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Some Thermodynamic Relationships for Soils at or Below the Freezing Point: 2. Effects of Temperature and Pressure on Unfrozen Soil Water
Author(s) -
Low Philip F.,
Hoekstra Pieter,
Anderson Duwayne M.
Publication year - 1968
Publication title -
water resources research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.863
H-Index - 217
eISSN - 1944-7973
pISSN - 0043-1397
DOI - 10.1029/wr004i003p00541
Subject(s) - soil water , freezing point , thermodynamics , adsorption , pore water pressure , water content , geotechnical engineering , materials science , bentonite , constant (computer programming) , soil science , chemistry , geology , physics , organic chemistry , computer science , programming language
Thermodynamic methods are presented for calculating, from the water adsorption isotherms, the change in unfrozen water content of a partially frozen soil with temperature at a constant pressure or with pressure at a constant temperature. Then, using pertinent experimental data for Na‐Wyoming bentonite, the increase in unfrozen water caused by a confining pressure of 100 atm is obtained as a function of temperature. Such information is shown to be relevant to the mechanical properties of frozen soils under stress.