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/

• Record URL:
  http://onlinepubs.trb.org/Onlinepubs/sr/sr135/sr135-005.pdf
• Supplemental Notes:
  • Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Copyright © National Academy of Sciences. All rights reserved.
• Corporate Authors:

  Transportation Research Board

  500 Fifth Street, NW
  Washington, DC  United States  20001
• Authors:
  • Arulanandan, K
  • Sargunam, A
  • Loganathan, P
  • Krone, R B
• Conference:
  • Conference-Workshop on Soil Erosion
  • Location: Washington District of Columbia, United States
  • Date: 1973-1-26 to 1973-1-26
• Publication Date: 1973

Media Info

• Media Type: Digital/other
• Features: Figures; References; Tables;
• Pagination: pp. 42-51
• Monograph Title: SOIL EROSION: CAUSES AND MECHANISMS: PREVENTION AND CONTROL
• Serial:
  • Highway Research Board Special Report
  • Issue Number: 135
  • Publisher: Highway Research Board

Subject/Index Terms

• TRT Terms: Aggregates; Bearing capacity; Clay minerals; Dielectric properties; Electrical resistivity; Erosion; Ions; Pore water; Remolded soils; Shear stress; Sodium
• Old TRIS Terms: Adsorbed ions /aggregate formation/; Dielectric breakdown; Remolded soil samples; Resistivity
• Subject Areas: Geotechnology; Highways;

Filing Info

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