Appraisal of a cementitious material for waste disposal: neutron imaging studies of pore structure and sorptivity

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dc.contributor.authorMcGlinn, PJen_AU
dc.contributor.authorde Beer, FCen_AU
dc.contributor.authorAldridge, LPen_AU
dc.contributor.authorRadebe, MJen_AU
dc.contributor.authorNshimirimana, Ren_AU
dc.contributor.authorBrew, DRMen_AU
dc.contributor.authorPayne, TEen_AU
dc.contributor.authorOlufson, KPen_AU
dc.date.accessioned2010-07-20T02:56:02Zen_AU
dc.date.available2010-07-20T02:56:02Zen_AU
dc.date.issued2010-08en_AU
dc.date.statistics2010-08en_AU
dc.description.abstractCementitious materials are conventionally used in conditioning intermediate and low level radioactive waste. In this study a candidate cement-based wasteform has been investigated using neutron imaging to characterise the wasteform for disposal in a repository for radioactive materials. Imaging showed both the pore size distribution and the extent of the cracking that had occurred in the samples. The rate of the water penetration measured both by conventional sorptivity measurements and neutron imaging was greater than in pastes made from Ordinary Portland Cement. The ability of the cracks to distribute the water through the sample in a very short time was also evident. The study highlights the significant potential of neutron imaging in the investigation of cementitious materials. The technique has the advantage of visualising and measuring, non-destructively, material distribution within macroscopic samples and is particularly useful in defining movement of water through the cementitious materials. © 2010 Crown Copyright published by Elsevier Ltd.en_AU
dc.identifier.citationMcGlinn, P. J., de Beer, F. C., Aldridge, L. P., Radebe, M. J., Nshimirimana, R., Brew, D. R. M., Payne, T. E., & Olufson, K. P., (2010). Appraisal of a cementitious material for waste disposal: neutron imaging studies of pore structure and sorptivity. Cement and Concrete Research, 40(8), 1320-1326. doi:10.1016/j.cemconres.2010.03.011en_AU
dc.identifier.govdoc1922en_AU
dc.identifier.issn0008-8846en_AU
dc.identifier.issue8en_AU
dc.identifier.journaltitleCement and Concrete Researchen_AU
dc.identifier.pagination1320-1326en_AU
dc.identifier.urihttp://dx.doi.org/10.1016/j.cemconres.2010.03.011en_AU
dc.identifier.urihttp://apo.ansto.gov.au/dspace/handle/10238/1822en_AU
dc.identifier.volume40en_AU
dc.language.isoenen_AU
dc.publisherElsevieren_AU
dc.subjectWaste disposalen_AU
dc.subjectPore structureen_AU
dc.subjectSorptive propertiesen_AU
dc.subjectCementsen_AU
dc.subjectConcretesen_AU
dc.subjectNeutronsen_AU
dc.titleAppraisal of a cementitious material for waste disposal: neutron imaging studies of pore structure and sorptivityen_AU
dc.typeJournal Articleen_AU
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