TY - BOOK ID - 138274404 TI - Multiple roles of clays in radioactive waste confinement AU - Norris, S. AU - Neeft, Erika Anna Cornelia AU - Geet, M. van PY - 2019 SN - 9781786204042 1786204045 PB - London [England] The Geological Society DB - UniCat KW - Clay KW - Clay soils KW - Radioactive waste disposal KW - Radioactive waste disposal in the ground KW - Radioactive waste repositories KW - Materials UR - https://www.unicat.be/uniCat?func=search&query=sysid:138274404 AB - This Special Publication highlights the importance of clays and clayey material, and their multiple roles, in many national geological disposal facilities for higher activity radioactive wastes. Clays can be both the disposal facility host rock and part of its intrinsic engineered barriers, and may be present in the surrounding geological environment. Clays possess various characteristics that make them high-quality barriers to the migration of radionuclides and chemical contaminants, e.g. very little water movement, diffusive transport, retention capacity, self-sealing capacity, stability over millions of years, homogeneity and lateral continuity. The 20 papers presented in this Special Publication cover a range of topics related to clays in radioactive waste confinement. Aspects of clay characterization and behaviour at various temporal and spatial scales relevant to the confinement of radionuclides in clay are discussed, from phenomenological processes to the overall understanding of the performance and safety of geological disposal facilities. ER -