TY - JOUR
T1 - Contribution of the results of the CEBAMA project to decrease uncertainties in the Safety Case and Performance Assessment of radioactive waste repositories
AU - Duro, Lara
AU - Altmaier, Marcus
AU - Holt, Erika
AU - Mäder, Urs
AU - Claret, Francis
AU - Grambow, Bernd
AU - Idiart, Andrés
AU - Valls, Alba
AU - Montoya, Vanessa
N1 - Funding Information:
The research leading to these results has received funding from the European Union's Horizon 2020 Research and Training Programme of the European Atomic Energy Community (EURATOM) ( H2020-NFRP-2014/2015 ) under grant agreement n° 662147 (CEBAMA). The authors are very grateful to all the beneficiaries of the project and to the organisations and representatives of the End Users Group (EUG) of the project: ANDRA (Pierre Henocq); COVRA (Erika Neeft); ENRESA (Miguel Angel Cuñado); NAGRA (Veerle Cloet and Lukas Martin); ONDRAF/NIRAS (Seif Ben Hadj Hassine); POSIVA (Marja Vuorio); RWM (Amy Shelton); SKB (Per Mårtensson) and SURAO (Lucie Hausmannova). The EUG have very positively contributed to the discussions, have guided the project objectives and applicability, and have reviewed the technical and scientific contributions to the annual meetings of CEBAMA.
Funding Information:
The research leading to these results has received funding from the European Union's Horizon 2020 Research and Training Programme of the European Atomic Energy Community (EURATOM) (H2020-NFRP-2014/2015) under grant agreement n? 662147 (CEBAMA). The authors are very grateful to all the beneficiaries of the project and to the organisations and representatives of the End Users Group (EUG) of the project: ANDRA (Pierre Henocq); COVRA (Erika Neeft); ENRESA (Miguel Angel Cu?ado); NAGRA (Veerle Cloet and Lukas Martin); ONDRAF/NIRAS (Seif Ben Hadj Hassine); POSIVA (Marja Vuorio); RWM (Amy Shelton); SKB (Per M?rtensson) and SURAO (Lucie Hausmannova). The EUG have very positively contributed to the discussions, have guided the project objectives and applicability, and have reviewed the technical and scientific contributions to the annual meetings of CEBAMA.
Publisher Copyright:
© 2019 Elsevier Ltd
Copyright:
Copyright 2019 Elsevier B.V., All rights reserved.
PY - 2020/1
Y1 - 2020/1
N2 - Cement-based materials are key materials used in repositories of low, intermediate and high-level radioactive waste in any host-rock concept. These materials are used for waste conditioning, liners, seals as well as structural components. The CEBAMA (CEment-BAsed MAterials, properties, evolution, barrier functions) project (2015–2019) has been an initiative granted by the European Commission under the Horizon 2020 Research and Training Programme of the European Atomic Energy Community (EURATOM), focused on the study of cementitious materials. The project has addressed key issues of relevance for long-term safety and key scientific questions related to the use of cement-based materials in nuclear waste disposal applications. This publication presents the advances resulting from the research undertaken in the CEBAMA project, with special emphasis on their contribution to decrease uncertainties in the Safety Case and the Performance Assessment of radioactive waste repositories. The analysis is presented in three different axes, in coincidence with the lines of research of the project: degradation of cement-based materials and its impact on cement/clay interfaces; retention of safety relevant radionuclides and toxicants on cement-based materials and modelling advances in cementitious related systems. The research investigations have provided important new insights on process understanding and model developments which have significantly decreased the level of uncertainty.
AB - Cement-based materials are key materials used in repositories of low, intermediate and high-level radioactive waste in any host-rock concept. These materials are used for waste conditioning, liners, seals as well as structural components. The CEBAMA (CEment-BAsed MAterials, properties, evolution, barrier functions) project (2015–2019) has been an initiative granted by the European Commission under the Horizon 2020 Research and Training Programme of the European Atomic Energy Community (EURATOM), focused on the study of cementitious materials. The project has addressed key issues of relevance for long-term safety and key scientific questions related to the use of cement-based materials in nuclear waste disposal applications. This publication presents the advances resulting from the research undertaken in the CEBAMA project, with special emphasis on their contribution to decrease uncertainties in the Safety Case and the Performance Assessment of radioactive waste repositories. The analysis is presented in three different axes, in coincidence with the lines of research of the project: degradation of cement-based materials and its impact on cement/clay interfaces; retention of safety relevant radionuclides and toxicants on cement-based materials and modelling advances in cementitious related systems. The research investigations have provided important new insights on process understanding and model developments which have significantly decreased the level of uncertainty.
KW - Cement
KW - Clay-concrete interactions
KW - Low-pH concrete
KW - Radioactive waste
KW - Radionuclide sorption
KW - Radionuclide-cement interaction
KW - Safety case
UR - http://www.scopus.com/inward/record.url?scp=85075777015&partnerID=8YFLogxK
U2 - 10.1016/j.apgeochem.2019.104479
DO - 10.1016/j.apgeochem.2019.104479
M3 - Article
AN - SCOPUS:85075777015
SN - 0883-2927
VL - 112
JO - Applied Geochemistry
JF - Applied Geochemistry
M1 - 104479
ER -