Interparticle Action and Rheology of Dispersive Clays

by Raymond N.Y. Yong, (M.ASCE), Dir.; Geotechnical Research Centre, McGill Univ., Montreal, Quebec, Canada,
Mary A. Jorgensen, Research Asst.; Geotechnical Research Centre, McGill Univ., Montreal, Quebec, Canada,
Harald P. Ludwig, Research Asst.; Geotechnical Research Centre, McGill Univ., Montreal, Quebec, Canada,
Amar J. Sethi, Research Assoc.; Geotechnical Research Centre, McGill Univ., Montreal, Quebec, Canada,


Serial Information: Journal of the Geotechnical Engineering Division, 1979, Vol. 105, Issue 10, Pg. 1193-1209


Document Type: Journal Paper

Abstract: The determination of the various interacting parameters in the phenomenon of clay soil dispersibility needs consideration of pore fluid chemistry, mineralogy and proportions of clay minerals, and resultant particle interaction. The need to develop an appreciation of soil dispersibility in view of the preceding has resulted in the examination of clay particle interaction with respect to the effects and influence of various salts, and in particular, the potential determining anions on the dispersive performance of certain clays. Various concentrations of NaCl, NaHCO3 and 15 meq/L NaOH were used in the preparation of soils consisting of kaolinite, illite, montmorillonite, and mixtures of these clay minerals, with primary attention paid to kaolinite for the development of particle-interaction models for evaluation in terms of a flocculation-deflocculation status through a study of their rheological properties, light transmission, zeta potential, and adsorption-desorption phenomena.

Subject Headings: Clays | Particles | Minerals | Soil mixing | Model analysis | Rheology | Parameters (statistics)

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