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The Modelling of Gas Migration through Compacted Bentonite Buffers in Radioactive Waste Repositories: the Work of the GAMBIT Club

Published online by Cambridge University Press:  01 February 2011

William R Rodwell ,
Andrew R Hoch  and
Ben T Swift
William R Rodwell
Affiliation:
Serco Assurance, 150 Harwell IBC, Didcot, Oxfordshire OX11 0QJ, UK
Andrew R Hoch
Affiliation:
Serco Assurance, 150 Harwell IBC, Didcot, Oxfordshire OX11 0QJ, UK
Ben T Swift
Affiliation:
Serco Assurance, 150 Harwell IBC, Didcot, Oxfordshire OX11 0QJ, UK
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Abstract

Use of compacted bentonite buffers is frequently planned in radioactive waste repositories to isolate waste canisters from the geological environment. When gas is generated from the wastes or their containers, it will need to migrate through the bentonite if pressure rises local to the canisters are to be avoided. Assessment of the effect of gas produced from waste canisters in bentonite buffers requires both experimental data on and models of gas migration through initially water-saturated bentonite. Several different approaches to modelling gas migration through bentonite are described. Some example comparison of model results with experimental data are provided, and some general discussion about the modelling approaches is offered.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 807: Symposium Scientific Basis for Nuclear Waste Management XXVII , 2003 , 709
Copyright
Copyright © Materials Research Society 2004

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References

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