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in-situ Electrochemical Characterization of Grouted Radioactive Waste

Published online by Cambridge University Press:  01 January 1992

Albert A. Kruger
Affiliation:
Westinghouse Hanford Company, MSIN R4–03, Richland, Washington 99352
Jingyan Gu
Affiliation:
Department of Physics, Brooklyn College, Brooklyn, New York 11210
Micha Tomkiewicz
Affiliation:
Department of Physics, Brooklyn College, Brooklyn, New York 11210
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Abstract

This work is based upon the notion that a grid of electrodes will be incorporated in the slurry of radioactive waste and grout-forming solids. These electrodes will remain in the hardened grout, and will serve to monitor the ionic concentration of the liquids contained within the matrix, the structural integrity of the matrix, and the rates of out-diffusion of the electrolytes. Ultimately, we will investigate four techniques: (1) ionic conductivity, (2) electrochemical potential, (3) cyclic voltammetry, and (4) impedance measurements. Eventually, the results will be correlated with present quality verification methods, which include recovering samples and following the Toxicity Characteristic Leach Procedure (or other such accepted standard tests). This paper presents the preliminary results of a recently initiated effort.

Type
Research Article
Copyright
Copyright © Materials Research Society 1993

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References

REFERENCES

1. Archie, G. E., AIME Trans., 146, 54 (1942).Google Scholar
2. See for example: Bard, A. J. and Faulkner, L. R., Electrochemical Methods, (John Wiley & Sons, 1980).Google Scholar
3. See for example: Bockris, J.O.M and A. Reddy, K. N., Modem Electrochemistry, (Plenum Press, New York, 1970).Google Scholar
4. Sen, P. N., Phys. Rev. B39, 9508 (1989).Google Scholar
5. See for example: Macdonald, J. R., Impedance Spectroscopy, (John Wiley & Sons, 1987);Google Scholar
Tomkiewicz, M., J. Electroch. Soc., 126, 2220 (1979);Google Scholar
Shen, W. M., Aurian-Blajeni, B., Tomkiewicz, M. and Cohen, D., J. Electroch. Soc., 133, 930 (1985).Google Scholar
6. See for example: Pao, Y. H., Adaptive Pattern Recognition and Neural Networks, (Addison-Wesley, 1989).Google Scholar
7. Christensen, B. J., Mason, T. O. and Jennings, H. M., J. Am. Ceram. Soc., 75, No. 3 (1992).Google Scholar
8. Kim, K. B. and Sadoway, D. R., J. Electroch. Soc., 139, 1027 (1992).Google Scholar