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Title: Unfrozen water contents of undisturbed and remolded Alaskan silt as determined by nuclear magnetic resonance
Authors: Northwest Alaska Pipeline Company.
Tice, A. R. (Allen R.)
Black, Patrick B.
Berg, Richard L.
Keywords: Freeze-thaw cycles
Nuclear magnetic resonance
Frozen soils
Frozen ground
Unfrozen water contents
Publisher: Cold Regions Research and Engineering Laboratory (U.S.)
Engineer Research and Development Center (U.S.)
Series/Report no.: CRREL report ; 88-19.
Description: Technical report
Abstract: Unfrozen water content as a function of temperature was measured in the laboratory using nuclear magnetic resonance (NMR) for 16 undisturbed frozen cores acquired from the Northwest Alaska Pipeline Company Chilled Gas Test Facility. The cores were then remolded and brought to their original densities and water contents, and unfrozen water content as a function of temperature was again measured over three warming and cooling cycles. It was found that differences in unfrozen water contents between the undisturbed warming and cooling curves depended upon relative degree of saturation and its effect on soil structure. Only slight changes occurred during the three warming curves of the remolded soil, indicating minor freezing and thawing consequences on the soil structure.
Appears in Collections:CRREL Report

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