Gashier, W., Miura, T., Hashimoto, K. et al. (2 more authors) (2014) Leaching behaviour of cementitious nuclear wasteforms containing caesium and strontium. Advances in Applied Ceramics, 113 (8). pp. 447-452. ISSN 1743-6753
Abstract
The leaching behaviour and physicochemical properties of cementitious nuclear wasteforms containing caesium and strontium waste simulants has been investigated. The cement wasteform consisted of a 9∶1 blend of blast furnace slag and ordinary Portland cement. Both non-loaded samples and samples that were waste loaded with 3 wt-% caesium and strontium added as nitrates have been studied. The cement hydration phases in the samples were identified, and the porosity and microstructure were analysed before leaching. The samples were leached for up to 6 months and the leached elements quantified. In the waste loaded cements, portlandite was not formed, and the monosulphate AFm phase appeared to be altered by the incorporation of the Sr(NO3)2. Incorporation of Cs and Sr also resulted in the increase in the leach rate of Ca2+.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2014 Taylor & Francis. This is an author produced version of a paper subsequently published in Advances in Applied Ceramics. Uploaded in accordance with the publisher's self-archiving policy. |
Keywords: | Cement; Waste encapsulation; Leaching; Caesium; Strontium; Monosulphate |
Dates: |
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Institution: | The University of Sheffield |
Academic Units: | The University of Sheffield > Faculty of Engineering (Sheffield) > Department of Materials Science and Engineering (Sheffield) |
Depositing User: | Symplectic Sheffield |
Date Deposited: | 18 Aug 2016 15:00 |
Last Modified: | 25 Oct 2016 14:02 |
Published Version: | http://dx.doi.org/10.1179/1743676114Y.0000000146 |
Status: | Published |
Publisher: | Taylor & Francis |
Refereed: | Yes |
Identification Number: | 10.1179/1743676114Y.0000000146 |
Related URLs: | |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:97728 |