On the Use of the Phi-Variable to Describe the State of Water in Porous Media

Abstract

The concepts of Gibbs free energy and surface tensions are developed to describe the state of water in two-phase porous soil systems in terms of the phi-variable. This approach differs from previous attempts at describing the thermodynamic behavior of water in porous materials by offering a simple and intuitive framework. In this framework, the phi-variable is found to control the microscopic interfaces between the pore constituent: Ice or air and water. Keywords: Cold regions, Frost heave, Frozen soils, Soil water.

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Document Details

Document Type
Technical Report
Publication Date
Feb 01, 1989
Accession Number
ADA206869

Entities

People

  • Patrick B. Black

Organizations

  • Cold Regions Research and Engineering Laboratory

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Classification
  • Cold Regions
  • Curvature
  • Engineering
  • Free Energy
  • Freezing
  • Heat Energy
  • Heat Of Fusion
  • High Pressure
  • Materials
  • Measurement
  • Regions
  • Surface Tension
  • Temperature Gradients
  • Thermodynamics
  • Thickness
  • United States

Readers

  • Environmental Engineering
  • Materials Science and Engineering.
  • Pavement Materials Engineering.