High-Density Bentonite Slurry for Seepage Barriers
Publication: Journal of Materials in Civil Engineering
Volume 17, Issue 2
Abstract
Bentonite slurry without cement is used for seepage barriers such as slurry trenches or grouting, but the sodium-bentonite content in the slurry cannot be increased to more than . Slurry with such low bentonite content is not enough to achieve impermeability of the slurry walls or grouting. Using hydrophilic solvents such as ethanol can depress the bentonite swelling, and the liquid limit can be decreased to less than 100%. Therefore ethanol is used for the mixing liquid when preparing the slurry, and the bentonite concentration can be increased to more than in the slurry state. Ethanol/bentonite slurry can be grouted to small spaces with sufficient cutoff performance. This paper reports the high potential of ethanol/bentonite slurry for seepage barriers based on the following characteristics: low permeability, smooth groutability, and sealing ability with the substitution of ethanol with water. The high potential of ethanol/bentonite slurry for grouting was confirmed through the filling tank test.
Get full access to this article
View all available purchase options and get full access to this article.
References
Asada, M., Ogawa, S., Kamimura, K., Ishikawa, K., and Horiuchi, S. (2001). “High density bentonite slurry using ethanol (no. 1)—Model test of cutoff walls and grouting for seepage barriers.” Technical Research Rep. of Shimizu Corporation, Tokyo 74, 21–32.
Chapuis, R. P. (1990). “Sand-bentonite liners: Predicting permeability from laboratory tests.” Can. Geotech. J., 27, 47–57.
Egloffstein, T. (1995). “Properties and test methods to assess bentonite used in geosynthetic clay liners.” Geosynthetic clay liners, A. Balkema, Rotterdam, The Netherlands, 51–72.
Horiuchi, S., and Asada, M. (2001). “Viscosity and zeta-potential of ethanol/bentonite slurry.” 35th Japan National Conf. on Geotechnical Engineering, Japanese Geotechnical Society, Gifu, Japan, 1269–1270.
Horiuchi, S., Taketsuka, M., Odawara, T., and Kawasaki, H. (1992). “Fly-ash slurry island: I. Theoretical and experimental investigations.” J. Mater. Civ. Eng., 4(2), 117–133.
Kenney, T. C., van Veen, W. A., Swallow, M. A., and Sungaila, M. A. (1992). “Hydraulic conductivity of compacted bentonite-sand mixtures.” Can. Geotech. J., 29, 364–374.
Low, P. F. (1980). “The swelling of clay. II: Montmorillonites.” Soil Sci. Soc. Am. J., 44, 667–676.
Mihara, M. (2000). “The comparison concerned with hydraulic conductivities and effective diffusion coefficients for nuclides between Na and Ca bentonite.” Technical Note 1340, Japan Nuclear Cycle Development Institute, Ibarabi, Japan, 61–68.
Mitchell, J. K. (1993). Fundamentals of soil behaviour, 2nd Ed., Wiley, New York, 122, 312.
Permien, T., and Lagaly, G. (1994). “The rheological and colloidal properties of bentonite dispersions in the presence of organic compounds. III: The effect of alcohols on the coagulation of sodium montmorillonite.” Colloid Polym. Sci., 272, 1306–1312.
Saiki, T. (1997). Alcohol handbook, 9th Ed., Gihodo Shuppan, Tokyo, 10.
Society of Chemical Engineers, Japan (SCEJ). (1999). Chemical engineering handbook, 6th Ed., Tokyo, 286.
Sridharan, A., and Venkatappa Rao, G. (1973). “Mechanisms controlling volume change of saturated clays and the role of the effective stress concept.” Geotechnique, 23(3), 359–382.
Sridharan, A., and Venkatappa Rao, G. (1979). “Shear strength behaviour of saturated clays and the role of the effective stress concept.” Geotechnique, 29(2), 177–193.
Information & Authors
Information
Published In
Journal of Materials in Civil Engineering
Volume 17 • Issue 2 • April 2005
Pages: 178 - 187
Copyright
© 2005 ASCE.
History
Received: Dec 31, 2002
Accepted: Jul 26, 2004
Published online: Apr 1, 2005
Published in print: Apr 2005
Notes
Note. Associate Editor: Braj P. Sinha
Authors
Metrics & Citations
Metrics
Citations
Download citation
If you have the appropriate software installed, you can download article citation data to the citation manager of your choice. Simply select your manager software from the list below and click Download.