Comparative study of HTO diffusion on individual and coupled systems of compacted bentonite and fresh ordinary Portland cement paste
作者： Tomáš Rosendorf , Eva Hofmanová , Dušan Vopálka , Aleš Vetešník , Radek Červinka
DOI: 10.1016/J.APGEOCHEM.2018.08.006
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摘要: Abstract The radionuclide transport on the interface of compacted bentonite and cementitious materials has been rarely investigated. goal our project is to understand how processes at affect properties bentonite. paper describes methodology evaluation procedure applied HTO through-diffusion experiments bentonite/fresh hardened cement paste (coupled system). Under same experimental conditions, were performed individual compared in coupled system. To compare these two types experiments, samples saturated separately before start experiments. An original method modelling system was applied. effective diffusion coefficients both arrangements, coupled, found be a very good agreement. Based finding, prepared porous can considered applicable further planned studies interfaces. A less agreement, but still satisfactory, obtained for fresh paste.
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