Hostname: page-component-cd9895bd7-fscjk Total loading time: 0 Render date: 2024-12-23T16:14:58.419Z Has data issue: false hasContentIssue false
  • English
  • Français

Development of a reactive transport code MC-CEMENT ver. 2 and its verification using 15-year in situ concrete/clay interactions at the Tournemire URL†

Published online by Cambridge University Press:  09 July 2018

T. Yamaguchi ,
M. Kataoka ,
T. Sawaguchi ,
M. Mukai ,
S. Hoshino ,
T. Tanaka ,
F. Marsal  and
D. Pellegrini
T. Yamaguchi*
Affiliation:
Japan Atomic Energy Agency, Tokai, Ibaraki 319-1195, Japan
M. Kataoka
Affiliation:
Japan Atomic Energy Agency, Tokai, Ibaraki 319-1195, Japan
T. Sawaguchi
Affiliation:
Japan Atomic Energy Agency, Tokai, Ibaraki 319-1195, Japan
M. Mukai
Affiliation:
Japan Atomic Energy Agency, Tokai, Ibaraki 319-1195, Japan
S. Hoshino
Affiliation:
Japan Atomic Energy Agency, Tokai, Ibaraki 319-1195, Japan
T. Tanaka
Affiliation:
Japan Atomic Energy Agency, Tokai, Ibaraki 319-1195, Japan
F. Marsal
Affiliation:
Institute for Radiological Protection and Nuclear Safety, BP 17 92262 Fontenay-aux-Roses, France
D. Pellegrini
Affiliation:
Institute for Radiological Protection and Nuclear Safety, BP 17 92262 Fontenay-aux-Roses, France
*
*E-mail: [email protected]
Rights & Permissions [Opens in a new window]

Abstract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

Highly alkaline environments induced by cement-based materials are likely to cause the physical and/or chemical properties of the bentonite buffer materials in radioactive waste repositories to deteriorate. Assessing long-term alteration of concrete/clay systems requires physicochemical models and a number of input parameters. In order to provide reliability in the assessment of the long-term performance of bentonite buffers under disposal conditions, it is necessary to develop and verify reactive transport codes for concrete/clay systems. In this study, a PHREEQC-based, reactive transport analysis code (MC-CEMENT ver. 2) was developed and was verified by comparing results of the calculations with in situ observations of the mineralogical evolution at the concrete/argillite interface. The calculation reproduced the observations such as the mineralogical changes in the argillite limited to within 1 cm in thickness from the interface, formation of CaCO3 and CSH, dissolution of quartz, decrease of porosity in the argillite and an increase in the concrete. These agreements indicate a possibility that models based on lab-scale (∼1 year) experiments can be applied to longer time scales although confidence in the models is necessary for much longer timescales. The fact that the calculations did not reproduce the dissolution of clays and the formation of gypsum indicates that there is still room for improvement in our model.

Keywords

alterationbentonitecement-clayradioactive waste disposalreactive transport codeverificationTournemireURL
Type
Research Article
Information
Clay Minerals , Volume 48 , Issue 2 , May 2013 , pp. 185 - 197
Creative Commons
Creative Common License - CCCreative Common License - BY
Copyright © The Mineralogical Society of Great Britain and Ireland 2013 This is an Open Access article, distributed under the terms of the Creative Commons Attribution license. (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted re-use, distribution, and reproduction in any medium, provided the original work is properly cited.
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 2013

Footnotes

†

Part of this study was funded by the Secretariat of Nuclear Regulation Authority, Nuclear Regulation Authority, Japan

