Stewart, D.I., Tay, Y.Y. and Cousens, T.W. (2001) The strength of unsaturated bentonite-enhanced sand. Geotechnique, 51 (9). pp. 767-775. ISSN 0016-8505Full text available as:
Available under licence : See the attached licence file.
A modification to Rowe’s stress-dilatancy equation is presented that extends its range of application to include unsaturated soil behaviour. The results of a programme of constant water content triaxial tests on unsaturated bentonite-enhanced sand (BES) are reported, together with those of a programme of saturated drained triaxial tests on the sand. It is shown that the variation in the rate of dilation at failure with the sand relative density is similar for the two materials. It is proposed that the packing and friction angle of the sand particles and the degree of saturation control the shear strength of unsaturated BES containing modest amounts of bentonite, and that the shear strength of the bentonite component can be ignored.
|Copyright, Publisher and Additional Information:||© The Authors and the Institution of Civil Engineers 2001|
|Keywords:||cut-off walls and barriers; friction; laboratory tests; partial saturation; shear strength; suction|
|Institution:||The University of Leeds|
|Academic Units:||The University of Leeds > Faculty of Engineering (Leeds) > School of Civil Engineering (Leeds)
The University of Leeds > Faculty of Engineering (Leeds) > School of Civil Engineering (Leeds) > Inst for Pathogen Control Engineering (Leeds)
|Depositing User:||Douglas I Stewart|
|Date Deposited:||17 Jul 2006|
|Last Modified:||06 Jun 2014 01:17|