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The Leaching Of The Reactive Powder Concretes: Results On Transfer Properties

Published online by Cambridge University Press:  10 February 2011

V. Matite  and
M. Moranville
V. Matite
Affiliation:
Laboratoire de Mécanique et Technologie, ENS Cachan, 94235 Cachan CEDEX, France Bouygues, Direction Scientifique, Challenger, 78061 St-Quentin-Yvelines CEDEX, France Laboratoire d'études des matériaux, CEA Saclay, 91191 Gif-sur-Yvette, France
M. Moranville
Affiliation:
Laboratoire de Mécanique et Technologie, ENS Cachan, 94235 Cachan CEDEX, France
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Abstract

The properties of concrete can be altered in aggressive media such as pure water. A leaching test was performed for Reactive Powder Concretes (RPC) in order to evaluate their durability when used as storage of nuclear wastes. Emphasis is placed on the changes of their microstructure, on the tritium diffusion coefficient and on the porosity after leaching. Using mainly non destructive techniques such as SEM, BET and diffusion cell, we found that the leaching affects the RPC microstructure, particularly the anhydrous cement grains. The tritium diffusion coefficient, even lower than that of granite, is however ten times higher after a three month-leaching.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 503: Symposium JJ – Nondestructive Characterization of Materials in Aging Systems , 1997 , 145
Copyright
Copyright © Materials Research Society 1998

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References

REFERENCES

1. Richard, P. and Cheyrezy, M., Cement and Concrete Research 25, 1501–1511 (1995)Google Scholar
2. Adenot, F. and Buil, M., Cement and Concrete Research 22, 489–496 (1992).Google Scholar
3. Richet, C., PhD thesis, Orsay University (France), 1992.Google Scholar
4. Bourdette, B., PhD thesis, INSA Toulouse (France), 1994.Google Scholar
5. Baroghel-Bouny, V. and Chaussadent, T., Bull. Liaison Labo. P. et Ch., 187, 69–75 (1993).Google Scholar
6. Korb, J.-P., Petit, D., Philippot, S., Zanni, H., Maret, V., Cheyrezy, M., in Nuclear Magnetic Resonance Spectroscopy of Cement-based Materials, edited by Colombet, P. (Springier Verlag, Berlin 1997), (in press).Google Scholar