METHOD OF ANTICORROSION PROTECTION OF METAL STRUCTURES OF BRIDGES

FIELD: anticorrosion protection of metals structures of bridges whose assembly requires more than 3 years. SUBSTANCE: proposed method consists in application of paint and varnish coats selected depending of their service life. Method includes application of primer, intermediate and cover layers made...

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Bibliographische Detailangaben
Hauptverfasser:	RASPOROV K.O, GLAZMAN F.B, MAKAROV V.N, LIKVERMAN A.I, MONOV B.N, VELIKOGLO T.G, RASPOROV O.N, TEPLOV A.A
Format:	Patent
Sprache:	eng
Schlagworte:	ADHESIVES CHEMICAL PAINT OR INK REMOVERS CHEMISTRY COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS CORRECTING FLUIDS DYES FILLING PASTES INKS METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS PAINTS PASTES OR SOLIDS FOR COLOURING OR PRINTING POLISHES USE OF MATERIALS THEREFOR WOODSTAINS
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Beschreibung
Zusammenfassung:	FIELD: anticorrosion protection of metals structures of bridges whose assembly requires more than 3 years. SUBSTANCE: proposed method consists in application of paint and varnish coats selected depending of their service life. Method includes application of primer, intermediate and cover layers made on base of materials of single-component polyurethanes+ADs- in applying layers, its service life is taken into account+ADs- each subsequent layer is applied before expiration of service life of previous one+ADs- total service life of layers shall exceed term of mounting bridge framework. Service life of each subsequent layer of paint and varnish coat shall be equal to or shall exceed service life of each previous layer. Thickness of paint and varnish coat shall be between 220 and 250 mcm. It is good practice to use single-component zinc-containing polyurethane STEELPAINT-PU-ZINK material for forming primer layer and single-component polyurethane STEELPAINT-PU-MICA UV material of Steelpaint firm (Germany) for forming cover layer. EFFECT: enhanced efficiency. 3 cl, 1 tbl