Clays and Clay Minerals, Vol. 54, No. 1, 29-37, 2006.
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Authors
Laribi, Saoussen
Fleureau, Jean-Marie
Grossiord, Jean-Louis
Kbir-Ariguib, Nejia
Issue Date
2006
Type
Article
Language
en_US
Keywords
Periodicals , Aqueous Clay Suspensions , Flow Properties , Ionic Strength , pH , Yield Stress
Alternative Title
Effect of pH on the Rheological Behavior of Pure and Interstratified Smectite Clays.
Abstract
The effects of pH and ionic strength on the rheological behavior of aqueous suspensions of both crude and purified Wyoming bentonite and natural interstratified illite-smectite from Tunisia were investigated. Flow tests were performed on the four clay suspensions at a 10% clay concentration at different pH values. They showed that the rheological properties were highly sensitive to pH and the nature of the clay. The evolution of the yield stress as a function of pH is characterized by the presence of maxima and minima attributed to changes in the mode of association of the particles. The effect of pH on the behavior of clay suspended in NaCl solutions was also studied. The results show that the presence of NaCl has very little effect on the pH and yield stress values of the four materials.
Description
Clays and Clay Minerals, Vol. 54, No. 1, 29-37, 2006.
Effect of pH on the Rheological Behavior of Pure and
Interstratified Smectite Clays.
Saoussen Laribi; Jean-Marie Fleureau; Jean-Louis Grossiord; Nejia Kbir-Ariguib;
DOI: 10.1346/CCMN.2006.0540104
Copyright © 2006, The Clay Minerals Society
Citation
Clays and Clay Minerals, Vol. 54, No. 1, 29-37, 2006.
Publisher
The Clay Minerals Society
License
Copyright © 2006-2018, The Clay Minerals Society