Applying laboratory methods for durability assessment of vitrified material to archaeological samples

Abstract

Laboratory testing used to assess the long-term chemical durability of nuclear waste forms may not be applicable to disposal because the accelerated conditions may not represent disposal conditions. To address this, we examine the corrosion of vitrified archeological materials excavated from the near surface of a ~1500-year old Iron Age Swedish hillfort, Broborg, as an analog for the disposal of vitrified nuclear waste. We compare characterized site samples with corrosion characteristics generated by standard laboratory durability test methods including the product consistency test (PCT), the vapor hydration test (VHT), and the EPA Method 1313 test. Results show that the surficial layer of the Broborg samples resulting from VHT displays some similarities to the morphology of the surficial layer formed over longer timescales in the environment. This work provides improved understanding of long-term glass corrosion behavior in terms of the thickness, morphology, and chemistry of the surficial features that are formed.

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Item Type:	Article
Authors/Creators:	Nava-Farias, L. Neeway, J.J. Schweiger, M.J. Marcial, J. Canfield, N.L. Pearce, C.I. Peeler, D.K. Vicenzi, E.P. Kosson, D.S. Delapp, R.C. McCloy, J.S. Walling, S.A. Thorpe, C.L. Corkhill, C.L. https://orcid.org/0000-0002-7488-3219 Hand, R.J. https://orcid.org/0000-0002-5556-5821 Sjöblom, R. Kruger, A.A.
Copyright, Publisher and Additional Information:	© The Author(s) 2021. Open Access: This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.
Dates:	Published: 12 November 2021 Published (online): 12 November 2021 Accepted: 18 October 2021
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:	15 Nov 2021 12:42
Last Modified:	15 Nov 2021 12:42
Status:	Published
Publisher:	Springer Science and Business Media LLC
Refereed:	Yes
Identification Number:	10.1038/s41529-021-00204-2
Open Archives Initiative ID (OAI ID):	oai:eprints.whiterose.ac.uk:180428

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Applying laboratory methods for durability assessment of vitrified material to archaeological samples

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