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A mathematical model of diffusion of calcium hydroxide in the system concrete barrier–ambient environment was developed to determine the influence of corrosion processes of the first and second kinds, engendered by water and radionuclides, on the lifetime of a concrete barrier of a decommissioned commercial uranium-graphite reactor. The CaOH distribution over the thickness of the barrier in a single...
A mathematical model of the diffusion of radionuclides through engineered safety barriers is developed for 14C in order to determine the long-term safety conditions and characteristics of a decommissioned commercial uranium-graphite reactor. Dry and wet mixtures and concrete are used as the barrier materials. Diffusion is studied as the dominant mechanism for the transport of the radionuclides. The...
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