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Thermal Behaviour of Backfill Material for a Nuclear Fuel Waste Disposal Vault

Published online by Cambridge University Press:  21 February 2011

R.N. Yong ,
A.M.O. Mohamed  and
S.C.H. Cheung
R.N. Yong
Affiliation:
Geotechnical Research Centre, McGill University, 817 Sherbrooke St., W., Montreal, Quebec, CanadaH3A 2K6
A.M.O. Mohamed
Affiliation:
Geotechnical Research Centre, McGill University, 817 Sherbrooke St., W., Montreal, Quebec, CanadaH3A 2K6
S.C.H. Cheung
Affiliation:
Atomic Energy Of Canada Limited, Whiteshell Research Establishment Pinawa, Manitoba, Canada, ROE 1L0
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Abstract

The concept of disposing of used nuclear fuel in engineered rock formations is being studied in the Canadian Nuclear Fuel Waste Management Program. After the used fuel is emplaced in the vault, the vault would be backfilled. The backfill has to satisfy a number of engineering requirements. A reference backfill with satisfactory hydraulic, thermal and mechanical properties has already been selected.

As the used fuel in the waste containers decays, heat will be generated and this heat will raise the temperature of the backfill material. The performance of the reference backfill material was evaluated over the temperature range 20–100°C. This paper addresses the results of experiments on thermal response and pressure development in the backfill for the period shortly after vault closure.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 176: Symposium U – Scientific Basis for Nuclear Waste Management XIII , 1989 , 649
Copyright
Copyright © Materials Research Society 1990

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References

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