COMPARATIVE STUDY OF LABORATORY METHODS OF DETERMINING THE PERMEABILITY OF CLAYS

SRAVNITEL'NAYA OTSENKA LABORATORNYKH METODOV OPREDELENIYA VODOPRONITSAEMOSTI GLIN

The authors determined the permeability coefficient k of two clay pastes (kaolinite and illite) under different conditions: (1) steady flow, (2) non-steady flow, (3) calculation of k from oedometer test results. A comparative study of the k value obtained with method (1) and (3) showed that the value of the experimental permeability coefficient is 10 to 100 times lower than the value obtained with method (3). Furthermore, a comparison of the permeability coefficients measured in steady and non-steady flow shows that there exists no agreement between these coefficients; this is thought to be due to the difference between the two flows. In conclusion, the authors advise not to use method (3) for the calculation of k coefficient. See irrd abstract no. 54845. A translation of this Russian article into French is available at the LCPC, as traduction 72T29. /TRRL/

• Authors:
  • Berezkina, G M
  • Snegovaya, S E
• Publication Date: 1970

Language

• Russian

Media Info

• Features: References;
• Pagination: p. 8-12
• Serial:
  • Vsegingeo Ministerstvo Geologii SSSR, Trudy
  • Volume: 31

Subject/Index Terms

• TRT Terms: Calculation; Clay; Flow; Illites; Kaolinite; Laboratory tests; Oedometers; Permeability; Permeability coefficient
• Uncontrolled Terms: Steady flow
• ITRD Terms: 6464: Calculation; 4177: Clay; 6410: Coefficient; 9006: Continuous; 5430: Flow (fluid); 4332: Hydrology; 4196: Illite; 4189: Kaolinite; 6168: Oedometer; 5921: Permeability; 4156: Soil; 5755: Soil mechanics; 6255: Test; 8538: Translation
• Subject Areas: Geotechnology; Highways;

Filing Info

• Accession Number: 00125194
• Record Type: Publication
• Source Agency: Laboratoire Central des Ponts et Chausees (LCPC)
• Files: ITRD, TRIS
• Created Date: Nov 18 1975 12:00AM