Books > Professional & Technical > Energy technology & engineering > Nuclear power & engineering
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Radionuclide and Metal Sorption on Cement and Concrete (Hardcover, 1st ed. 2016)
Loot Price: R3,051
Discovery Miles 30 510
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Radionuclide and Metal Sorption on Cement and Concrete (Hardcover, 1st ed. 2016)
Series: Topics in Safety, Risk, Reliability and Quality, 29
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Cementitious materials are being widely used as
solidification/stabilisation and barrier materials for a variety of
chemical and radioactive wastes, primarily due to their favourable
retention properties for metals, radionuclides and other
contaminants. The retention properties result from various mineral
phases in hydrated cement that possess a high density and diversity
of reactive sites for the fixation of contaminants through a
variety of sorption and incorporation reactions. This book presents
a state of the art review and critical evaluation of the type and
magnitude of the various sorption and incorporation processes in
hydrated cement systems for twenty-five elements relevant for a
broad range of radioactive and industrial wastes. Effects of cement
evolution or ageing on sorption/incorporation processes are
explicitly evaluated and quantified. While the immobilisation of
contaminants by mixing-in during hydration is not explicitly
addressed, the underlying chemical processes are similar. A
quantitative database on the solid/liquid distribution behaviour of
radionuclides and other elements in hydrated cement systems is
established on the basis of a consistent review and re-evaluation
of literature data. In addition to recommended values, all
underlying original experimental data and key experimental info
rmation are provided, which allows users to trace the given
recommendations or to develop their own set of key values. This
database is closely tied to the safety analysis of near surface
disposal of radioactive waste in Belgium. It focuses on
radioelements, toxic stable elements and heavy metals, which makes
it relevant for investigations involving the interaction of
radioactive and conventional contaminants with cement-based
barriers.
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