SHIELDING COMPOSITE BUILDING MATERIALS WITH A LOW INTERNAL LEVEL OF IONISING RADIATION
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Jan 30, 2014
app pub date -
Jul 12, 2013
filing date -
Jul 12, 2012
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Specific activity of radionuclides contained in the shielding composite building materials and building components, which are based on aggregates, cement and water or on aggregates and epoxy resin, is for radionuclide Ra-226 lower than 5 Bq/kg, for radionuclide Th-228 lower than 5 Bq/kg, and for radionuclide K-40 lower than 50 Bq/kg. Aggregates and mineral compounds of cement may be formed by materials from Paleozoic geological formations.
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