A comparison of the creep behavior of saline ice and frozen saline Ottawa sand at 8C Academic Article uri icon


  • The creep behavior of saline ice (prepared in the laboratory by liquid phase sintering) and frozen saline Ottawa sand has been examined in tests performed at constant load in unconfined compression. The range of stress over which the tests were conducted was 0.345 to 1.034 MPa. In both materials, the salinity of the ice-brine mixture was 32 ppt NaCl. The saline ice was found to be quite plastic and to deform to strains in excess of 25% without failing. The Ottawa sand, on the other hand, was observed to enter into tertiary creep at strains of about 2% and then abruptly fail. Despite these differences, the creep behavior at small strains (< 2%) is remarkably similar. This is evidenced by a comparison of the strain rates at 2% strain and the times to reach 2% strains, both of which are very nearly the same for two materials. The results are discussed with respect to simple ideas about the mechanisms of deformation and the role of the sand in the deformation process. 1987.

published proceedings

  • Cold Regions Science and Technology

author list (cited authors)

  • Pharr, G. M., & Godavarti, P. S.

citation count

  • 13

complete list of authors

  • Pharr, GM||Godavarti, PS

publication date

  • October 1987