Microstructure and anisotropic swelling behaviour of compacted bentonite/sand mixture

Journal of Rock Mechanics and Geotechnical Engineering

Volumn 6, Issue 2, 2014, Pages 126-132

  Saba, Simona ^a,b   Barnichon, Jean Dominique ^a   Cui, Yu Jun ^a   Tang, Anh Minh ^a   Delage, Pierre ^a  

^a UNIVERSITÉ PARIS EST   (France)

^b INSTITUT DE RADIOPROTECTION ET DE SÛRETÉ NUCLÉAIRE IRSN   (France)

Author keywords

Anisotropy; Bentonite sand mixture; Microfocus X ray computed tomography ( CT); Microstructure; Nuclear waste disposal; Swelling pressure

Indexed keywords

ANISOTROPY; BENTONITE; MICROSTRUCTURE; RADIOACTIVE WASTE; SEALING; SWELLING; TOMOGRAPHY; WASTE DISPOSAL; WASTE MANAGEMENT;

EID: 84907329864     PISSN: 16747755     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.jrmge.2014.01.006     Document Type: Article

References (36)

1. Agus S.S. An experimental study on hydro-mechanical characteristics of compacted bentonite-sand mixtures 2005, PhD Thesis, Bauhaus University Weimar, Weimar.
2. Agus S.S., Schanz T. Effect of shrinking and swelling on microstructures and fabric of a compacted bentonite-sand mixture. Proceedings of the international conference on problematic soils 2005, 543-550. Eastern Mediterranean University, Gazimaǧusa, Cyprus.
3. Barnichon J.D., Dick P., Bauer C. The SEALEX in situ experiments: performance test of repository seals. Harmonising rock engineering and the environment 2012, 1391-1394. Taylor & Francis Group, London. Q.H. Qian, Y.X. Zhou (Eds.).
4. Börgesson L., Karnland O., Johanneson L.E. Modelling of the physical behaviour of clay barriers close to water saturation. Engineering Geology 1996, 41(1-4):127-144.
5. Cho W.J., Lee J.O., Kang C.H. Influence of temperature elevation on the sealing performance of a potential buffer material for a high-level radioactive waste repository. Annals of Nuclear Energy 2000, 27(4):1271-1284.
6. Comina C., Foti S., Musso G., Romero E. EIT oedometer: an advanced cell to monitor spatial and time variability in soil. Geotechnical Testing Journal 2008, 31(5):404-412.
7. Cui Y.J., Loiseau C., Delage P. Microstructure changes of a confined swelling soil due to suction controlled hydration. Unsaturated soils, proceedings of the third international conference on unsaturated soils (UNSAT 2002) 2002, 593-598. Swets & Zeitlinger, Lisse.
8. Delage P., Marcial D., Cui Y.J., Ruiz X. Ageing effects in a compacted bentonite: a microstructure approach. Géotechnique 2006, 56(5):291-304.
9. Delage P., Howat M.D., Cui Y.J. The relationship between suction and swelling properties in a heavily compacted unsaturated clay. Engineering Geology 1998, 50(1/2):31-48.
10. Dixon D.A., Gray M.N., Thomas A.W. A study of the compaction properties of potential clay-sand buffer mixtures for use in nuclear fuel waste disposal. Engineering Geology 1985, 21(3/4):247-255.
11. Gebrenegus T., Tuller M., Muhuthan B. The application of X-ray computed tomography for characterisation of surface crack networks in bentonite-sand mixtures. Advances in X-ray tomography for geomaterials 2006, 207-212. ISTE Ltd., London. J. Desrues, G. Viggiani, P. Bésuelle (Eds.).
12. Karnland O., Olsson S., Nilsson U. Mineralogy and sealing properties of various bentonites and smectite-rich clay material 2006, Swedish Nuclear Fuel and Waste Management Company (SKB).
13. Kawaragi C., Yoneda T., Sato T., Kaneko K. Microstructure of saturated bentonites characterized by X-ray CT observations. Engineering Geology 2009, 106(1/2):51-57.
14. Ketcham R.A., Carlson W.D. Acquisition, optimization and interpretation of X-ray computed tomographic imagery: applications to the geosciences. Computers & Geosciences 2001, 27(4):381-400.
15. Komine H., Ogata N. Experimental study on swelling characteristics of compacted bentonite. Canadian Geotechnical Journal 1994, 31(4):478-490.
