Time: Tuesday, 26/Nov/2024: 1:30pm - 2:30pm |
Location: Eilenriedehalle A |
Microstructural Examination of Gas Migration Influence in Heterogeneous Pellet/Powder Bentonite Mixtures Using X-ray Computed Micro-Tomography
Institut de Radioprotection et de Sûreté Nucléaire (IRSN), PSE-ENV/SPDR/LETIS, Fontenay-aux-Roses, F-92260, France
ID: 133
Suitability investigations of Lithuanian clay formations for the deep geological repository of radioactive wastes
Lithuanian geological survey, Lithuania
Modelling of unsaturated homogenisation with an enhanced bentonite material model using COMSOL Multiphysics
Clay Technology, Sweden
CEC as quality proof for smectitic phases in lower Cretaceous clay rocks – illite-smectite ± pure smectite?
1BGR, Germany; 2LBEG, Germany
Multi-scale 2D and 3D characterisation for enhanced understanding of UK lower strength sedimentary rocks.
University of Manchester, United Kingdom
ID: 243
Unravelling the depositional model of the Opalinus Clay using grain-size variability
1Department of Geosciences, University of Fribourg, Fribourg, Switzerland; 2Institute of Geological Sciences, University of Bern, Bern, Switzerland; 3Nagra (National Cooperative for the Disposal of Radioactive Waste), Wettingen, Switzerland; 4Federal Institute for Geosciences and Natural Resources (BGR), Hannover, Germany
Influence of texture on the chloride accessible porosity fraction explored by SEM and µCT data
1University of Bern, Switzerland; 2Paul Scherrer Institut, Switzerland; 3Nagra, Switzerland
Exploring the dynamics of aquifer - aquitard systems: new insights from 81Kr model ages
1Nagra, Wettingen, Switzerland; 2Hydroisotop GmbH, Schweitenkirchen, Germany; 3University of Bern, Bern, Switzerland; 4WaterGeoChem Consulting, Bern, Switzerland
Mont Terri BIM — Project overview and technical realisation
1Swiss Federal Office of Topography (swisstopo), St-Ursanne, Switzerland; 2Swiss Federal Office of Topography (swisstopo), Wabern, Switzerland
Geochemistry and pore water in the lower confining units of the Opalinus Clay at Mont Terri Rock Laboratory (Switzerland)
1CIEMAT, Spain; 2BRGM, France; 3Swisstopo, Switzeland; 4Helmholtz-Zentrum Potsdam, Germany
Underground storage of high-grade radioactive waste in mudrock: In search of the Holy Grail
University of Greifswald, Germany
Development and Emplacement of an Annular Grout Envisaged for HLW Emplacement Drifts to Study Long-Term Interaction with Opalinus Clay
1Nagra, Switzerland; 2Master Builders Solutions Deutschland GmbH, Trostberg, Germany; 3Master Builders Solutions Schweiz AG, Holderbank, Switzerland
Monitoring fluid movement and swelling pressure development in semi-technical scale Sandwich sealing system experiments
1TU Bergakademie Freiberg, Germany; 2Karlsruhe Institute of Technology, Germany; 3ISU mbH, Germany
ID: 385
3D Hydro-Mechanical modelling to support the design of the REG experiment in the Callovo-Oxfordian Claystone
1University of Liège, Belgium; 2Andra, France
Development of Boron-Enhanced Metakaolin-Based Geopolymers for the Immobilisation of Radioactive Debris with the potential of Neutron Absorption
Hokkaido University, Japan
ID: 205
Performance of MoxOy pH sensor prepared by thermal oxidation for the long term monitoring of nuclear waste disposals
1BRGM (French Geological Survey), Orleans, France; 2ANDRA (French national radioactive waste management agency), Châtenay-Malabry, France; 3ICMMO (Institute of Molecular Chemistry and Materials), Orsay, France
Cation exchange capacity measurement for bentonite-cement reactions in a nuclear waste disposal - what are we really measuring?
