Hostname: page-component-78c5997874-mlc7c Total loading time: 0 Render date: 2024-11-03T02:56:08.734Z Has data issue: false hasContentIssue false
  • English
  • Français

Effect of Swelling Pressure on Local Volume Change in Unsaturated Sand-Bentonite Buffer Material

Published online by Cambridge University Press:  15 February 2011

Shooshpasha I ,
Mohamed A.M.O  and
R. N. Yong
Shooshpasha I
Affiliation:
Geotechnical Research Centre, McGill University 817 Sherbrooke St. West, Montreal, Canada H3A 2K6 Onofrei, C. AECL Research, Whiteshell Laboratories, Manitoba, Canada ROE 1L0, Pinawa
Mohamed A.M.O
Affiliation:
Geotechnical Research Centre, McGill University 817 Sherbrooke St. West, Montreal, Canada H3A 2K6 Onofrei, C. AECL Research, Whiteshell Laboratories, Manitoba, Canada ROE 1L0, Pinawa
R. N. Yong
Affiliation:
Geotechnical Research Centre, McGill University 817 Sherbrooke St. West, Montreal, Canada H3A 2K6 Onofrei, C. AECL Research, Whiteshell Laboratories, Manitoba, Canada ROE 1L0, Pinawa
Get access

Abstract

This study was designed to investigate the effect of swelling pressure on local volume changes in unsaturated sand-bentonite based buffer material. A laboratory mixture of sodium bentonite and graded silica sand in equal proportion by dry weight was used in both ambient and elevated temperatures experiments. At high water content locations within the tested specimens, the density was reduced by 3.57% from its initial values due to swelling. The swelling pressure as a function of distance was calculated by 4 different models. The calculated results have indicated that the density distribution within the specimen is affected by swelling potential distribution. The calculated swelling pressure values vary as a function of water content, reaching 1 MPa at the source of water intake, i.e., at high water content zone, and 2 MPa at the heater side, i.e., at low water content zone.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 412: Symposium V – Scientific Basis for Nuclear Waste Management XIX , 1995 , 667
Copyright
Copyright © Materials Research Society 1996

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

[1] Yong, R.N. and Warkentin, B.. Elsevier Scientific-Publishing Company Amsterdam, Oxford, New York, pp. 141–195, 1975.Google Scholar
[2] Mitchell, J.K.. Series in soil engineering, John Wiley, New York, 1976.Google Scholar
[3] Kanno, T. and Wakamatsu, H.. Canadian Geotechnical Journal, Vol.29, pp. 1102–1107, 1992.Google Scholar
[4] Yong, R.N. and Mohamed, A.M.O.. Can. Geotech. J. Vol.29, No. 6, pp. 1060–1070, 1992.Google Scholar
[5] Mohamed, A.M.O., Shooshpasha, I., Yong, R.N., and Onofrei, C.. Material Research Society, Symposium proceeding Vol.333, pp. 925–932, Boston, U.S.A. 1994.Google Scholar
[6] Shooshpasha, I.. Eng, M.. Thesis, Dept. of Civil Engineering and Applied Mechanics, McGill University, Montreal, Canada, P. 136, 1993.Google Scholar
[7] Dixon, D.A., and Gray, M.N.. Proceeding, 17th Information Meeting of Nuclear Fuel Waste Management Program, Toronto, Atomic Energy of canada Limited, Technical report TR-350, Vol.3, pp. 513–530, 1985.Google Scholar
[8] Mohamed, A.M.O., Yong, R.N. and Cheung, S.C.H.. ASTM, Geotech. Testing J., GT JODJ, Vol.15, No. 4, pp. 330–339, 1992.Google Scholar
[9] Abry, D.R.M., Abry, R.G.F., Ticknor, K.V., and Vandergraaf, T.T.. Atomic Energy of Canada Limited, Pinawa, Manitoba, Technical report TR- 189, 1982.Google Scholar
[10] Yong, R.N., Mohamed, A.M.O., and Shooshpasha, I.. Final Report, Atomic Energy of Canada Limited, Pinawa, Manitoba 1994.Google Scholar
[11] Mohamed, A.M.O., Yong, R.N., and Shooshpasha, I.. Progress Report, Prepared for Atomic Energy of Canada Limited, Pinawa, Manitoba, 1995.Google Scholar
[12] Borgesson, L.. Engineering Geology, Vol.21, pp. 229–237, 1985.Google Scholar
[13] Yong, R.N.. Symposium on foundation engineering Indian Institute of Science, Bangalore, India, 1960.Google Scholar