Abstract
Portland cement was mixed with kaolinite clay and epoxy polymer at different ratios to immobilize radioactive waste ions. The physical and mechanical properties of the mixtures in presence and in absence of some chemicals were investigated. Thermal analysis and infrared spectra of each mixture were also determined. The release of radioactive ions from cement, kaolinite clay, polymer mixture was studied. The presence of 7.5% kaolinite and 6% epoxy polymer increased the mechanical strength of cement mixed by 40% water, and decreased leachability of ions from mixture. Studies were also performed on a mixture of cement and 7.5% kaolinite cubes coated with a layer of epoxy polymer. Leachability of ions from these samples was decreased. A proposed container was designed to prevent release of ions from the immobilized matrix to the environment.
Similar content being viewed by others
References
International Atomic Energy Agency, Conditioning of Low and Intermediate-level Radioactive Wastes, Technical Reports Series No. 222, IAEA, Vienna, 1983, p. 186.
J. Godardi,L. Jalli, Natural Zeolites Minerals and Rocks, Vol. 18, 1985, p. 25.
International Atomic Energy Agency, Use of Local Minerals in Treatment of Radioactive Wastes, Safety Series, IAEA, Vienna, 1972, p. 123..
International Atomic Energy Agency, Immobilization of Low and Intermediate Level Radioactive Waste in Polymer, Technical Report Series, Vol. 289, IAEA, Vienna, 1988.
J. P. Agrawal,N. M. Bhide,S. R. Naidu, J. Thermal Anal., 39 (1993) 351.
American Society for Testing and Materials, The Standard Specification for Concrete Aggregates, ASTM C-33, 1992.
International Atomic Energy Agency, Leach testing of Immobilized Radioactive Waste,E. D. Hespe (Ed.), At. Energy Rev., 9 (1971) No. 1, 195.
M. B. Hafez,F. I. A. Said, Egypt. J. Rad. Sci., Appl. 3. (1986) No. 2, 193.
E. T. Stepkowska, J. Thermal Anal., 42 (1994) 41.
International Atomic Energy Agency, Management of Radioative Waste in Polymer, Safety Series No. 89, IAEA, Vienna, 1988.
L. J. Bellamy, The Infrared Spectra of Complex Molecules, Vol. 1, Methuen, London, 3rd ed., 1975.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Sakr, K., Sayed, M.S. & Hafez, M.B. Immobilization of radioactive waste in mixture of cement, clay and polymer. Journal of Radioanalytical and Nuclear Chemistry 256, 179–184 (2003). https://doi.org/10.1023/A:1023908628020
Issue Date:
DOI: https://doi.org/10.1023/A:1023908628020