Conference Agenda

In-situ radionuclides diffusion experiment in a thermal gradient in the sandy facies of Opalinus Clay

Guillaume Pochet¹, David Jaeggi², Frank Heberling³, Bastian Graupner⁴, Will Bower⁵, Guido Deissmann⁶, Myriam Agnel⁷, Fabiano Magri⁸, Agnes Vinsot⁷, Christoph Borkel⁸, Carl Dietl⁸, Frederic Bernier¹, Cedric Barroo¹, Maryna Surkova¹, Yuankai Yang⁶, Sanduni Ratnayake³, Vanessa Montoya⁹

¹FANC, Brussels, Belgium; ²Swisstopo, Wabern, Switzerland; ³KIT, Karlsruhe, Germany; ⁴ENSI, Brugg, Switzerland; ⁵NWS, Cumbria, UK; ⁶Forschungszentrum Juelich, Juelich, Germany; ⁷ANDRA, Bure, France; ⁸BASE, Berlin, Germany; ⁹SCK CEN, Mol, Belgium

A batch and diffusion investigation of the mobility of selenide into the Callovo-oxfordian argillite

Sebastien SAVOYE¹, Nathalie COREAU¹, Serge LEFEVRE¹, Emilie THORY¹, Benoit MADE², Jean-Charles ROBINET², Romain DAGNELIE¹

¹Paris Saclay University, CEA, France; ²Andra, France

DIFFUSION AND RETENTION OF DIVALENT TRANSITION METAL TRACERS IN COMPACTED ILLITE CONVERTED TO DIFFERENT CATIONIC FORMS

Dimitra Zerva^1,2, Martin Glaus¹, Sergey Churakov^1,2

¹Paul Scherrer Institute; ²Univerisity of Bern

Predictive modelling of radionuclide sorption on Boom Clay

Delphine Durce¹, Lian Wang¹, Liesbeth Van Laer¹, Norbert Maes¹, Stephane Brassinnes²

¹SCK CEN, Belgium; ²ONDRAF/NIRAS, Belgium

Preliminary study of iron-clay interactions in clay samples col-lected in the Kiirunavaara iron mine, Kiruna, northern Sweden

Satoru Suzuki¹, Tatsuya Fujimura², Kanya Kimura², Ryosuke Kikuchi², Takahiro Goto¹, Ulf B Andersson³, Tsubasa Otake², Tsutomu Sato²

¹Science and Technology Department, NUMO, Japan; ²Hokkaido University, Japan; ³LKAB, Kiruna, Sweden

The microbial community in bentonites B27 and GMZ and its in-fluence on cast iron corrosion

Sean Ting-Shyang Wei, Sindy Kluge, Paul Chekhonin, Vanessa Dykas, Cornelia Kaden, Nicole Matschiavelli

Helmholtz-Zentrum Dresden-Rossendorf, Germany

Modelling the evolution of a bentonite-cementitious backfilling grout for HLW disposal cell

Kevins Rhino¹, Nicolas Marty¹, Sylvain Grangeon¹, Nicolas Maubec¹, Catherine Lerouge¹, Esra Orucoglu¹, Mathieu Debure¹, Sebastien Jego¹, Nicolas Michau², Xavier Bourbon², Christelle Martin²

¹BRGM, F-45060 Orléans, France; ²Andra, 1/7 Rue Jean Monnet, 92298, Châtenay-Malabry CEDEX, France

Evolution upon contact with water of a bentonite-cement backfilling grout: insights from laboratory and in situ mineralogical characteriza-tions and from geochemical modelling

Sylvain Grangeon¹, Mathieu Debure¹, Valerie Montouillout², Erik Elkaïm³, Catherine Lerouge¹, Nicolas Maubec¹, Nicolas Michau⁴, Xavier Bourbon⁴, Christelle Martin⁴, Benoit Cochepin⁴, Nicolas Marty¹

¹BRGM, F-45060 Orléans, France; ²Conditions Extrêmes et Matériaux : Haute Température et Irradiation (CEMHTI), CNRS UPR 3079, 1D avenue de la Recherche Scientifique 45071 Orléans, France; ³Synchrotron SOLEIL, L'Orme des Merisiers, Saint-Aubin 91190, France; ⁴Andra, 1/7 Rue Jean Monnet, 92298, Châtenay-Malabry CEDEX, France

In-situ long-term interactions between different concrete formulas and COx claystone in a deep disposal context

Catherine Lerouge¹, Nicolas Maubec¹, Guillaume Wille¹, Christine Flehoc¹, Catherine Guerrot¹, Stéphane Gaboreau¹, Yannick Linard², Francis Claret¹

¹BRGM, France; ²ANDRA, France

The International DECOVALEX Initiative - Building Confidence Via Model Comparison

Jens Birkholzer¹, Alex Bond², LianGe Zheng¹

¹Lawrence Berkeley National Laboratory, United States of America; ²Quintessa Ltd., United Kingdom

Numerical modelling of heating induced cracking process by phase-field method considering thermo-hydromechanical coupling

Zhan YU¹, Jianfu SHAO¹, Minh-Ngoc VU²

¹University of Lille, France; ²Andra, France

Implementation of a temperature-dependent constitutive model for argillaceous hard soils – weak rocks in MFront

Miguel A. Mánica¹, Eric Simo^2,4,5, Philipp Herold², Thomas Helfer³, Thomas Nagel⁴, Alexandru Tatomir⁵

¹Institute of Engineering, National Autonomous University of Mexico, Mexico City, Mexico; ²BGE TECHNOLOGY GmbH, Peine, Germany; ³CEA, DES, IRESNE, DEC, Cadarache, France; ⁴Geotechnical Institute, TU Bergakademie Freiberg, Germany; ⁵BGE, Peine, Germany

