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Retardation of Cs + and Cl − Diffusion Using Blended Cement Admixtures
Author(s) -
KUMAR A.,
ROY B. D. M.
Publication year - 1986
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1151-2916.1986.tb04747.x
Subject(s) - chloride , cement , caesium , silica fume , materials science , ion , thermal diffusivity , diffusion , curing (chemistry) , ground granulated blast furnace slag , slag (welding) , metallurgy , corrosion , nuclear chemistry , inorganic chemistry , radiochemistry , composite material , chemistry , physics , organic chemistry , quantum mechanics , thermodynamics
Diffusion of cesium chloride through thin plates of hardened cement pastes was studied. Blast‐furnace slag and condensed silica fume were used as blending admixtures in an attempt to retard the diffusion of cesium and chloride ions. The curing and diffusion temperatures were varied from 27° to 60°C, and the water/solid ratio was varied from 0.30 to 0.40. Results indicate that the cesium ion diffuses more slowly than the chloride ion in hardened cement paste systems. Blending admixtures caused a further reduction in diffusivity for both ions, which is important for preventing corrosion or restricting radionuclide transport.