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2 086 022

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Application

95110998/25, 1995-06-27

(22)

Actual filing date

1995-06-27

(45)

Published

1997-07-27

(72)

Inventor

Karlina O.K.Ovchinnikov A.V.Ozhovan M.I.Petrov G.A.Petrov A.G.Sobolev I.A.Barinov A.S.

(73)

Holder

Moskovskoe Nauchno-Proizvodstvennoe Ob"Edinenie

METHOD FOR DECONTAMINATING ASPHALTIC CONCRETE PAVEMENTS FROM RADIOACTIVE IMPURITIES Russian patent published in 1997 - IPC

Abstract RU 2086022 C1

FIELD: cleaning solid material surfaces from radionuclides. SUBSTANCE: method involves covering of contaminated surface with powered compound on glass fabric backing. Its composition is as follows, mass percent: magnesium powder - 50-80; potassium nitrate - 1-5; industrial oil - 1-2; aluminium-magnesium powder - the rest; plus 2-7 mass percent of glass-forming frit relative to mass of mixture with frit softening temperature of 500-600 C. Compound is then fired, section under treatment is heated to plastic state, and hot section is mechanically removed together with combustion products, waste is recovered and buried. EFFECT: improved economic efficiency and safety of process. 3 cl

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RU 2 086 022 C1

Authors

Karlina O.K.

Ovchinnikov A.V.

Ozhovan M.I.

Petrov G.A.

Petrov A.G.

Sobolev I.A.

Barinov A.S.

Dates

1997-07-27—Published

1995-06-27—Filed

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