References

Appelo, C.A.J. & Wersin, P. (2007) Multicomponent diffusion modeling in clay systems with application to the diffusion of tritium, iodide, and sodium in Opalinus clay. Environmental Science and Technology, 41, 5002–5007.10.1021/es0629256CrossRefGoogle Scholar
Beaucaire, C., Michelot, J.-L., Savoye, S. & Cabrera, J. (2008) Groundwater characterization and modelling of water-rock interaction in an argillaceous formation (Tournemire, France). Applied Geochemistry, 23, 2182–2197.10.1016/j.apgeochem.2008.03.003Google Scholar
Dauzères, A., Le Bescop, P., Sardini, P. & Cau Dit Coumes, C. (2010) Physico-chemical investigation of clayey/cement-based materials interaction in the context of geological waste disposal: Experimental approach and results. Cement and Concrete Research, 40, 1327–1340.Google Scholar
De Windt, L., Cabrera, J. & Boisson, J.Y. (1999) Radioactive waste containment in indurated shales: comparison between the chemical containment properties of matrix and fractures. Geological Society London, Special Publication, 157, 167–181.10.1144/GSL.SP.1999.157.01.13CrossRefGoogle Scholar
De Windt, L., Marsal, F., Tinseau, E., & Pellegrini, D. (2008) Reactive transport modeling of geochemical interactions at a concrete/argillites interface, Tournemire site (France). Physics and Chemistry of the Earth, 33, S295–S305.Google Scholar
Gaboreau, S., Prêt, D., Tinseau, E., Claret, F., Pellegrini, D. & Stammose, D. (2011) 15 years of in situ cementargillite interaction from Tournemire URL: Characterisation of the multi-scale spatial heterogeneities of pore space evolution. Applied Geochemistry, 26, 2159–2171.10.1016/j.apgeochem.2011.07.013Google Scholar
Gaucher, E.C., Blanc, P., Matray, J.-M. & Michau, N. (2004) Modeling diffusion of an alkaline plume in a clay barrier. Applied Geochemistry, 19, 1505–1515.10.1016/j.apgeochem.2004.03.007Google Scholar
Ichige, S. & Mihara, M. (1998) Alteration experiment of compacted bentonite in high pH solution. P. 611 in: Proceedings of the Spring Meeting of Japan Atomic Energy Society, (in Japanese).Google Scholar
Itälä, A., Olin, M., & Lehikoinen, J. (2011) Lot A2 test, THC modeling of the bentonite buffer. Physics and Chemistry of the Earth, 36, 1830–1837.Google Scholar
Kipp, Jr. K.L. (1997) Guide to the Revised Heat and Solute Transport Simulator: HST3D Version 2. Water-Resource Investigations Report 97-4157, U.S. Geological Survey, Denver, Colorado.Google Scholar
Luna, M., Arcros, D. & Duro, L. (2006) Effect of grouting, shotcreting and concrete leachates on backfill geochemistry. SKB Report R-06-107, Swedish Nuclear Fuel and Waste Management Co., Stockholm.Google Scholar
Maher, K., Steefel, C.I., DePaolo, D.J. & Viani, B.E. (2006) The mineral dissolution rate conundrum: Insight from reactive transport modeling of U isotopes and pore fluid chemistry in marine sediments, Geochimica et Cosmochimica Acta, 70, 337–363.10.1016/j.gca.2005.09.001Google Scholar
Montarnal, Ph., Mügler, C., Colin, J., Descostes, M., Dimier, A. & Jacquot, E. (2007) Presentation and use of a reactive transport code in porous media, Physics and Chemistry of the Earth, 32, 507–517.Google Scholar
Nakayama, S., Sakamoto, Y., Yamaguchi, T., Akai, M., Tanaka, T., Sato, T. & Iida, Y. (2004) Dissolution of montmorillonite in compacted bentonite by highly alkaline aqueous solutions and diffusivity of hydroxide ions. Applied Clay Science, 27, 53–65.10.1016/j.clay.2003.12.023Google Scholar
Noy, D.J. (1998) User guide to PRECIP, a program for coupled flow and reactive solute transport. British Geological Survey Technical Report, WE/98/13. British Geological Survey, Keyworth, UK.Google Scholar
Otsuka, I., Taki, H., Yamaguchi, T., Iida, Y., Yamada, F., Inada, D. & Tanaka, T. (2008) Effect of overpack corrosion on redox potential of bentonite pore water under geological disposal environment Important parameter acquisition and a preliminary Eh analysis. JAEA-Research 2008-043.Google Scholar
Parkhurst, D. L. & Appelo, C.A.J. (1999) User's Guide to PHREEQC (Version 2)–A Computer Program for Speciation, Batch-Reaction, One-Dimensional Transport, and Inverse Geochemical Calculations. Water-Resources Investigations Report 99-4259, U.S. Geological Survey, Denver, Colorado.Google Scholar
