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Dei, Shuntaro; Shibata, Masahito*; Negishi, Kumi*; Sugiura, Yuki; Amano, Yuki; Bateman, K.*; Wilson, J.*; Yokoyama, Tatsunori; Kagami, Saya; Takeda, Masaki; et al.
Results in Earth Sciences (Internet), 3, p.100097_1 - 100097_16, 2025/12
Interactions between cement and host rock in geological repositories for radioactive waste will result in a chemically disturbed zone, which may potentially affect the long-term safety. This paper investigates the chemical evolution at the interface between cement (Ordinary Portland Cement: OPC and Low Alkaline Cement: LAC) and mudstone after 11 years of in situ reactions at the Horonobe Underground Research Laboratory. The study combines various analytical techniques to identify the key reactions at the cement-rock interface, including cement dissolution, precipitation of secondary minerals such as calcite and C-(A-)S-H phases, cation exchange in montmorillonite and reduced porosity in mudstone. The study also highlights the effects of cement-mudstone interactions on radionuclide migration, such as reduction of diffusivity due to reduced porosity and enhancement of sorption due to incorporation into secondary minerals in the altered mudstone.
Bateman, K.*; Murayama, Shota*; Hanamachi, Yuji*; Wilson, J.*; Seta, Takamasa*; Amano, Yuki; Kubota, Mitsuru*; Ouchi, Yuji*; Tachi, Yukio
Minerals (Internet), 12(7), p.883_1 - 883_20, 2022/07
Times Cited Count：3 Percentile：20.58(Geochemistry & Geophysics)Bateman, K.; Murayama, Shota*; Hanamachi, Yuji*; Wilson, J.*; Seta, Takamasa*; Amano, Yuki; Kubota, Mitsuru*; Ouchi, Yuji*; Tachi, Yukio
Minerals (Internet), 11(9), p.1026_1 - 1026_23, 2021/09
Times Cited Count：2 Percentile：4.45(Geochemistry & Geophysics)Wilson, J.*; Bateman, K.; Tachi, Yukio
Applied Geochemistry, 130, p.104979_1 - 104979_19, 2021/07
Times Cited Count：26 Percentile：53.67(Geochemistry & Geophysics)The concept of deep geological disposal will include the multiple use of cement-based materials. In the case of argillaceous host rocks, the presence of hyperalkaline cement porefluid results in the destabilization of primary minerals in the argillite, resulting in the development of a zone of alteration at cement-rock interfaces. The process understanding gained from experimental, analogue, and modelling studies has been reviewed, and remaining areas of uncertainty identified. Although there is a reasonably good understanding of the mineral assemblages that are likely to occur due to cement-rock interactions, there are still some areas where a degree of uncertainty remains, in particular: the evolution of cement-argillite interfaces at T 
25
C; the rates at which secondary minerals form; the extent of pore clogging due to secondary mineral precipitation; the implications of alteration for radionuclide transport.
Bateman, K.; Amano, Yuki; Kubota, Mitsuru*; Ouchi, Yuji*; Tachi, Yukio
Minerals (Internet), 11(6), p.588_1 - 588_19, 2021/06
Times Cited Count：5 Percentile：20.97(Geochemistry & Geophysics)Callen, J. D.*; Anderson, J. K.*; Arlen, T. C.*; Bateman, G.*; Budny, R. V.*; Fujita, Takaaki; Greenfield, C. M.*; Greenwald, M.*; Groebner, R. J.*; Hill, D. N.*; et al.
Nuclear Fusion, 47(11), p.1449 - 1457, 2007/11
Times Cited Count：7 Percentile：24.41(Physics, Fluids & Plasmas)no abstracts in English
Doyle, E. J.*; Houlberg, W. A.*; Kamada, Yutaka; Mukhovatov, V.*; Osborne, T. H.*; Polevoi, A.*; Bateman, G.*; Connor, J. W.*; Cordey, J. G.*; Fujita, Takaaki; et al.
Nuclear Fusion, 47(6), p.S18 - S127, 2007/06
no abstracts in English
West, J. M.*; Hama, Katsuhiro; Bateman, K.*; Coombs, P.*; Hards, V.*; Milodowski, A. E.*; Wetton, P. D.*; Yoshida, Hidekazu
Materials Research Society Symposium Proceedings, Vol.663, p.657 - 664, 2002/00
None
Hama, Katsuhiro; Hards, V. L.*; Milodo, A. E.*; West, J. M.*; Bateman, K.*; Coombs, P.*; Milodowski, A. E.*; Wetton, P. D.*; Yoshida, Hidekazu; Aoki, Kazuhiro
Clay Minerals, 36(4), p.599 - 613, 2001/00
Times Cited Count：25 Percentile：55.94(Chemistry, Physical)None
Yoshida, Hidekazu; Hama, Katsuhiro; West, J. M.*; Bateman, K.*; Milodowski, A. E.*; Baker, S. J.*; Coombs, P.*; Hards, V. L.*; Spiro, B.*; Wetton, P. D.*
JNC TJ7400 99-013, 68 Pages, 1999/07
In April 1997 the Japan Nuclear Cycle Development Institute (JNC)commissioned a Three-Task project from the Bretish Geological Survey (BGS). Task 1 was a continuation of work started in 1996 to examine microbial effects on redox and to quantify the effects of microbiological perturbations on the geological disposal of HLW(TRU). Task 2 was commissioned to provide information on theTsukiyoshi Fault for use in ongoing work at the Tono Geoscience Centre. Task 3 was to draft a Technical programme for use in ongoing work at the Tono Geoscience Centre.Task 3 was to draft a Technical programme for a geochemical study of the Tono site. This report details the results of Task 1, undertaken in 1998/99.
West, J. M.*; Aoki, Kazuhiro; Baker, S. J.*; Bateman, K.*; Coombs, P.*; Gillespie, M. R.*; Henney, P. J.*; Reeder, S.*; Milodowski, A. E.*; Yoshida, Hidekazu
JNC TJ7400 99-002, 117 Pages, 1997/01
In February 1996 the Power Reactor and Nuclear Fuel Development Corportation(PNC)of Japan commissioned a one year study from the British Geological Survey(BGS)to examine microbial effects on redox and to quantify the effects of microbiological perturbations on the geological disposal of HLW(TRU). The work was splitinto two tasks: Tas k 1:SKB REX Cooperation 'To perform laboratory experiments on bacterial processes to assess their influences on redox'.or Task 2:Microbiol ogical modelling the BGS developed code MGSE. This report details the results of Task 1.
Bateman, K.; Amano, Yuki; Tachi, Yukio
no journal, ,
Wilson, J.*; Bateman, K.*; Kawama, Daisuke*; Tachi, Yukio
no journal, ,
Bateman, K.; Amano, Yuki; Tachi, Yukio
no journal, ,
