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On the structural stability of montmorillonite submitted to heavy γ-irradiation

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Clays and Clay Minerals

Abstract

The effect of heavy doses (up to 200 Mrad) of γ-radiation on the short-range structural organization in montmorillonite was studied using infrared (IR) spectroscopy and solid-state high-resolution 27Al and 29Si nuclear magnetic resonance (NMR). No change attributable to irradiation was observed. A small variation in the water content was noted but it is not systematic. The results show that the montmorillonite structure can accumulate high doses of radiation without damage and therefore this clay is a suitable material for use in the safe disposal of radioactive waste.

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References

  • Bonne, A.A. and Heremans, R.H. (1982) Investigation on the Boom Clay, a candidate host rock for final disposal of high level solid waste. Proceedings of the International Clay Conference 1981 (H. Van Olphen and F. Veniale, editors). Developments in Sedimentology, 35, 799–818. Elsevier, Amsterdam.

    Google Scholar 

  • Clozel, B., Allard Th. and Muller, J.-P. (1994) Nature and stabilization of radiation-induced defects in natural kaolinites: new results and a reappraisal of published works. Clays and Clay Minerals, 42, 657–666.

    Article  Google Scholar 

  • Dayal, R. and Wilke, R.J. (1982) Role of clay minerals as backfill in radioactive waste disposal. Proceedings of the International Clay Conference 1981 (H. Van Olphen and F. Veniale, editors). Developments in Sedimentology, 35, 771–788. Elsevier, Amsterdam.

    Google Scholar 

  • Engelhardt, G. and Michel, D. (1987) High-resolution Solidstate NMR of Silicates and Zeolites. Wiley, New York.

    Google Scholar 

  • Fripiat, J.J. (1988) High resolution solid-state NMR study of pillared clays. Catalysis Today, 2, 281–295.

    Article  Google Scholar 

  • Tamura, T. (1966) Development and applications of minerals in radioactive waste disposal. Proceedings of the International Clay Conference 1966, Jerusalem (L. Heller and A. Weiss, editors). Israel Program for Scientific Translation.

  • Van Olphen, H. and Fripiat, J.J. (1979) Data Handbook for Clay Materials and Other Non-Metallic Minerals. Pergamon Press, Oxford, UK.

    Google Scholar 

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Correspondence to Jose J. Fripiat.

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Negron, A., Ramos, S., Blumenfeld, A.L. et al. On the structural stability of montmorillonite submitted to heavy γ-irradiation. Clays Clay Miner. 50, 35–37 (2002). https://doi.org/10.1346/000986002761002649

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  • DOI: https://doi.org/10.1346/000986002761002649

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