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Natural, Thermal and Radiolytical Gas Liberation in Rock Salt as a Result of Disposed High-Level Radioactive Waste

Published online by Cambridge University Press:  28 February 2011

Norbert Jockwer  and
Sabine Gross
Norbert Jockwer
Affiliation:
Gesellschaft für Strahlen- und Umweltforschung mbH München, Institut für Tieflagerung, Theodor-Heuss-Strasse 4, D-3300 Braunschweig, Federal Repub-lic of Germany
Sabine Gross
Affiliation:
Gesellschaft für Strahlen- und Umweltforschung mbH München, Institut für Tieflagerung, Theodor-Heuss-Strasse 4, D-3300 Braunschweig, Federal Repub-lic of Germany
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Abstract

Rock salt contains crystal water of the hydrated minerals, water in the form of brine inclusions or adsorbed to the crystal boundaries, as well as primary gases. Further gases are produced or liberated due to the disposed high-level, heat producing wastes resulting from the thermal and radiolytic decomposition of the main and secondary constituents.

All volatile components which are present in a final repository have an influence on the disposal horizon, promote the spreading of possibly liberated radionuclides, increase corrosion of the containment and may lead to a pressure increase in a disposal borehole. Therefore a qualita-tive and quantitative determination of the components which could be lib-erated from the rock salt as a result of the disposal of high-level wastes is of significance for a final repository.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 50: Symposium STOCKHOLM – Scientific Basis for Nuclear Waste Management IX , 1985 , 587
Copyright
Copyright © Materials Research Society 1985

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