THE EFFECT OF TEMPERATURE CHANGE UPON THE CREEP OF MORTAR UNDER TORSIONAL LOADING

Details are given of a novel test rig developed to investigate the creep of concrete under varying temperature. Tubes of saturated mortar were subjected to torsional load, and the creep in shear was measured. The results showed that, when the temperature was raised for the first time, the creep rate increased greatly in comparison with that of a similar specimen heated before loading. No such change of rate was observed when the temperature was lowered or when it was raised to a level previously attained. It is shown that creep under variable temperature may be considered as the sum of three components: under constant temperature, flow (irrecoverable) and delayed elastic strain (recoverable); and as a result of the first temperature rise, transitional thermal creep (irrecoverable). /Author/TRRL/

  • Availability:
  • Corporate Authors:

    Concrete Association

    52 Grosvenor Gardens
    London SW1,   England 

    Cement and Concrete Association

    52 Grosvenor Gardens
    London SW1W 0AQ,   England 
  • Authors:
    • Illston, J M
    • Sanders, P D
  • Publication Date: 1973-9

Media Info

  • Features: Figures; Photos; References;
  • Pagination: p. 136-144
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00083196
  • Record Type: Publication
  • Source Agency: Transport and Road Research Laboratory (TRRL)
  • Files: ITRD, TRIS
  • Created Date: Jul 2 1975 12:00AM