Measurement of osmotic suction using the squeezing technique

  • N. Peroni
  • A. Tarantino
Part of the Springer Proceedings in Physics book series (SPPHY, volume 93)


The paper presents an experimental determination of the osmotic component of suction by means of the squeezing technique. Soil was mixed with distilled water at different water contents and squeezed at different pressures. Osmotic suction was estimated from electrical conductivity of water extracted from the soil and two different empirical relationships were used to estimate osmotic suction. Experimental results have shown that osmotic suction depends upon the extraction pressure and the initial water content. The osmotic suction measured using the squeezing technique was then compared with the difference between total suction (measured with transistor psychrometer) and matric suction (measured with axis translation technique).


Pore Water Unsaturated Soil Matric Suction Initial Water Content Water Retention Curve 


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Copyright information

© Springer-Verlag Berlin Heidelberg 2005

Authors and Affiliations

  • N. Peroni
    • 1
  • A. Tarantino
    • 2
  1. 1.Dipartimento di Fisica e Ingegneria dei Materiali e del TerritorioUniversità Politecnica delle MarcheAnconaItaly
  2. 2.Dipartimento di Ingegneria Meccanica e StrutturaleUniversità degli Studi di TrentoTrentoItaly

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