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Effect of γ-Radiation on the Microstructure and Microchemistry of ggbfs/OPC Cemet Blends

Published online by Cambridge University Press:  21 February 2011

I.G. Richardson ,
G.W. Groves  and
C.R. Wilding
I.G. Richardson
Affiliation:
Department of Metallurgy and Science of Materials, University of Oxford, Parks Road, Oxford OXI 3PH, U.K.
G.W. Groves
Affiliation:
Department of Metallurgy and Science of Materials, University of Oxford, Parks Road, Oxford OXI 3PH, U.K.
C.R. Wilding
Affiliation:
Materials Development Division, U.K.A.E.A. Harwell Laboratory, OXll ORA, U.K.
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Abstract

Ground granulated blast-furnace slag (ggbfs)/OPC blends are among the materials being considered as possible encapsulating matrices for low and intermediate level radioactive wastes. It is therefore desirable to identify any microstructural modifications which may result in these systems frmn exposure to ionizing radiations. In order to investigate this, ggbfs/COC blends were γ-irradiated to >80M3y at 50°C over a period of 2 years. These were examined by electron optical, X-ray and thermal analysis techniques and the results ccmpared with controls subjected to a similar hydration regime. The morphological and ccmpositional similarities and differences revealed between the irradiated and control samples are presented and discussed.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 176: Symposium U – Scientific Basis for Nuclear Waste Management XIII , 1989 , 31
Copyright
Copyright © Materials Research Society 1990

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References

REFERENCES

1. Groves, G.W., LeSueur, P.J. and Sinclair, W., J. Am. Ceram. Soc. 69, 353 (1986).Google Scholar
2. Richardson, I.G., Wilding, C.R. and Dickson, M.J., Submitted to Advances in Cement Research, 1989.Google Scholar
3. Groves, G.W., Mater. Res. Soc. Proc. 85, 3 (1987).Google Scholar
4. Richardson, I.G., Groves, G.W. nd Rodger, S.A., Mater. Res. Soc. Proc. 137, (1988).Google Scholar