Application of Void-Free Filling Technology for Additional Safety Barriers Creation during Uranium-Graphite Reactors Decommissioning

Andrey Izmestiev; Alexander Pavliuk; Sergey Kotlyarevsky

doi:10.4028/www.scientific.net/AMR.1084.613

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 1084Application of Void-Free Filling Technology for...

Application of Void-Free Filling Technology for Additional Safety Barriers Creation during Uranium-Graphite Reactors Decommissioning

Abstract:

The paper presents the results of the best material selection for additional safety barrier construction during uranium-graphite reactors decommissioning. The research findings show that the best material for safety barriers is clay-containing natural material of various types with counter-migrational and counter-filtrational qualities. We have demonstrated a technology for void-free filling of cavities in the reactor space of under-decommissioning uranium-graphite reactors on the site of JSC Pilot and Demonstration Center for Decommissioning of Uranium-Graphite Nuclear Reactors (PDC UGR). This will make it possible to construct reliable man-made geo-barriers and prevent the release of radionuclides from the repository into the environment for thousands of years.

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Periodical:

Advanced Materials Research (Volume 1084)

Pages:

613-619

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.1084.613

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Online since:

January 2015

Authors:

Andrey Izmestiev, Alexander Pavliuk*, Sergey Kotlyarevsky

Keywords:

Clay-Content Material, Decommissioning, Graphite Radwaste, Man-Made Barriers, Uranium-Graphite Reactors, Void-Free Filling Technology

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References

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