONCRETE CONTAINING BLAST FURNACE SLAG. DIFFERENCES IN THE AMOUNT OF WATER ENTERING SPACES OF RESTRICTED ADSORPTION WERE CONSIDERED TO ARISE FROM EITHER (1) VARIATIONS IN THE SHAPES OF GEL PORES, OR (2) DIFFERENCES IN FREE LIME CAPABLE OF BEING PRECIPITATED IN SUCH PORES. THE MAGNITUDE OF INCREASED CREEP AND SHRINKAGE IN CONCRETE CONTAINING 50 PER CENT SUBSTITUTION OF BLAST FURNACE SLAG FOR PORTLAND CEMENT WAS SUCH THAT IT COULD BE COMPENSATED BY ADJUSTMENTS IN THE MIX PROPERTIES. /TRRL-AUTHOR/

  • Supplemental Notes:
    • Vol 11, No 1, PP 1-11, 7 FIG, 10 TAB, 29 REF
  • Authors:
    • Mills, R H
  • Publication Date: 1969-1

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Filing Info

  • Accession Number: 00213029
  • Record Type: Publication
  • Source Agency: Transport and Road Research Laboratory (TRRL)
  • Files: TRIS
  • Created Date: Mar 2 1970 12:00AM