Parkhurst, D. L., Kipp, K. L. & Engesgaard, P. (2000) PHAST. A program for simulating ground-water flow and multicomponent geochemical reactions. User's Guide, U.S. Geological Survey, Denver, Colorado, 154 pp.Google Scholar
Patriarche, D., Ledoux, E., Simon-Coinçon, R., Michelot, J. -L . & Cabrera, J. (2004) Characterization and modeling of diffusion process for mass transport through the Tournemire argillites (Aveyron, France). Applied Clay Science, 26, 109–122.10.1016/j.clay.2003.10.005Google Scholar
Quintessa (2010) QPAC: Quintessa's General-Purpose Modeling Code. Quintessa Report QRS-QPAC-11 v 1.0. Quintessa Limited, Henley-on-Thames, UK.Google Scholar
Radioactive Waste Management Funding and Research Center (RWMC) (2002) High-temperature column tests. Pp. II-140–II-154 in: Verification Test on Advanced Radioactive Waste Disposal Systems (in Japanese).Google Scholar
Savage, D., Watson, C., Benbow, S. & Wilson, J. (2010) Modelling iron-bentonite interactions. Applied Clay Science, 47, 91–98.10.1016/j.clay.2008.03.011Google Scholar
Techer, I., Bartier, D., Boulvais, Ph., Tinseau, E., Suchorski, K., Cabrera, J. & Dauzères, A. (2012) Tracing interactions between natural argillites and hyper-alkaline fluids from engineered cement paste and concrete: Chemical and isotopic monitoring of a 15-years old deep-disposal analogue. Applied Geochemistry, 27, 1384–1402.10.1016/j.apgeochem.2011.08.013Google Scholar
Tinseau, E., Bartier, D., Hassouta, L., Devol-Brown, I. & Stammose, D. (2006) Mineralogical characterization of the Tournemire argillite after in situ interaction with concretes. Waste Management, 26, 789–800.10.1016/j.wasman.2006.01.024Google Scholar
van der Lee, J., De Windt, L., Lagneau, V. & Goblet, P. (2003) Module-oriented modeling of reactive transport with HYTEC. Computers and Geosciences, 29, 265–275.10.1016/S0098-3004(03)00004-9CrossRefGoogle Scholar
Wada, T. (1992) Morphology of sepiolite. Journal of Clay Science Society of Japan, 32, 184–189.(in Japanese).Google Scholar
Watson, C., Hane, K. & Benbow, S. (2004) Comparison between the Raiden 3 and PRECIP Coupled Reaction-Transport Codes, QRS-1259A-2, Quintessa, Oxfordshire, UK.Google Scholar
Watson, C., Hane, K., Savage, D., Benhow, S., Cuevas, J. & Fernandez, R. (2009) Reaction and dissolution of cementitious water in bentonite: Results of “blind” modeling. Applied Clay Science, 45, 54–69.10.1016/j.clay.2009.03.007Google Scholar
Xu, T. & Pruess, K. (2001) Modeling multiphase nonisothermal fluid flow and reactive geochemical transport in variably saturated fractured rocks: 1. Methodology. American Journal of Science, 301, 16–33.Google Scholar
Yamaguchi, T., Sakamoto, Y., Akai, M., Takazawa, M., Iida, Y., Tanaka, T. & Nakayama, S. (2007) Experimental and modeling study on long-term alteration of compacted bentonite with alkaline groundwater. Physics and Chemistry of the Earth, 32, 298–310.Google Scholar
Yamaguchi, T., Yamada, F. Negishi, K., Hoshino, S., Mukai, M., Tanaka, T. & Nakayama, S. (2008) Development and verification of a reactive transport model for long-term alteration of bentonite-cementseawater systems. Physics and Chemistry of the Earth, 33, S285–S294.Google Scholar
Yamaguchi, T., Negishi, K., Hoshino, S. & Tanaka, T. (2009a) Modeling of diffusive mass transport in micropores in cement based materials. Cement and Concrete Research, 39, 1149–1155.10.1016/j.cemconres.2009.08.012Google Scholar
Yamaguchi, T., Mitsumoto, Y., Kadowaki, M., Hoshino, S., Maeda, T., Tanaka, T., Nakayama, S., Marsal, F. & Pellegrini, D. (2009b) “Verification of a reactive transport model for long-tem alteration of cementclay systems based on laboratory experiments and in situ observation.” presented at XIV International Clay Conference, Castellaneta Marina, June 14 20, 2009.Google Scholar
Yamaguchi, T, Sawaguchi, T., Tsukada, M., Kadowaki, M. & Tanaka, T. (2012) “Changes in hydraulic conductivity of sand-bentonite mixtures accompanied with alkaline alteration.” presented at the 5th International Meeting on Clays in Natural & Engineered Barriers for Radioactive Waste Confinement, P/AP/AP/23, Montpellier, October 22–25, 2012.Google Scholar