1Institute of Geological Sciences, Polish Academy of Sciences, Krakow, Poland; 2tate Authority for Mining, Energy and Geology (LBEG), Hannover, Germany; 3Federal Institute for Geosciences and Natural Resources (BGR), Hannover, Germany
ID: 441
Influence of microstructure and pore saturation in measuring corro-sion rates of a carbon steel API 5L X65 in contact with cement grout in future nuclear waste disposal program
1BRGM, France; 2ANDRA, France; 3LGC, France
ID: 245
Differentiation of fractures and rock mass deformation in clay rocks by Machine Learning
1WSL Institute for Snow and Avalanche Research SLF; 2Climate Change, Extremes and Natural Hazards in Alpine Regions Research Centre CERC; 3Swiss Federal Office of Topography (swisstopo)
Large-scale reactive transport simulations of uranium migration in Opalinus Clay accelerated by means of surrogate models
1GFZ German Research Centre for Geosciences, Fluid Systems Modelling, Potsdam, Germany; 2University of Potsdam, Institute of Computer Science, Potsdam, Germany
Measurement of pore water density in a bentonite using decalin
Waseda University, Japan
Development of test specimens for evaluating permeability measurements of tight rocks
Federal Office for the Safety of Nuclear Waste Management (BASE), Germany
CP1 and Tribicarb-3D: unique long term and large scale in situ migration tests in Boom Clay at the HADES Underground Research Laboratory
1SCK CEN, Belgium; 2ONDRAF/NIRAS, Belgium
EFFECT OF REDOX STATE ON THE REDOX SENSITIVE ELEMENT RETENTION BY APTIAN SANDS
1BRGM, Orléans, France; 2ANDRA, Centre de Meuse/Haute-Marne, Bure, France; 3ANDRA, R&D Division, Châtenay-Malabry, France
ID: 283
Mechanochemical activation of synthetic Na-n-micas – applications in retention of high-level radioactive waste
1QUIPRE Department, University of Cantabria, Avda. Los Castros, 46, 39005, Santander, Spain.; 2Nanomedicine Group, IDIVAL, Avda. Cardenal Herrera Oria s/n, 39011, Santander, Spain.; 3CITIMAC Department, Universidad de Cantabria, Avda. Los Castros, 48, 39005, Santander, Spain.
ID: 318
Development of a separation method for Am-, Sr-, Pu- and U-isotopes in concrete using extraction chromatography
AGES- Austrian Agency for Health and Food Safety, Austria
Migration behaviour of Ra-226 in the sandy facies of Opalinus Clay
1Institute of Energy and Climate Research – Nuclear Waste Management (IEK-6), Forschungszentrum Jülich GmbH, 52428 Jülich, Germany; 2Laboratory for Waste Management, Paul Scherrer Institut, CH-5232 Villigen PSI, Switzerland
Donnan equilibrium in compacted bentonite
1Clay Technology, Sweden; 2Hartree Centre, STFC Daresbury Laboratory, Daresbury WA4 4AD, UK
ID: 382
Neptunium migration in Opalinus Clay - one experiment with multiple numerical geochemical solutions
1GFZ German Research Centre for Geosciences, Fluid Systems Modelling, Potsdam, Germany; 2Bundesgesellschaft für Endlagerung mbH (BGE), Peine, Germany; 3Helmholtz Zentrum Dresden Rossendorf e.V., Institute of Resource Ecology, Dresden, Germany; 4Johannes Gutenberg Universität Mainz, Department of Chemistry, Mainz, Germany; 5University of Potsdam, Institute of Geosciences, Potsdam, Germany
Effective diffusivity prediction by considering multivariable regression and rock properties
1Laboratory for Waste Management, Paul Scherrer Institute, CH-5232 Villigen, Switzerland; 2Nagra, Wettingen, Switzerland; 3University of Bern, Institute of Geological Sciences, CH-3012 Bern, Switzerland
Successful gas tests at the GAs permeable Seal Test (GAST) - Highlights and lessons learned (Grimsel Test Site, CH)
1Nagra, Switzerland; 2Fracture Systems Ltd, United Kingdom; 3ANDRA, France; 4NWMO, Canada; 5NWS, United Kingdom
ID: 138
Harnessing microbial processes consuming hydrogen in radioac-tive waste repositories
1École Polytechnique Fédérale de Lausanne (EPFL) Environmental Microbiology Labo-ratory, CH-1015 Lausanne, Switzerland; 2National Cooperative for the Disposal of Radioactive Waste CH-5430, Wettingen, Switzerland
