APPLICATION OF CHEMICAL AND ELECTRICAL PARAMETERS TO PREDICTION OF ERODIBILITY

THE LABORATORY STUDY OF THE EROSIIVE BEHAVIOR OF REMOLDED SOILS SHOWS THAT THE SHEAR STRESS REQUIRED TO INITIATE EROSION IS SIGNIFICANTLY AFFECTED BY THE KINDS AND CONCENTRATION OF IONS IN THE PORE AND ERODING FLUIDS AND TYPES OF CLAY MINERALS. THE KINDS AND AMOUNTS OF CLAY MINERALS HAVE BEEN SHOWN TO BE DESCRIBED BY THE DIELECTRIC DISPERSION OF SATURATED SAMPLES. THE COMPOSITION OF THE PORE FLUID IS DESCRIBED BY THE ELECTRICAL CONDUCTIVITY AND SODIUM ADSORPTION RATIO. A METHOD FOR MEASURING THE HYDRAULIC SHEAR STRESS NECESSARY TO INITIATE EROSION HAS ALSO BEEN DEVELOPED. THIS PAPER PRESENTS EXPERIMENTAL DATA THAT DEMONSTRATE THAT THE SHEAR STRESS REQUIRED TO INITIATE EROSION DEPENDS ON SODIUM ADSORPTION RATIO, ELECTRICAL CONDUCTIVITY AND THE MAGNITUDE OF DIELECTRIC DISPERSION. /AUTHOR/

Media Info

  • Media Type: Print
  • Features: Figures; References; Tables;
  • Pagination: pp. 42-51
  • Monograph Title: SOIL EROSION: CAUSES AND MECHANISMS: PREVENTION AND CONTROL
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00236633
  • Record Type: Publication
  • Files: TRIS, TRB, ATRI
  • Created Date: Jun 25 1973 12:00AM