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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Authors
Dates
2000-02-27—Published
1997-05-12—Filed