INCREASE IN CREEP OF HARDENED CEMENT PASTE DUE TO CARBONATION UNDER LOAD

Carbonation usually affects only a small portion, the surface layer, of structural concrete but in laboratory specimens a large portion of the total volume may become carbonated. It is shown experimentally that carbonation under load can increase the creep of small laboratory specimens by more than 50% and thus limit the practical application of laboratory creep results. The experimental work was performed on prisms of hardened cement paste with a water/cement ratio of 0.47. Various techniques were used to indicate the changes in hardened cement paste structure that resulted from carbonation; these led to a description of the paste that could account both for the experimental results and for other data indicating that carbonation prior to loading reduces creep. (A).

  • Availability:
  • Corporate Authors:

    An Foras Forbartha

    St Martin's House, Waterloo Road
    Dublin 4,   Ireland 
  • Authors:
    • Parrott, L J
  • Publication Date: 1975-9

Media Info

  • Features: Figures; Photos; References;
  • Pagination: p. 179-181
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00134400
  • Record Type: Publication
  • Source Agency: Transport and Road Research Laboratory (TRRL)
  • Files: ITRD, TRIS
  • Created Date: Sep 16 1976 12:00AM