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Title: Capillary tension in rotting ice layers
Authors: Jordan, Rachel E.
Stark, Jeffrey A.
Keywords: Soil matric potential
Melting points
Publisher: Cold Regions Research and Engineering Laboratory (U.S.)
Engineer Research and Development Center (U.S.)
Series/Report no.: ERDC/CRREL ; TR-01-13.
Abstract: This study examines the moisture–tension constituent relationship of ice near 0°C by measuring its moisture characteristic curve. In this novel approach, we held ice samples in a Tempe cell submerged in a cold bath and removed water from the ice veins through incremental increases in air pressure. Observed air entry and water re-entry pressures generally support an idealized flow path model of alternating vein segments and nodes. Re-entry of water into the air-filled ice samples occurred slowly over a period of weeks, suggesting low permeabilities on the order of 1 × 10–18 m². We conclude that ice desaturates and rewets in a manner similar to soils, with entry pressures on the order of silts.
Appears in Collections:Technical Report

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