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Suction and its effects in unfrozen water of frozen soils

From National Research Council Canada

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Affiliation
  1. National Research Council of Canada
FormatText, Article
ConferencePermafrost International Conference, November 11, 1963, Lafayette, Indiana, United States
Subjectpermafrost; soils
Abstract
Substantial quantities of water remain unfrozen in soils at temperatures of several degrees below 0°C. The proportion of unfrozen water decreases as the temperature is lowered, but as much as half of the water may exist unfrozen at -1°C. This unfrozen water has been attributed to the suctions or negative pore pressures that develop as a result of ice-lens growth in the soil. A negative pore pressure in a saturated soil, in the absence of external loading, results in a positive effective stress (a stress acting across the grain - to-grain contacts) equal to the negative pore pressure. An increase in effective stress causes consolidation in compressible soils.
Publication date
PublisherBuilding Research Advisory Board at Purdue University
In
  • Proceedings: Permafrost International Conference, 1963 (1 October 1963): 225–229.
LanguageEnglish
Peer reviewedNo
IdentifierDBR-RP-297
NRC numberNRCC 9273
NRC-IRC-528
NPARC number20375599
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Record identifier36918fa4-66b1-493e-8b57-ff385bc44b5d
Record created2012-07-23
Record modified2024-01-05
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