NDLI: Characterisation of Full-Scale Inactive Cement-Based Intermediate Level Nuclear Wasteforms After One Decade of Storage

Content Provider	The American Society of Mechanical Engineers (ASME) Digital Collection
Author	Robert, J. Caldwell Newton, J. Bowmer Edward, J. Butcher Godfrey, I. Hugh
Copyright Year	2004
Abstract	This paper presents the results of a laboratory-based programme to characterise full-scale, 500L cement-based wasteforms stored for over a decade. The wasteforms were prepared from inactive intermediate level waste (ILW) simulants, representing a range of ferric-based flocs produced during spent fuel reprocessing, using a blended ordinary Portland cement (OPC) / pulverised fuel ash (PFA) grout. The characterisation includes petrographic analysis, determination of moisture/density relationships, acid neutralisation capacity (ANC), and extraction analysis as a function of depth. The results of the study, conducted on full depth cores, indicate that the chosen matrix was well suited to the ferric floc waste that it was designed to contain. Carbonation and desiccation of the high water/solids wasteforms was limited to the near surface and the beneficial morphological and chemical characteristics of the matrix showed very little spatial variability.
Sponsorship	Nuclear Engineering Division
Starting Page	681
Ending Page	689
Page Count	9
File Format	PDF
ISBN	0791846881
DOI	10.1115/ICONE12-49072
e-ISBN	0791837351
Volume Number	12th International Conference on Nuclear Engineering, Volume 2
Conference Proceedings	12th International Conference on Nuclear Engineering
Language	English
Publisher Date	2004-04-25
Publisher Place	Arlington, Virginia, USA
Access Restriction	Subscribed
Subject Keyword	Intermediate level waste (ilw) Stabilisation/solidification Longevity Ferric floc Extended storage Water Cements (adhesives) Storage Flocs And chemical characteristics Spent nuclear fuels Solids Atomic Molecular Fuels Density Solidification
Content Type	Text
Resource Type	Article

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