Hydrocarbon-resistant thick fireproof coating

Abstract

The invention relates to a hydrocarbon-resistant thick fireproof coating in order to solve the technical problems that the fireproof coating can not well achieve a fireproof function and protect a steel structure and a concrete supporting part. The adopted technical scheme is as follows: the fireproof coating is prepared from the following raw materials in parts by weight: 20-25 parts of brucite, 10-12 parts of calcined kaolin, 29-30 parts of aluminum refractory cement, 10-16 parts of sodium silicate, 1-3 parts of polymerized aluminum phosphate, 1-2 parts of zinc oxide, 1-2 parts of bentonite, 10-20 parts of polymer powder, 20-23 parts of active powder, 8-10 parts of complex fiber, 9-10 parts of antimonous oxide, 10-15 parts of aluminum oxide, 12-15 parts of light calcium carbonate, 5-7 parts of mica powder, 15-20 parts of expanded vermiculite, 18-23 parts of expanded perlite, and 10-12 parts of hollow float beads. The hydrocarbon-resistant thick fireproof coating has the technical effects that the hydrocarbon-resistant thick fireproof coating can bear the instantly rising lasting high temperature of 1100 DEG C, has the characteristics of high bonding strength and compressive strength, strong adhesive force, good water tolerance, good solvent erosion resistance, thermocycling resistance, low heat conductivity coefficient and excellent fireproof performance and antiseptic performance, and can well achieve the fireproof function and achieve the purpose of protecting the steel structure and the concrete supporting part.

Description

technical field [0001] The invention belongs to the technical field of building materials, and relates to a fireproof coating, in particular to a hydrocarbon-resistant thick coating type fireproof coating. Background technique [0002] Most of the frames of modern high-rise and large buildings use steel structures or concrete structures. Although the load-bearing parts have high strength and large load capacity, when the temperatures of the steel structures and concrete structures far exceed their respective critical temperatures, the load-bearing parts will be damaged. The bearing capacity is quickly lost, causing the building to collapse. At present, my country's steel structures and concrete structures are protected against fire by ordinary steel structure fireproof coatings or concrete fireproof coatings, which cannot withstand the high temperature and sudden explosion fire caused by the presence and storage of hydrocarbons in buildings. , so that the load-bearing parts ...

AI Technical Summary

Problems solved by technology

[0003] The purpose of this invention is to solve the technical problem that the fireproof coating cannot well realize the fireproof function to protect the steel structure and concrete load-bearing parts. In order to solve this problem, we have designed a thick coating type fireproof coating resistant to hydrocarbons, which can withstand instant temperature rise Continuous high temperature up to 1100°C, can be sintered at a wide temperature to form a ceramic surface (body) during the fire process, the coating can be firmly combined with the protected substrate, has high stability, is not easy to burst and fall off, and has the characteristics of bonding It has the characteristics of high strength and compressive strength, strong adhesion, good water resistance, good solvent corrosion resistance, resistance to cold and heat cycles, low thermal conductivity, and excellent fire and corrosion resistance. It can well realize the fire protection function to protect steel structures and The purpose of concrete bearing parts