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POLYMER ADDITIVES EFFECT ON THE DYNAMIC VISCOSITY OF BITUMINOUS MATRICES USED FOR RADIOACTIVE WASTE FIXATION

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Author(s): Michaela Svitoková | Pavol Daučík

Journal: Petroleum and Coal
ISSN 1337-7027

Volume: 52;
Issue: 1;
Start page: 11;
Date: 2010;
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Keywords: Fixation of radioactive waste | bitumination | polymer modifiers | dynamic viscosity.

ABSTRACT
One way of fixation of radioactive waste is bitumination. In this process a certain quantity ofradioactive waste (ion exchangers, slurry, concentrate) is fixed in to the heated bitumen.Solidification of radioactive wastes in bitumen matrix significantly affects the viscosity. To improvethe viscosity properties of bitumen matrix are used polymer modifiers additives. The articlepresents the results of monitoring the impact of the concentration of polymer additives on thedynamic viscosity of the bitumen matrix at temperatures of 80° C to 150° C.
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