AGENT BASED ON OIL, WAX OR FAT FOR CORROSION PROTECTION OF METAL STRUCTURE, ESPECIALLY PRESTRESSED STEEL REINFORCEMENT Russian patent published in 2019 - IPC C09D5/33 C09D5/08 C09D5/04 C09D5/22 C09D5/29 C09D191/00 G01N21/91 G01N31/22 E04C5/01 E04C5/08 

FIELD: metallurgy.

SUBSTANCE: invention relates to thixotropic agent for metal surface corrosion protection, to method of its application to metal structure coated with corrosion protection agent, to a device which provides detection of a corrosion indicator, and a method of checking a metal structure for corrosion. Corrosion preventing agent of metal surface, in particular surface of prestressed steel reinforcement, is thixotropic, contains an organic component which is oil, fat or wax, an indicator which reacts to corrosion of the metal surface, and additionally can contain a thermoplastic elastomer as a thixotropic additive. Corrosion protection agent is translucent. Indicator responds to corrosion of the metal surface by changing its absorption spectrum in the region of ultraviolet, visible or infrared light, in particular by changing color. Invention describes a metal structure coated with a corrosion protection device, a device on the metal structure and a method of checking the metal structure.

EFFECT: invention makes it possible to simplify inspection of prestressed steel reinforcement coated with anticorrosion composition for corrosion.

14 cl, 3 ex