Community Research and Development Information Service - CORDIS


For the option of a deep geological repository for high level radioactive waste, several potential sources of gases were identified (ie the anaerobic corrosion of iron, the degradation of organic materials, the generation by gamma radiolysis and the gas present as such in the waste packages). Of those gases, hydrogen would potentially be released in the largest amount. For the safety evaluation of a repository, it is necessary to know the effects of gases on the host rock. The primary objective of the project was to understand the consequences of gas generation in a clay host rock. The final objective is to validate a gas migration model and to confirm this using an in situ gas injection experiment. The following phenomena have been considered: chemical reaction, diffusion, two-phase flow and the creation of preferential pathways. This report gives an overview of the results of the modelling and experimental work performed during phase 2 of the project.

Additional information

Authors: ORTIZ L ET AL, SCK/CEN, Mol (BE);HORSEMAN S T ET AL, BGS, Keyworth (GB);IMPEY M ET AL, Quantisci, Henley-on-Thames (GB)
Bibliographic Reference: EUR 17453 EN (1997) 155pp., FS, ECU 28
Availability: Available from the (2)
ISBN: ISBN 92-827-9047-9
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