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Interactions between simulant vitrified nuclear wastes and high pH solutions: a natural analogue approach

Mann, Colleen; Thorpe, Clare; Milodowski, Antoni E.; Field, Lorraine P.; Shaw, Richard P.; Boast, Luke; Hand, Russell; Hyatt, Neil C.; Provis, John L.; Corkhill, Claire L.. 2017 Interactions between simulant vitrified nuclear wastes and high pH solutions: a natural analogue approach. MRS Advances, 2 (12). 669-674. https://doi.org/10.1557/adv.2017.59

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Abstract/Summary

This study details the characterization of a glass sample exposed to hyperalkaline water and calcium-rich sediment for an extended time period (estimated as 2 - 70 years) at a lime (CaO) waste site in the UK. We introduce this site, known as Peak Dale, in reference to its use as a natural analogue for nuclear waste glass dissolution in the high pH environment of a cementitious engineered barrier of a geological disposal facility. In particular, a preliminary assessment of alteration layer chemistry and morphology is described and the initiation of a long-term durability assessment is outlined.

Item Type: Publication - Article
Digital Object Identifier (DOI): https://doi.org/10.1557/adv.2017.59
ISSN: 2059-8521
Date made live: 05 Jan 2018 14:50 +0 (UTC)
URI: http://nora.nerc.ac.uk/id/eprint/518896

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