THE EFFECTS OF CHEMICAL ADMIXTURES ON CREEP IN CONCRETE

THIS PAPER CRITICALLY REVIEWS THE RESULTS OF A NUMBER OF INVESTIGATIONS INTO THE EFFECTS OF CHEMICAL ADMIXTURES ON CREEP IN CONCRETE. IT IS SHOWN THAT MANY OF THE APPARENT ANOMALIES IN THESE INVESTIGATIONS CAN BE CLARIFIED BY: (1) SEPARATING THE "INTRINSIC" INFLUENCE OF THE ADMIXTURE FROM THE EFFECTS OF CONCOMITANT CHANGES IN MIX PROPORTIONS. (2) RECOGNISING THE HIGHLY SPECIFIC NATURE OF THE CEMENT- ADMIXTURE INTERACTION ON SUBSEQUENT CREEP BEHAVIOUR. (3) RECOGNISING THAT THE INFLUENCE OF ADMIXTURES ON CREEP IS ENHANCED BY THE EFFECTS OF SIMULTANEOUS DRYING. IT IS SHOWN THAT UNDER CERTAIN CONDITIONS OF ADMIXTURE USE AND ENVIRONMENTAL EXPOSURE, CHEMICAL ADMIXTURES CAN GIVE RISE TO HIGHLY SIGNIFICANT INCREASES IN CREEP. A NUMBER OF PRACTICAL RECOMMENDATIONS ARE MADE FOR THE USE OF ADMIXTURES IN CREEP- SENSITIVE SITUATIONS.(A)

  • Availability:
  • Corporate Authors:

    Institution of Engineers

    Science House, Gloucester and Essex Streets
    Sydney,   Australia 
  • Authors:
    • Morgan, D R
  • Publication Date: 1974

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Filing Info

  • Accession Number: 00083364
  • Record Type: Publication
  • Source Agency: Transport and Road Research Laboratory (TRRL)
  • Files: ITRD, TRIS
  • Created Date: May 1 1975 12:00AM