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The Effects of Changes in pH within a Clay Surrounding a Cementitious Repository

Published online by Cambridge University Press:  28 February 2011

Nicholas L. Jefferies ,
Cherry J. Tweed  and
Simon J. Wisbey
Nicholas L. Jefferies
Affiliation:
Chemistry Division, Harwell Laboratory, Didcot, Oxfordshire OX11 ORA, UK.
Cherry J. Tweed
Affiliation:
Theoretical Physics Division, Harwell Laboratory, Didcot, Oxfordshire OX11 ORA, UK.
Simon J. Wisbey
Affiliation:
Chemistry Division, Harwell Laboratory, Didcot, Oxfordshire OX11 ORA, UK.
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Abstract

The effect of a concrete-based repository on local geological conditions and properties has been explored. As part of a complete description of repository behaviour, a static model of clay-alkali interactions has been set up. Parallel experiments have demonstrated the buffering capacity of clays, and are indicating the chemical and physical changes that may occur when an alkali plume interacts with a clay host rock.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 112: Symposium P – Scientific Basis for Nuclear Waste Management XI , 1987 , 43
Copyright
Copyright © Materials Research Society 1988

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