Experimental Investigation of Concrete Packages for Radioactive Waste Management: Permeability and Influence of Junctions |
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| Authors: | Stéphane Poyet Xavier Bourbon |
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| Affiliation: | 1. CEA, DEN, DPC, SECR, Laboratoire d??Etude du Comportement des B??tons et des Argiles, 91191, Gif sur Yvette Cedex, France
2. ANDRA, Parc de la Croix Blanche, 1-7 rue Jean Monnet, 92298, Chatenay-Malabry Cedex, France
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| Abstract: | We studied the feasibility of a concrete package for radioactive waste management in a joint program involving Andra (the French agency for radioactive waste management) and CEA (the French atomic energy commission). The package??s long-term durability and radionuclides?? containment were the major concerns. The presence of junctions between the prefabricated body and the poured-in-place lids was identified as a major weakness. The first objective of this study was to characterize the permeability of the selected concrete and of the package itself (that is to say accounting for the junctions influence). We used special specimens including a junction, and tested three different surface preparation methods. The second objective was to assess the influence of the manufacturing conditions (laboratory and industrial) on permeability. |
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