METHOD OF PROTECTION OF BUILDING CONCRETE STRUCTURES EXPOSED TO UREA Russian patent published in 2000 - IPC

Abstract RU 2145949 C1

FIELD: production, processing and storage of urine. SUBSTANCE: method comprises preliminary impregnation of damaged surface with carbamidoformaldehyde resin at carbamide to formaldehyde ratio of 1:(2.5-2.7) and content of free formaldehyde of 20% based on total amount of formaldehyde followed by application of paint coating. EFFECT: greater adhesion of coating to concrete surface, longer service life of concrete, lower consumption of material, and lower formaldehyde concentration in working zone air. 4 ex, 1 tbl

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RU 2 145 949 C1

Authors

Jankovskij Nikolaj Andreevich

Stepanov Valerij Andreevich

Ostrovskaja Alina Ivanovna

Kravchenko Boris Vasil'Evich

Shvets Valerij Andreevich

Pol'Okha Alina Mikhajlovna

Lozovaja Valentina Ivanovna

Kozlova Ol'Ga Jur'Evna

Litovchenko Nina Il'Inichna

Dates

2000-02-27Published

1997-05-12Filed