Prediction of soil water retention properties using pore-size distribution and porosity

Christopher T. S. Beckett*, Charles E. Augarde

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

Several models have been suggested to link a soil's pore-size distribution to its retention properties. This paper presents a method that builds on previous techniques by incorporating porosity and particles of different sizes, shapes, and separation distances to predict soil water retention properties. Mechanisms are suggested for the determination of both the main drying and wetting paths, which incorporate an adsorbed water phase and retention hysteresis. Predicted results are then compared with measured retention data to validate the model and to provide a foundation for discussing the validity and limitations of using pore-size distributions to predict retention properties.

Original languageEnglish
Pages (from-to)435-450
Number of pages16
JournalCanadian geotechnical journal
Volume50
Issue number4
Early online date18 Apr 2013
DOIs
Publication statusPublished - Apr 2013

Keywords

  • pore-size distribution
  • suction
  • cavitation
  • POROUS-MEDIA
  • CAPILLARY CONDENSATION
  • CHARACTERISTIC CURVE
  • LIQUID RETENTION
  • SCALE MODEL
  • ADSORPTION
  • POROSIMETRY
  • HYSTERESIS

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