In-situ, time resolved monitoring of uranium in BFS:OPC grout. Part 2: Corrosion in water

C. A. Stitt*, C. Paraskevoulakos, A. Banos, N. J. Harker, K. R. Hallam, H. Pullin, A. Davenport, S. Street, T. B. Scott

*Corresponding author for this work

Research output: Contribution to journalArticle (Academic Journal)

3 Citations (Scopus)
262 Downloads (Pure)

Abstract

To reflect potential conditions in a geological disposal facility, uranium was encapsulated in grout and submersed in de-ionised water for time periods between 2-47 weeks. Synchrotron X-ray Powder Diffraction and X-ray Tomography were used to identify the dominant corrosion products and measure their dimensions. Uranium dioxide was observed as the dominant corrosion product and time dependent thickness measurements were used to calculate oxidation rates. The effectiveness of physical and chemical grout properties to uranium corrosion and mobilisation is discussed and Inductively Coupled Plasma Mass Spectrometry was used to measure 238U(aq) content in the residual water of several samples.

Original languageEnglish
Article number9282
Number of pages12
JournalScientific Reports
Volume8
Issue number1
DOIs
Publication statusPublished - 18 Jun 2018

Fingerprint Dive into the research topics of 'In-situ, time resolved monitoring of uranium in BFS:OPC grout. Part 2: Corrosion in water'. Together they form a unique fingerprint.

  • Cite this