Fireproof treatment process for steel structure

Abstract

The invention discloses a fireproof treatment process for a steel structure, and belongs to the field of steel structures. According to the fireproof treatment process, fireproof particles are added into a fireproof coating to prevent the fireproof coating and anticorrosive paint from falling off in a large area, and meanwhile, the fireproof performance is effectively improved, on one hand, the fireproof particles cover an anticorrosive primer to prevent the primer from being corroded by external moisture and oxygen, and therefore rapid failure of the anti-corrosion primer is effectively prevented; and on the other hand, the fireproof coating is separated from the anti-corrosion primer through the fireproof particles, so that the anti-corrosion primer is not dragged when the fireproof coating prevents combustion or falling off, the fireproof particles effectively prevent heat from being transmitted to the steel structure, the fireproof particles delay combustion through water and carbon dioxide generated by thermal decomposition of carbonic acid, the carbon dioxide can play a certain fire extinguishing role and effectively prevent fire from expanding, the water generated by decomposition is absorbed through super absorbent resin balls, combustion can be prevented, heat is taken away when water evaporates, and the temperature can be effectively reduced.

Description

technical field [0001] The invention relates to the field of steel structures, and more specifically relates to a fireproof treatment process for steel structures. Background technique [0002] Steel structure is a structure composed of steel materials, which is one of the main types of building structures. The structure is mainly composed of steel beams, steel columns, steel trusses and other components made of section steel and steel plates, and adopts rust removal and antirust processes such as silanization, pure manganese phosphating, washing and drying, and galvanizing. The components or components are usually connected by welds, bolts or rivets. Because of its light weight and easy construction, it is widely used in large factories, stadiums, super high-rises and other fields. Steel structures are prone to corrosion. Generally, steel structures need to be derusted, galvanized or painted, and they need to be maintained regularly. [0003] Steel structures are heat-re...

AI Technical Summary

Problems solved by technology

[0004] At present, most of the fireproof treatment methods for steel structures are to paste fireproof materials on both sides of the steel structure, but it is only suitable for indoor steel structures. For steel structures exposed to the external environment, fireproof coatings are generally applied on the surface, and because fireproof coatings are the same as anti-corrosion The paint is brushed on the surface of the steel structure, so the paint will fall off like the paint, especially after a long period of wind and rain and the presence of air bubbles, which will lead to fire failure and affect the performance of the steel structure

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