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This article in SSSAJ

  1. Vol. 37 No. 6, p. 819-822
     
    Received: Apr 30, 1973
    Published: Nov, 1973


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doi:10.2136/sssaj1973.03615995003700060012x

The Water-Ice Phase Composition of Clay-Water Systems: I. The Kaolinite-Water System1

  1. Duwayne M. Anderson,
  2. Allen R. Tice and
  3. Amos Banin2

Abstract

Abstract

Previous work has indicated that when water-ice phase composition curves are normalized to unit surface area, unfrozen water content values at all temperatures are higher for the kaolinite-water system than for other clay-water systems. In addition, the water-ice phase composition curve for this system appeared to be the resultant of the superposition of two power curves of the form Wu = αθβ. The measurements have been repeated using an improved isothermal calorimeter and the earlier results confirmed. Values of Wu per unit surface area for the kaolinite-water systems are more than twice as large as those for the montmorillonite-water systems. Addition of polyox (polyethylene oxide) to the kaolinite-water system had little effect on Wu in the range of 0 < θ < 1.7 but diminished Wu significantly at values of θ > 1.7. The observations are explained qualitatively in terms of a domain model of clayimbibed water.

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