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Author Sakr, K. ♦ Sayed, M. S. ♦ Hafez, N.
Source United States Department of Energy Office of Scientific and Technical Information
Content type Text
Language English
Subject Keyword MATERIALS SCIENCE ♦ NUCLEAR FUELS ♦ CEMENTS ♦ KAOLINITE ♦ RADIOACTIVE WASTE PROCESSING ♦ LOW-LEVEL RADIOACTIVE WASTES ♦ CEMENTING ♦ PHYSICAL PROPERTIES ♦ MECHANICAL PROPERTIES ♦ RADIATION EFFECTS ♦ GAMMA RADIATION ♦ LEACHING ♦ CESIUM 137 ♦ COBALT 60
Abstract Comparison between the properties of cement and cement mixed with 7.5% kaolinite was performed to choose the most suitable matrix to incorporate radioactive wastes. The cement-kaolinite mixtures were prepared as uncured, cured, and heated specimens. The physical properties of the cement-kaolinite mixture, namely density, porosity, and water absorption percent, were determined. Compressive strength, infrared spectra, thermal analysis, and the effect of gamma rays on the samples were studied. The studies were extended to the cement-kaolinite mixture in the presence of some chemical additives at different concentrations. Leachability of radioactive isotopes from the cement-kaolinite mixture was measured as a function of time. The physical and mechanical properties of cement were decreased in the presence of 7.5% kaolinite, whereas {sup 137}Cs and {sup 60}Co were less leached from the cement-kaolinite mixture.
ISSN 00088846
Educational Use Research
Learning Resource Type Article
Publisher Date 1997-12-01
Publisher Place United States
Journal Cement and Concrete Research
Volume Number 27
Issue Number 12


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