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Cemented matrices use in the storage of low and medium radioactive waste: Spanish experience

AuthorsGoñi Elizalde, Sara; Hernández, M. S.; Guerrero Bustos, Ana María
KeywordsRadioactive liquid waste
Cement based-materials
Issue DateNov-2009
AbstractWithin RECIMAT 09 supply that takes into account scientific and technological sectors in relation to different types of wastes, including radioactive, the objective of this work is to present a small part of an extensive research program supported by ENRESA (the official agency for the management of radioactive wastes in Spain). Cement based materials are being used generally as a solidification systems of wastes, and particularly, in the case of Spain, for low and medium radioactive wastes management in El Cabril repository (Córdoba). One of the aims of this investigation is to study the durability of some cement materials used in this repository, like compact cement matrices formed by ordinary Portland cement (OPC) and Boiling Water Reactor (BWR) simulated sulphate liquid waste: A (0,68 M) and B (2,05 M), as well as the pozzolanic backfilling mortars of the repository concrete containers. Leaching test of the matrices by means of the American National Standard (ANSI/ANS-16.1.19869); Köch-Steinegger durability test and ASTM C452-88 standardized test with the backfilling mortar of the repository are the most important tests carried out with these cement based materials. To accelerate the attack process, all testing processes have been performed at 40º C.
DescriptionEn: 1st Spanish National Conference on Advances in Materials Recycling and Eco – Energy Madrid, 12-13 November 2009.-- Editors: F. A. López, F. Puertas, F. J. Alguacil and A. Guerrero.-- 4 pages, 5 figures, 1 table.
Appears in Collections:(IETCC) Comunicaciones congresos
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