Published 12 issues per year
ISSN Print: 1091-028X
ISSN Online: 1934-0508
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Immobilization of 137Cs and 60Co in a Concrete Matrix. Part Two: Mathematical Modeling of Transport Phenomena
ABSTRACT
Our previous work has evaluated the leaching of 137Cs and 60Co from a waste composite into a surrounding fluid and the determination of retardation factors, KF, and coefficients of distribution, kd, using a simplified mathematical model for analyzing the migration of radionuclides. In our experiment, we have analyzed the mechanism of 137Cs and 60Co leaching values during a period of 60 days. Particularly, we have investigated here the latter modified scenario. Transport phenomena involved in the leaching of a radioactive material from a cement composite matrix are investigated using an empirical method employing a polynomial equation. Results presented in this paper are examples of results obtained in a 25-year mortar and concrete testing project, which will influence the design of the engineered trenches system for a future central Serbian radioactive waste storage center.
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Abdel Rahman Rehab O., Ojovan Michael I., Recent Trends in the Evaluation of Cementitious Material in Radioactive Waste Disposal, in Natural Resources and Control Processes, 2016. Crossref