Objective An essential item for the long-term safety of high-level waste underground repositories is the backfilling and sealing of access shafts and connection galleries. The main objective of RESEAL II is to demonstrate on a representative scale that the sealing of a shaft i.e. the "experimental" shaft of the HADES underground laboratory, with a low permeability powder/pellets mixture of bentonite avoids preferential migration of water, gas or radionuclides either through the seal of through the excavation disturbed zone around it. The mechanical stability of the seal under accidental overpressure conditions will be also tested. A tracer diffusion in the host clay formation around the seal will allow to study, by modelling, the migration parameters of the excavation disturb ed zone. Hydro-mechanical models will be applied for the interpretation of the test results and consequently to demonstrate our understanding of the seal behaviour. Fields of science natural scienceschemical sciencesnuclear chemistryradiation chemistry Programme(s) FP5-EAECTP C - Research and training programme (Euratom) in the field of nuclear energy (1998 to 2002) Topic(s) 2.1.2.-2.1.3 - Repository technology Call for proposal Data not available Funding Scheme CSC - Cost-sharing contracts Coordinator BELGIAN NUCLEAR RESEARCH CENTRE Address 200,boeretang 200 2400 Mol Belgium See on map EU contribution No data Participants (4) Sort alphabetically Sort by EU Contribution Expand all Collapse all CENTRO DE INVESTIGACIONES ENERGETICAS, MEDIAMBIENTALES Y TECNOLOGICAS Spain EU contribution € 0,00 Address 22,avenida complutense 22 28040 Madrid See on map Other funding No data COMMISSARIAT A L'ENERGIE ATOMIQUE France EU contribution € 0,00 Address Centre d'etudes de saclay 91191 Gif sur yvette See on map Other funding No data NATIONAL RADIOACTIVE WASTE MANAGEMENT AGENCY OF FRANCE France EU contribution € 0,00 Address Rue jean monnet 1-7 92298 Chatenay malabry See on map Other funding No data UNIVERSITAT POLITECNICA DE CATALUNYA Spain EU contribution € 0,00 Address S/n,jordi girona 1-3, modul d2, campus nord 08034 Barcelona See on map Other funding No data
