Influence of Cations on Compressibility Behavior of a Marine Clay
Publication: Journal of Geotechnical and Geoenvironmental Engineering
Volume 123, Issue 11
Abstract
The type of cations present in the adsorbed double layer of any clayey soil can significantly control the soil's compressibility. This technical note examines the influence of exchangeable cations on the compressibility of a marine clay. An experimental investigation of the compressibility properties of marine clays with a series of monovalent, divalent, and trivalent cations revealed large differences in behavior. The exchangeable cations employed in this study were sodium (Na+), potassium (K+), ammonium magnesium (Mg2+), calcium (Ca2+), and aluminum (Al3+) in order of increasing valency. The results indicate that the compressibility properties are significantly affected by the valence and size of the adsorbed cations. An increase in valency leads to a reduction in compression index, and at a constant valency an increase in the hydrated radii of the adsorbed cations resulted in an increase in compressibility. Further, it has been found that preconsolidation pressure increases with valency of the cations.
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References
1.
Carroll, D., and Starkey, H. C. (1958). “Effect of sea-water on clay minerals.”Proc., 7th Nat. Conf. on Clays and Clay Minerals, 80–101. Index to the powder diffraction file . (1991). Joint Com. on Powder Diffraction Standards, ASTM, Philadelphia, Pa.
2.
Jackson, M. L. (1967). Soil chemical analysis. Prentice-Hall Int. Inc., London, U.K.
3.
Kielland, J. (1937) J. of Am. Chem Soc., 59, 1675.
4.
Mitchell, J. K. (1976). Fundamentals of soil behavior. John Wiley & Sons, Inc., New York, N.Y.
5.
Olson, R E., and Mesri, G. (1970). “Mechanism controlling compressibility of clays.” ASCE, J. Soil Mech. and Found. Div., 96(SM6), 1863–1878.
6.
Sridharan, A., and Rao, G. V.(1973). “Mechanisms controlling volume change of saturated clays and the role of effective stress concept.”Geotechnique, 23(3), 359–382.
7.
Sridharan, A., Rao, S. M., and Murthy, N. S.(1986). “Compressibility behavior of homoionized bentonite.”Geotechnique, 36(4), 551–564.
8.
“Standard test method for one dimensional consolidation properties of soils,” ASTM D 2435-80. (1989). Annual Book of ASTM Standards, 04-08, ASTM, Philadelphia, Pa., 283–287.
9.
Van Olphen, H. (1963). An introduction to clay colloid chemistry. Interscience Publishers, New York, N.Y.
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Copyright © 1997 American Society of Civil Engineers.
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Published online: Nov 1, 1997
Published in print: Nov 1997
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