Please use this identifier to cite or link to this item: https://hdl.handle.net/11681/11852
Title: Calculating the amount of unfrozen water in frozen ground from moisture characteristic curves
Authors: Keune, R. (Robert)
Hoekstra, P. (Pieter)
Keywords: Frozen ground
Permafrost
Unfrozen water content
Moisture content
Soils
Mathematical models
Mathematical analysis
Publisher: Cold Regions Research and Engineering Laboratory (U.S.)
Engineer Research and Development Center (U.S.)
Series/Report no.: Special report (Cold Regions Research and Engineering Laboratory (U.S.)) ; 114.
Description: Special Report
Abstract: The unfrozen water content of a soil can be determined by calculating the partial molar free energy of water (∆F, ) at any temperature and referring this value to the plot of (∆F, ) vs. the water content of the soil under consideration. A plot of (∆F, ) vs. water content can be obtained from a moisture characteristic curve at room temperature. Methods of calculating the numerical values for the graphs are outlined. Data are given for granular, clay, loam, and peat soils and for Na-montmorillonite, so that the results should be useful in estimating unfrozen water by comparing an unknown soil with a similar soil in the report.
Rights: Approved for public release; distribution is unlimited.
URI: http://hdl.handle.net/11681/11852
Appears in Collections:Special Report

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