Hostname: page-component-586b7cd67f-dsjbd Total loading time: 0 Render date: 2024-11-25T17:56:46.463Z Has data issue: false hasContentIssue false
  • English
  • Français

Mass Transport of Multicomponents Solute in Bentonite Clay

Published online by Cambridge University Press:  21 March 2011

Y. Ichikawa ,
K. Kawamura ,
M. Nakano ,
K. Kitayama ,
N. Saito ,
H. Kawamura  and
S. Yamamoto
Y. Ichikawa
Affiliation:
Nagoya University, Nagoya 464-8603, Japan; Email: [email protected]
K. Kawamura
Affiliation:
Tokyo Institute of Technology, Tokyo 152-8551, Japan; Email: [email protected]
M. Nakano
Affiliation:
Kobe University, Nada-ku, Kobe 657-8501, Japan; Email: [email protected]
K. Kitayama
Affiliation:
Tokyo Electric Power Co., Chiyoda-ku, Tokyo 100-0011, Japan
N. Saito
Affiliation:
Tokyo Electric Power Co., Chiyoda-ku, Tokyo 100-0011, Japan
H. Kawamura
Affiliation:
Obayashi Co., Minato-ku, Tokyo 108-8502, Japan
S. Yamamoto
Affiliation:
Obayashi Co., Minato-ku, Tokyo 108-8502, Japan
Get access

Abstract

A fundamental concept combining a molecular behavior and macro-continuum phenomenon is presented for a multicomponent solute diffusion problem in bentonite clay, which is a key component of the Engineering Barrier System (EBS) of high-level radioactive waste disposal (HLRW). Bentonite is a micro-inhomogeneous material. Properties of the saturated bentonite are characterized by the constituent clay mineral (montmorillonite) and water, namely montmorillonite hydrate. We analyze its molecular behavior by applying a molecular dynamics (MD) simulation to inquire into the physicochemical properties such as diffusivity of chemical species. For extending the microscopic characteristics of constituent materials to a macroscopic diffusion behavior of the micro-inhomogeneous material we apply a homogenization analysis (HA).

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 663: Symposium – Scientific Basis for Nuclear Waste management XXIV , 2000 , 617
Copyright
Copyright © Materials Research Society 2001

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

1. Ichikawa, Y., Kawamura, K., Nakano, M., Kitayama, K., Kawamura, H. (1999): “Unified molecular dynamics and homogenization analysis for bentonite behavior”, Engineering Geology, 54, 21–31.Google Scholar
2. Kawamura, K., Ichikawa, Y., Nakano, M., Kitayama, K., Kawamura, H. (1997): “New approach for predicting the long term behavior of bentonite”, Proc.Sci.Basis for Nuclear Waste Management XXI, Davos, Swizerland, Material Research Society, Warrendale PA, 359–366.Google Scholar
3. Sanchez-Palencia, E. (1980); Non-Homogeneous Media and Vibration Theory, Springer-Verlag.Google Scholar