Journal Published Online: 01 March 1995
Volume 18, Issue 1

Permeability and Compressibility Behavior of Bentonite-Sand/Soil Mixes



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.

Author Information

Pandian, NS
Indian Institute of Science, Bangalore, India
Nagaraj, TS
Indian Institute of Science, Bangalore, India
Raju, PSRN
Indian Institute of Science, Bangalore, India
Pages: 8
Price: $25.00
Reprints and Permissions
Reprints and copyright permissions can be requested through the
Copyright Clearance Center
Stock #: GTJ10124J
ISSN: 0149-6115
DOI: 10.1520/GTJ10124J