16. Komine H., Ogata N. New equations for swelling characteristics of bentonite-based buffer materials. Canadian Geotechnical Journal 2003, 40(2):460-475.
17. Komine H., Ogata N. Predicting swelling characteristics of bentonites. Journal of Geotechnical and Geoenvironmental Engineering 2004, 130(8):818-829.
18. Komine H., Yasuhara K., Murakami S. Swelling characteristics of bentonites in artificial seawater. Canadian Geotechnical Journal 2009, 46(2):177-189.
19. Kozaki T., Suzuki S., Kozai N., Sato S., Ohashi H. Observation of microstructures of compacted bentonite by microfocus X-ray computerized tomography (Micro-CT). Journal of Nuclear Science Technology 2001, 38(8):697-699.
20. Lee J.O., Cho W.J., Chun K.S. Swelling pressures of a potential buffer material for high-level waste repository. Journal of the Korean Nuclear Society 1999, 31(2):139-150.
21. Lee J.O., Lim J.G., Kang I.M., Kwon S. Swelling pressures of compacted Ca-bentonite. Engineering Geology 2012, 129-130:20-26.
22. Lloret A., Villar M.V., Sanchez M., Gens A., Pintado X., Alonso E.E. Mechanical behaviour of heavily compacted bentonite under high suction changes. Géotechnique 2003, 53(1):27-40.
23. Lloret A., Villar M.V. Advances on the knowledge of the thermo-hydro-mechanical behaviour of heavily compacted "FEBEX" bentonite. Physics and Chemistry of the Earth, Parts A/B/C 2007, 32(8-14):701-715.
24. Madsen F.T. Clay mineralogical investigations related to nuclear waste disposal. Clay Minerals 1998, 33(1):109-129.
25. Montes-Hernandez G. Etude expérimentale de la sorption d'eau et du gonflement des argiles par microscopie électronique à balayage environnementale (ESEM) et analyse digitale d'images 2002, PhD Thesis, Université Louis Pasteur, Strasbourg, France.
26. Mukunoki T., Otani J., Maekawa A., Camp S., Gourc J.P. Investigation of crack behaviour on cover soils at landll using X-ray CT. Advances in X-ray tomography for geomaterials 2006, 213-219. ISTE Ltd., London. J. Desrues, G. Viggiani, P. Bésuelle (Eds.).
27. Pusch R. Mineral-water interactions and their influence on the physical behavior of highly compacted Na bentonite. Canadian Geotechnical Journal 1982, 19(3):381-387.
28. Rasband W.S. ImageJ 1997-2012, U.S. National Institutes of Health, Bethesda, USA. http://imagej.nih.gov/ij/.
29. Saba S., Delage P., Lenoir N., Cui Y.J., Tang A.M., Barnichon J.D. A further insight into the microstructure of compacted bentonite-sand mixture. Engineering Geology 2014, 168:141-148.
30. Tang A.M., Cui Y.J., Barnel N. Thermo-mechanical behaviour of a compacted unsaturated swelling clay. Géotechnique 2008, 58(1):45-54.
31. Tang C.S., Tang A.M., Cui Y.J., Delage P., Schroeder C., De Laure E. Investigating the swelling pressure of compacted crushed-Callovo-Oxfordian argillite. Physics and Chemistry of the Earth 2011, 36(17/18):1857-1866.
32. Van Geet M., Volckaert G., Roels S. The use of microfocus X-ray computed tomography in characterising the hydration of a clay pellet/powder mixture. Applied Clay Science 2005, 29(2):73-87.
33. Villar M.V., Lloret A. Variation in the intrinsic permeability of expansive clays upon saturation. Clay science for engineering 2001, 259-266. A.A. Balkema, Rotterdam. K. Adachi, M. Fukue (Eds.).
34. Wang Q., Tang A.M., Cui Y.J., Delage P., Gatmiri B. Experimental study on the swelling behaviour of bentonite/claystone mixture. Engineering Geology 2012, 124:59-66.
35. Wang Q., Tang A.M., Cui Y.J., Delage P., Barnichon J.D., Ye W.M. The effects of technological voids on the hydro-mechanical behaviour of compacted bentonite-sand mixture. Soils and Foundations 2013, 53(2):232-245.
36. Yong R.N., Boonsinsuk P., Wong G. Formulation of backfill material for a nuclear fuel waste disposal vault. Canadian Geotechnical Journal 1986, 23(2):216-228.