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Permeability and Compressibility Behavior of Bentonite-Sand/Soil Mixes

Pandian, NS and Nagaraj, TS and Raju, PSRN (1995) Permeability and Compressibility Behavior of Bentonite-Sand/Soil Mixes. In: Geotechnical Testing Journal, 18 (1). pp. 86-93.

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As a seepage barrier slurry trench material should have a relatively low coefficient of permeability, in the range of 10(-7) cm/s, and at the same time should be compatible with surrounding material with regard to compressibility. Although bentonite-sand/soil mixes are used widely, there is no specific engineering approach to proportion these mixes that satisfies the above practical requirements. In this paper, a generalized approach is presented for predicting the permeability and compressibility characteristics of mixes with minimum input parameters. This approach will be helpful in proportioning mixes and predicting corresponding changes in engineering behavior. It is possible to proportion a mix to arrive at the required compressibility without affecting the permeability. This is explained using an illustrative example.

Item Type: Journal Article
Publication: Geotechnical Testing Journal
Publisher: ASTM International
Additional Information: Copyright of this article belongs to ASTM International.
Department/Centre: Division of Mechanical Sciences > Civil Engineering
Date Deposited: 23 May 2011 09:59
Last Modified: 23 May 2011 09:59
URI: http://eprints.iisc.ac.in/id/eprint/37854

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