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Influence of drying on the liquid limit behaviour of a marine clay

Rao, SM and Sridharan, A and Chandrakaran, S (1989) Influence of drying on the liquid limit behaviour of a marine clay. In: Geotechnique, 39 (4). pp. 715-719.

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The possible mechanisms of particle aggregation and reduction in liquid limit of the Cochin marine clay on drying are investigated. Mineralogical analysis showed the absence of halloysite in the marine specimen. Experimental results also ruled out the possibility of cementitious material being responsible for particle aggregation and reduction in clay plasticity on drying. The presence of calcium and magnesium as the predominant exchangeable ions and of a high pore salt concentration facilitates strong interparticle attraction and small particle separations; the latter leads to development of significant capillary stresses that permits an intimate contact of particles and growth of strong van der Waals' and Coulombic bonds.

Item Type: Editorials/Short Communications
Publication: Geotechnique
Publisher: Thomas Telford
Additional Information: Copyright of this article belongs to Thomas Telford.
Keywords: clays; chemical properties; temperature; Atterberg limits
Department/Centre: Division of Mechanical Sciences > Civil Engineering
Date Deposited: 20 Jul 2010 07:16
Last Modified: 03 Aug 2011 05:39
URI: http://eprints.iisc.ac.in/id/eprint/30339

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