CGRG Bibliography of Canadian Geomorphology
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Author : Dagnesse, A.
Date : 2008.
Title : Freezing induced volume changes in clay soils.
Publication : Canadian Society of Soil Science 2008 Annual Meeting: Frontiers of Soil Science. July 6 - 10, 2008. University of Northern British Columbia Prince George, British Columbia.
Issue : Program and Abstracts Volume:
Page(s) : 61.
Abstract
An increased soil volume is usually associated with soil freezing as a direct result of the 9% volumetric expansion of water as it freezes to ice. This assertion is predicated on the assumption that the soil is close to saturation at the time of freezing, although this is not necessarily always true in the field. The literature contains numerous references to freezing induced shrinkage of fine grained soils upon freezing (e.g., Kay and Angers, 2002). Hamilton (1966) presented a comprehensive data set of freezing induced volume changes for soils of varying clay contents. A previous presentation (Groenevelt and Dagesse, 2005) considered the thermodynamic basis of this phenomenon. The present study further investigates this phenomenon. While Hamilton (1966) used soils compacted from a disturbed state, undisturbed cores of soils from different textural classes are also used with the aim of investigating the relationship between volume change, void ratio, ice content and ice pressure resulting from soil freezing.
Bibliography of Canadian Geomorphology