P. V. Kozlov, S. M. Shaidullin, K. A. Feoktistov, D. V. Markova, R. Ya. Akhtyamov, R. M. Akhmed’yanov
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Promising Dry Mix Formulations for Cementation of the Solution Fraction of the Accumulated Alkaline High-Level Waste
Cement mortars and compounds prepared in the course of the development of a process for solidification of the solution fraction of alkaline high-level waste (HLW) accumulated at the Mayak Production Association were studied. Only materials commercially available in Russia were included in dry mix formulations. The spread, bleeding, final setting, and heat release were determined for model inactive cement mortars, and the compression strength, frost resistance, and water resistance, for the compounds. The 137Cs leach rate was determined for the cement compounds with real solidified high-level solutions. The formulation meeting the whole set of regulatory and technological requirements to cemented radioactive waste, provided that the compound is placed in limited-volume containers (e.g., in NZK-type containers), was developed.
期刊介绍：
Radiochemistry is a journal that covers the theoretical and applied aspects of radiochemistry, including basic nuclear physical properties of radionuclides; chemistry of radioactive elements and their compounds; the occurrence and behavior of natural and artificial radionuclides in the environment; nuclear fuel cycle; radiochemical analysis methods and devices; production and isolation of radionuclides, synthesis of labeled compounds, new applications of radioactive tracers; radiochemical aspects of nuclear medicine; radiation chemistry and after-effects of nuclear transformations.
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