NEA Mandates and Structures


Working Group on the Characterisation, the Understanding and the Performance of Argillaceous Rocks as Repository Host Formations (CLAY CLUB)

Chair(s): Bastian GRAUPNER, Switzerland
Secretary:  Ichiro OTSUKA
(ichiro.otsuka@oecd-nea.org)
Member(s):All NEA member countries
Full participant(s): European Commission
Under the NEA Statute
Observer(s)(International Organisation): International Atomic Energy Agency (IAEA)
By agreement
Date of creation:01 January 1991
End of mandate:31 December 2018

Mandate (Document reference):

Mandate (Document extract):

Extract from document NEA/RWM/CLAYCLUB(2016)3

2. Mandate

The Clay Club promotes the exchange of information and shared approaches and methods to develop and document an evolving understanding of clay media as a host rock for a repository.

The Clay Club generally establishes the programme of work at its own initiative, based on experience, consensus and progress in repository programmes of its member countries. The work programme and products are presented at each IGSC plenary meeting. The Clay Club may also carry out specific tasks at the request of the IGSC dealing with, for instance, the barrier performance of clays for repository safety case purposes.

General activities

The Clay Club provides advice to the IGSC on major and emerging issues related to the understanding of the multi-scale characterisation, numerical model simulation and barrier performance of argillaceous media.  In particular, the Clay Club addresses recommendations, trends and information gaps concerning issues such as: