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Nuclear Waste Immobilization in Cement-Based Materials: Overview of French Studies

  • Rosemarie Atabek (a1), Pascal Bouniol (a1), Eliane Revertegat (a1), Jean Oliver (a1), Philippe Gegout (a1) and Michel Jorda (a1)...

Abstract

An overview of the different problems to be solved for waste form disposal in a shallow-land burial site is presented. Examples of cementbased materials used to immobilize concentrates are given in relation to cement chemistry. Experimental studies, undertaken to assess concrete durability, obviously indicate that pH is the starting parameter of chemical degradation reactions. It is found that blended cement (CLC) has a better cesium retention ability and a stronger resistance to chloride and sulfate attack than Portland cement.

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1.Règles Fondamentales de Sûreté - Règle n° 1.2 -SIN A n° 3309/84 (Juin 1984)
2.Règles Fondamentales de Sûreté - Règle n° III.2.e -SIN Paris n° 3948/86 (Octobre 1986)
3. Bouniol, P.E., Peyre, C.H., Mattus, A.J., Pitt, W.W. in DOE Model Conference edited by Martin Marietta Energy Systems, INC. (Oak-Ridge, Oct. 1988) pp. 15191528
4. Bouniol, P.E., Peyre, C.H., Mattus, A.J., Nucl. Tech. (unpublished)
5. Revertegat, E., Bernaudat, F., in 8th International Congress of the Chemistry of Cement, Theme 4, 5, pp. 3540
6. Bernaudat, F., Revertegat, E., ibid, pp. 4146
7. Buil, M., Revertegat, E., Oliver, J., in Second International Synmosium on Stabilization/Solidification of Hazardous. Radioactive and Mixed Wastes (Williamsburg, May 1990)

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