A NEW TECHNIQUE FOR DIFFUSION TESTING OF UNSATURATED SOIL

A technique is proposed for determining the coefficients of diffusion and adsorption for ions in unsaturated soils. The method integrates the single reservoir diffusion testing of saturated soil with the axis-translation technique for the control of matric suction. The procedure allows for the application of a net total stress and matric suction to the soil during the diffusion test. The test results showed that both the coefficients of diffusion and adsorption can be determined from a single test. The results illustrate a decrease in both the effective diffusion and adsorption coefficients with a decrease in the degree of saturation.

  • Availability:
  • Corporate Authors:

    American Society for Testing and Materials (ASTM)

    100 Barr Harbor Drive, P.O. Box C700
    West Conshohocken, PA  United States  19428-2957
  • Authors:
    • BARBOUR, S L
    • Lim, P C
    • FREDLUND, D G
  • Publication Date: 1996-9

Language

  • English

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 00726875
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Oct 23 1996 12:00AM