Hostname: page-component-586b7cd67f-tf8b9 Total loading time: 0 Render date: 2024-11-25T18:27:56.822Z Has data issue: false hasContentIssue false
  • English
  • Français

Consolidation of Ethanol/Bentonite Slurry Injected in a Planar Fracture; Mathematical Modelling and Experiment

Published online by Cambridge University Press:  21 March 2011

Hiroyasu Takase ,
Kengo Iwasa ,
Takashi Ishii ,
Hiroyoshi Ueda ,
Yasushi Sakabe  and
Katsuhiko Ishiguro
Hiroyasu Takase
Affiliation:
Quintessa Japan
Kengo Iwasa
Affiliation:
Shimizu Corporation, Japan
Takashi Ishii
Affiliation:
Shimizu Corporation, Japan
Hiroyoshi Ueda
Affiliation:
Nuclear Waste Management Organization of Japan
Yasushi Sakabe
Affiliation:
Nuclear Waste Management Organization of Japan
Katsuhiko Ishiguro
Affiliation:
Nuclear Waste Management Organization of Japan
Get access

Abstract

Ethanol/bentonite slurry is an alternative to the conventional cement-based material that may cause chemical disturbances to the host rock and the buffer material. In this study we carried out an experiment in which the ethanol/bentonite slurry was injected into a planar synthetic fracture at a constant rate. The pressure build-up due to the increase in viscosity of the bentonite ethanol slurry was observed and, eventually, consolidation of the slurry led to termination of the injection. A mathematical model was also developed to simulate the advection, dispersion and matrix dispersion of ethanol that contributed to the increase in viscosity of the ethanol/bentonite slurry, together with a Stoke's flow of the slurry before consolidation. Furthermore, applicability of the ethanol/bentonite slurry as a grouting material in a range of geological settings is discussed based on the result of a case study using the same model.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 932: Symposium – Scientific Basis for Nuclear Waste Management XXIX , 2006 , 107.1
Copyright
Copyright © Materials Research Society 2006

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

REFERENCES

Acheson, D.J., 1990, Elementary Fluid Dynamics, Oxford University Press.Google Scholar
Asada, M., 2003, Study on impermeable clay liner using ethanol and bentonite, PhD thesis, University of Tokyo (in Japanese).Google Scholar
Japan Alcohol Association, 2000, R&D report on technology for constructing impermeable clay liner using alcohol, JAA-B9930 (in Japanese).Google Scholar
Japan Nuclear Cycle Development Institute, 2000, H12 Project to Establish Technical Basis for HLW Disposal in Japan, Supporting Report 2; Repository Design and Engineering Technology, JNC TN1400 99-012.Google Scholar
Metcalfe, R., and Walker, C., ed., 2004, Proceedings for International Workshop on Bentonite-Cement Interaction in Repository Environments, NUMO Technical Report.Google Scholar
Mezger, T., 2002, The Rheology Handbook; For users of rotational and oscillatory rheometers, Vincentz.Google Scholar