Geochemical processes in a repository with clay barriers at high saline conditions
Bundesgesellschaft für Endlagerung, Germany
Cement-Bentonite Interaction with Different Cement Materials at Elevated Temperatures 2: Modeling
1Japan Atomic Energy Agency (JAEA), Japan; 2QJ Science Ltd., Japan
Comparison of different iron/bentonite exhibition tests and effect of the type of exchangeable cation on corrosion products
1BGR, Germany; 2LBEG; 3LUH
Concrete-clay interaction – a systematic review and modelling study
1Amphos 21 Consulting SL, Spain; 2Andra, France
ID: 258
Studying the reactive transport of CO2 in Opalinus Clay with experimental and numerical analyses
1Federal Institute for Geosciences and Natural Resources, BGR, Germany; 2Department of Environmental Informatics, Helmholtz Centre for Environmental Research - UFZ, Leipzig, Germany
Exchangeable and soluble ion populations in semi-technical scale Sandwich sealing system experiments
1Institut für Massivbau und Baustofftechnologie (IMB/MPA/CMM), Karlsruhe Institute of Technology, Karlsruhe, Germany; 2Institut für Geotechnik, TU Bergakademie Freiberg, Germany; 3Ingenieur-Gesellschaft für Sensorik in der Umwelttechnik mbH (ISU), Karlsruhe, Germany
Delving into Bentonite Sedimentation Dynamics
1SKB (Svensk Kärnbränslehantering AB), Oskarshamn, Sweden; 2Kajima Corporation, Tokyo, Japan
Leaching kinetics of metakaolin in alkaline solution
Hokkaido University, Japan
Reactive transport model of the long-term geochemical evolution in the near field of a HLW repository at the disposal cell scale: sensitivi-ties, variants and model simplifications
Universidad de A Coruña, Spain
MINFF: A new classical forcefield for (clay-)minerals
Umeå University, Sweden
Five-year laboratory tests of thermo-hydro-mechanical-chemical evolution of compacted bentonite: an experimental and modelling study
1CIEMAT, Spain; 2Amphos 21 Consulting S.L., Spain; 3UAM, Spain; 4POSIVA, Finland
Deriving a Method for Host Rock specific Temperature Compatibility: Clay Rock
Gesellschaft für Anlagen- und Reaktorsicherheit, Germany
Influence of temperature on the self-sealing of fractures in the Callovo-Oxfordian claystone
University of Lorraine-CNRS, France
Conclusions on the post-yield behaviour of Opalinus claystone from multistage triaxial tests
1TU Clausthal, Germany; 2gbm Gesellschaft für Baugeologie und -meßtechnik mbH - Baugrundinstitut, Ettlingen, Germany; 3Skava Consulting, Salzburg, Austria
ID: 372
Effect of pore water salinity on the tensile strength of Boom Clay
Delft University of Technology, Delft, The Netherlands
ID: 394
THM-Modelling of the ALC1605 in situ heating experiment in Cal-lovo-Oxfordian clay formation
1BGE TECHNOLOGY GmbH, Peine, Germany; 2Geotechnical Institute, TU Bergakademie Freiberg, Freiberg, Germany; 3Helmholtz Centre for Environmental Research – UFZ, Leipzig, Germany; 4Institute of Engineering, National Autonomous University of Mexico, Mexico City, Mexico; 5BGE, Peine, Germany
Open-source implementation of a transversely isotropic elasto-visco-plastic damage model for clay shales in MFront and OpenGeoSys
1Chair of Soil Mechanics and Foundation Engineering, Geotechnical Institute, TU Bergakademie Freiberg, Germany; 2Fraunhofer Research Institution for Energy Infrastructure and Geothermal Systems IEG, Competence Center Geomechanics and Georisks, Aachen, Germany; 3Swiss Federal Nuclear Safety Inspectorate (ENSI), Brugg, Switzerland; 4Chair of Engineering Geology and Hydrogeology, RWTH Aachen, Germany
ID: 216
Numerical simulation of bentonite saturation at different temperatures
Gesellschaft für Anlagen- und Reaktorsicherheit (GRS) gGmbH, Germany
ID: 187
Temperature history effect on swelling pressure of Kunigel-V1 bentonite cured in confined condition
Waseda University, Japan
