Characterisation of corrosion of nuclear metal wastes encapsulated in magnesium silicate hydrate (MSH) cement
File(s)
Accepted version
Author(s)
Zhang, T
Cheeseman, C
Vandeperre, LJ
Type
Journal Article
Abstract
A novel low pH magnesium silicate hydrate cement system for encapsulating nuclear industry wastes have been developed using blends of MgO, silica fume (SF), MgCO3 and sand. Aluminium and Magnox swarf were encapsulated in both this new system and in a BFS/PC control system used in the nuclear industry. The interaction of the optimised mortar with the metal strips has been investigated, both in terms of rate of continued corrosion as well as the phases that form by reaction of the binder with different metal strips. Magnox swarf was better bound into the BFS/PC system than MgO/SF system whereas Al 1050 metal strips were bound better into the MgO/SF samples than into the BFS/PC reference mortar. No H2 generation was recorded when aluminium or magnox were encapsulated in the new binder, which is substantially better than what can be achieved with the reference system. Hence, the newly developed binder could potentially encapsulate mixtures of reactive metals better than the existing solution.
Date Issued
2012-12-03
Date Acceptance
2012-12-03
Citation
Ceramic Engineering and Science Proceedings, 2012, 33 (9), pp.159-167
ISSN
0196-6219
Publisher
Wiley
Start Page
159
End Page
167
Journal / Book Title
Ceramic Engineering and Science Proceedings
Volume
33
Issue
9
Copyright Statement
© 2013 The American Ceramic Society. All rights reserved. This is the accepted version of the following article: Zhang, T., Cheeseman, C. and Vandeperre, L. J. (2012) Characterisation of Corrosion of Nuclear Metal Wastes Encapsulated in Magnesium Silicate Hydrate (MSH) Cement, in Ceramic Materials for Energy Applications II (eds K. Fox, Y. Katoh, H.-T. Lin, I. Belharouak, M. Halbig and S. Mathur), John Wiley & Sons, Inc.,, which has been published in final form at http://dx.doi.org/10.1002/9781118217535.ch12.
Publication Status
Published