Outcome of a THM modelling benchmark on the effect of heating on clay formations

Christophe de Lesquen¹, Arnaud Dizier², Carlos Plúa¹, Gilles Armand¹, Eric Simo³

¹Andra, France; ²EURIDICE, Belgium; ³BGE, Germany

Performance assessment modeling at the repository and component level for the Swiss deep geological repository

Dominik Zbinden¹, Ursula Lengler¹, Keurfon Luu¹, Babak Shabani², Chao Li¹, Alexandros Papafotiou³, Paul Marschall³

¹INTERA Inc. Swiss Branch, Wettingen, Switzerland; ²INTERA Inc., Bloomington, IN, USA; ³Nagra, Wettingen, Switzerland

Post-closure evolution of voids in geological disposal facility vaults and implications for containment

Sam Parsons¹, Simon Norris¹, Javier Corral², David Holton³

¹Nuclear Waste Services; ²Jacobs; ³MCM Environmental Services Ltd

Uncertainty quantification of the elasto-viscoplastic behavior of COx claystone and long-term stability assessment of the drift’s concrete liner

Duc Phi DO¹, Minh Ngoc VU², Dashnor HOXHA¹, Gilles ARMAND²

¹Univ Orléans, Univ Tours, INSA CVL, Lamé, EA 7494, France; ²Andra, 92298 Chatenay-Malabry, France

Comparing uncertainty quantification methods in the context of safety analyses for high-level nuclear waste disposal systems

Merle Marie Bjorge^1,2, Aqeel Afzal Chaudhry², Kata Kurgyis², Wolfram Rühaak^1,3, Thomas Nagel^2,4

¹Bundesgesellschaft für Endlagerung mbH (BGE), Peine, Germany; ²Geotechnical Institute, Technische Universität Bergakademie Freiberg, Freiberg, Germany; ³Technische Universität Darmstadt, Department of Geothermal Science and Technology, Darmstadt, Germany; ⁴Freiberg Center for Water Research (ZeWaF), Freiberg, Germany

Modelling the impact of design variations in a spent nuclear fuel repository on near-field sulfide fluxes and Cu canister corrosion depths

Jin Ma¹, Peter Alt-Epping¹, Mika Niskanen², Barbara Pastina², Paul Wersin¹

¹University of Bern, Switzerland; ²Posiva Oy, Finland

Hydro-chemo-mechanical modelling of bentonite-based seals - understanding key couplings for long-term performance

Andrés IDIART¹, Marcelo LAVIÑA¹, Miquel DE LA IGLESIA¹, Benoit COCHEPIN², Nicolas MICHAU², Jean TALANDIER²

¹Amphos 21 Consulting S.L., Barcelona, Spain; ²Andra, Chatenay-Malabry, France

Numerical tool for THCM equilibrium conditions in bentonite

Gema Urraca Lara, Adrián Sánchez-Migallón, Rubén López-Vizcaíno, Ángel Yustres, Laura Asensio, Vicente Navarro

Universidad Castilla La-Mancha, Spain

HMC simulation of swelling pressure test on bentonite using the double structure model considering the surface phenomena of mineral crystal

Hiroyuki Kyokawa, Ryuhei Urata

Nagoya Institute of Technology, Japan

VARS global sensitivity analyses of key geochemical variables for the long-term geochemical evolution of a geological repository

Javier Samper¹, Carlos López-Vázquez², Bruno Pisani¹, Alba Mon¹, Aurora Core Samper-Pilar¹, Javier Samper-Pilar¹

¹Universidad de A Coruña, Spain; ²Universidad ORT Uruguay

NEMESIS: diffusion of dissolved neon in the HADES URL

Elke Jacops¹, Li Yu¹, Guangjing Chen^1,2, Anneleen Vanleeuw¹, Temenuga Georgieva², Xavier Sillen³, Séverine Levasseur³

¹SCK CEN, Belgium; ²EURDICE, Belgium; ³ONDRAF/NIRAS, Belgium

Diffusion measurements in natural and synthetic clay-based materi-als: comparison between volumetrically constrained and isotropically stressed samples with differing mineralogy

Jon Harrington¹, Elke Jacops², Elena Tamayo-Mas¹, Andrew Wiseall³, Katherine Daniels⁴

¹British Geological Survey, United Kingdom; ²SCK CEN, Belgium; ³Nuclear Waste Services; ⁴Cardiff University

Full-3D THM-G Modelling of Gas Permeable Seal Test (GAST) Under Localized Gas Flow Configuration

Erdem Toprak¹, Sebastia Olivella², Enrique Romero²

¹CIMNE, Spain; ²UPC

Investigation of Gas Transport and Penetration in Saturated Callo-vo-Oxfordian Claystone Using X-ray Microtomography and Digital Volume Correlation

Hailing Shi¹, Jian-fu Shao¹, Shouyi Xie¹, Thomas Rougelot¹, Minh-Ngoc Vu², Jean Talandier²

¹Univ. Lille, CNRS, Centrale Lille, UMR9013 - LaMcube - Laboratoire de Mécanique Multiphysique Multiéchelle, F-59000, Lille, France; ²Andra, 92298 Chatenay Malabry, France

Effect of the heterogeneity on the gas transport properties of dif-ferent pellet/powder bentonite mixtures

Arisleidy Mesa-Alcantara^1,2, Enrique Romero^1,2, Laura Gonzalez-Blanco^1,2, Juan Mauricio Macías², Nadia Mokni³

¹International Centre for Numerical Methods in Engineering (CIMNE), Barcelona, Spain; ²Universitat Politècnica de Catalunya (UPC), 08034 Barcelona, Spain; ³Institut de Radioprotection et de Sûreté Nucléaire IRSN, 92260 Fontenay-aux-Roses, France