Evolution of gases in an unsaturated bentonite buffer
SKB, Sweden
Changes in swelling and hydrological characteristics of compacted bentonite by heating at 200 °C
1Central Research Institute of Electric Power Industry, Japan; 2Nuclear Waste Management Organization of Japan, Japan
ID: 233
Current status of the in-situ interaction experiment at the Bukov URF
1Radioactive Waste Repository Authority - SÚRAO, Czech Republic; 2Czech Technical University in Prague, Czech Republic
Sampling, Measurements and Analysis of the Clay Barriers in the Prototype Repository at Äspö HRL
1SKB, Swedish Nuclear Fuel and Waste Management Company; 2Clay Technology
ID: 303
Investigating thermal coupling in a bentonite buffer
1Imperial College London, United Kingdom; 2Nuclear Waste Services, United Kingdom
ID: 1462
Research into the Impact of Non-homogeneity on the Integrity of Bentonite Materials
Czech Technical University in Prague, Czech Republic
TH-Modelling for the in-situ HotBENT experiment at the Grimsel Test Site
1BGE TECHNOLOGY GmbH, Germany; 2Geotechnical Institute, TU Bergakademie Freiberg; 3Helmholtz Centre for Environmental Research – UFZ; 4BGE mbH, Federal Company for Radioactive Waste Disposal
Influence of sand mixture on gas pressure for bentonite
Ashikaga University, Japan
Changing of axial strains in creep performance for bentonite-sand mixture
Ashikaga University, Japan
Cation exchange simulation in Wyoming-type bentonite considering mechanical issues
1Mitta Engineering Oy, Finland; 2Universidad de Castilla-La Mancha, Spain; 3Posiva Oy, Finland
ID: 391
Benchmarking of Double-Structure Models for the Numerical Simulation of Swelling Clays
1Geotechnical Institute, TU Bergakademie Freiberg, Germany; 2Gesellschaft für Anlagen- und Reaktorsicherheit (GRS) gGmbH, Braunschweig, Germany; 3Swiss Federal Nuclear Safety Inspectorate (ENSI), Brugg, Switzerland; 4Institut für Gebirgsmechanik GmbH, Leipzig, Germany
ID: 341
3D Modelling of Coupled Hydro-Mechanical Processes in Fractured Opalinus Clay Shale
1Department of Earth Sciences, Uppsala University, Uppsala, Sweden; 2Federal Office of Topography (swisstopo), Mont Terri URL, St-Ursanne, Switzerland
Impact of desaturation on the diffusion of gases in clay-based samples
1SCK CEN, Belgium; 2KU Leuven, Belgium
Young’s modulus in claystones – adding complexity, reducing uncertainty
Federal Institute for Geosciences and Natural Resources, Germany
ID: 160
Gas breakthrough simulation using bimodal porosity and mul-tiscale approach
1Federal Institute for Geosciences and Natural Resources (BGR), Germany; 2Helmholtz Center for Environmental Research (UFZ), Germany; 3Dresden University of Technology (TUD), Germany; 4Technische Universität Bergakademie Freiberg (TUBAF), Germany
Development of a two-phase hysteretic model accounting for water and gas entry pressure for evaluating hysteretic hydrodynamic properties of clay-based materials in a deep geological repository for radioactive waste
Institut de Radioprotection et de Sûreté Nucléaire (IRSN), France
Testing device for the visualisation of gas-driven cracks in clays
Delft University of Technology, The Netherlands
Erosion of compacted bentonite at elevated temperature
The University of Manchester, United Kingdom
ID: 412
Observations and Quantification of Gas Flow in Sand-Bentonite Mixtures using Analogue Tests
British Geological Survey, United Kingdom
FE-G: 10 years of gas dynamics observations at the Full-Scale Emplacement experiment (Opalinus Clay, Mont Terri, CH)
1Nagra, Switzerland; 2ANDRA, France; 3NWMO, Canada; 4ICC Ltd, Canada; 5Eawag, Switzerland; 6NWS, United Kingdom
14 years long Gas Experiment in borehole PAC1011 at ANDRA’s Un-derground Research Laboratory: Modelling the injection and transport of an Argon/Helium gas mixture in the Callovo-Oxfordian Claystone under in situ conditions
1INTERA, France; 2INTERA, Switzerland; 3ANDRA, France