The interaction between nuclear waste glass and cement

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Abstract

The interaction between simulated reference waste glasses SON68 and SM539 and cement has been studied in suspensions of Ordinary Portland Cement and synthetic young cement water with pH 13.5 at 30°C. The cement appears to trigger glass dissolution by consumption of glass matrix components. This leads to fast glass dissolution at a constant rate with formation of a porous gel layer on the glass. This is probably due mostly to the reaction of Si from the glass with portlandite, forming CSH phases. After consumption of the portlandite, the glass alteration rate is expected to decrease.

Details

Original languageEnglish
Title of host publicationProceedings 1st International Symposium on Cement-based Materials for Nuclear Wastes. NUWCEM 2011
Place of PublicationMarcoule, France
Pages1-11
Publication statusPublished - Oct 2011
Event1st International Symposium on Cement-based Materials for Nuclear Wastes. NUWCEM 2011 - CEA énergie atomique – énergie alternative and SFEN, Avignon, France
Duration: 11 Oct 201113 Oct 2011

Conference

Conference1st International Symposium on Cement-based Materials for Nuclear Wastes. NUWCEM 2011
Country/TerritoryFrance
CityAvignon
Period2011-10-112011-10-13

Keywords

  • Waste Glass, vitrified waste, Supercontainer, cement, SON68, SM539

ID: 249151