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Barlow, S.T. (author), Stennett, M.C. (author), Hand, R.J. (author), Morgan, S.P. (author), Hyatt, N.C. (author)
Magnox sludge waste is a major radiological hazard which needs containing. Vitrification is a viable alternative to the current baseline plan and is demonstrated here. Significant quantities of uranium and magnesium metal were successfully digested into glass melts and mostly amorphous material formed. Dissolution of the glass samples was found...
conference paper 2016
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Fugaru, V. (author), Postolache, C. (author), Tuca, C. (author), Dragusin, M. (author), Ionescu, E. (author), Deja, R. (author)
Our paper aims to presents the experiments which were performed in order to determine the 14'C and 3H accumulation during the functioning time of about 50 years in the thermal column of VVR-S reactor. A new facility and method for determination of tritium (^H or T) and radiocarbon (^''C) in incinerable solid wastes are described. The protocol...
conference paper 2016
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van den Eijnden, A.P. (author), Bésuelle, P. (author), Collin, F. (author), Chambon, R. (author), Desrues, J. (author)
The principle of deep geological repositories for the disposal of radioactive waste relies among others on the low permeability of the host rock. As the permeability is influenced by mechanical damage of the material, the coupling between hydraulic and mechanical behaviour of the host rock is of importance in the study of radioactive waste...
conference paper 2016
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Buragohain, P. (author), Vardon, P.J. (author), Hicks, M.A. (author)
Disposal of spent nuclear fuel and long lived radioactive waste in deep clay geological formations is one of the promising options worldwide. In this concept of the geological disposal system, the Boom Clay is considered as a potential host rock when designing a generic waste repository in the Netherlands. For design and evaluation of a...
conference paper 2016
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Damians, I.P. (author), Olivella, S. (author), Pintado, X. (author)
Ttie KBS-3H alternative is composed by horizontally placed supercontainers comprising the canisters with the nuclear spent fuel surrounded by compacted bentonite bloclcs (buffer) enclosed in a perforated metal shell. The gaps between the supercontainers and blocks and the host rock have direct effects on the buffer behaviour. This paper presents...
conference paper 2016
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Rawat, A. (author), Baille, W. (author), Schanz, T. (author)
The deep geological disposal concept is considered as a viable option for permanent disposal for high level radioactive waste. In this concept, the waste canisters are buried in a stable geological media with multi layer engineered barriers. The functionality of each component of such engineered barrier systems must be ensured for entire design...
conference paper 2016
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Klaver, J. (author), Schmatz, J. (author), Desbois, G. (author), Hemes, S. (author), Urai, J.L. (author)
Characterization of the microstructure and pores in fine-grained geo-materials like mudstones is challenging because of their heterogeneity and small pore sizes. Combining Broad Ion Beam (BIB) polishing and Scanning Electron Microscopy (SEM) enables the visualization of microstructure and pores from millimetres down to a few nanometres in size....
conference paper 2016
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Zaffora, B. (author), Magistris, M. (author)
conference paper 2016
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Following from the successful inaugural PhD conference in radioactive waste management and disposal held in Nancy, France in 2015, the 2nd conference in this series was held in Delft, the Netherlands. This unique event intend brought together PhD students and early-stage researchers, alongside professionals and academics in the topic of...
conference 2016
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Kuo, V. (author)
There are great challenges gauging the relevance of knowledge, skills and competences (KSCs) provided in nuclear education and that of the industry needs. This is amplified by the difficulties within industry to efficiently identify the KSC typology depicted by the professional communities of practice (CoPs) within organizations. This study...
conference paper 2016
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Sun, H. (author), Mašín, D. (author), Boháč, J. (author)
Compacted bentonite is often planned as an engineered barrier material between host rock and canister in nuclear waste disposal repositories thanks to its favourable swelling characteristics and low permeability. This study deals with the effects of initial dry density and vertical stress on the swelling behaviour of compacted bentonite under...
conference paper 2016
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Brynych, V. (author), Kolomá, K. (author), Havlová, V. (author)
Results of radionuclide batch sorption experiments for Czech rock samples will be present on the poster. Sorption of radionuclides, relevant for deep geological repository (DGR) safety (137Cs, Se, U), will be studied on granitic rock material from DGR potential site.
conference paper 2016
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Ghiadistri, G.M. (author)
A numerical study of MX-80 bentonite confined hydration has been carried out. The results have been analysed in the light of the limits of applicability of the constitutive model used, a modified Barcelona Basic Model, and the available experimental data to characterise the material.
conference paper 2016
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Molinero Guerra, A. (author), Mokni, N. (author), Cui, Y-J. (author), Tang, A.M. (author), Delgade, P. (author), Aimedieu, P. (author)
The MX80 powder/pellets mixture is one of the candidate sealing plugs used in deep radioactive waste disposal because of its swelling properties and operational advantages (lower compaction effort, reduced gaps between the rock and the seal). The present work focuses on the microscopic scale of the material, which is studied using several...
conference paper 2016
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Barátová, D. (author), Nečas, V. (author)
The results on the analysis of radionuclide release from the geosphere of hypothetical repository in crystalline rocks are presented. Radionuclides with poor retentive properties (C-14, I-129, Cl-36, Cs-135), represent the largest contribution to the total release rate from the geosphere. The release rates of radionuclides with low solubility...
conference paper 2016
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Liu, Z. (author), Shao, J. (author), Tang, Y. (author)
An experimental study was carried out on the time-dependent mechanical and transport behaviors of the Callovo-Oxfordian (Cox) argillite, the geological barriers for high-level radioactive waste disposal in France. Six coupled one-step creep tests under the same confining pressure 6MPa and different deviatoric stresses were proposed to...
conference paper 2016
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Pouya, A. (author), Trivellato, E. (author), Vu, M.N. (author)
The aim of this work is to investigate the contribution of an elastic-damage model to describe the evolution and asymmetries sometimes noticed in the failure zone around tunnels. The numerical simulations for deep tunnels excavated in the Callovo-Oxfordian claystone showed that a damage mechanics model can explain certain phenomena regarding the...
conference paper 2016
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Schmehl, R. (author)
conference paper 2016
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Pardal, T. (author), Silva, P. (author)
conference paper 2016
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Harnessing culture and technology for sustainable development, good governance and innovative technology transfer
conference 2015
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