Outdoor thick type fireproof coating for steel structure and its manufacturing method

A technology for fire retardant coatings and steel structures, which can be used in fire retardant coatings and other directions to solve the problems of powder removal, water resistance of the coating, and easy cracking.

Inactive Publication Date: 2012-05-30
高建业
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Most of the coatings are inorganic water-soluble coatings, and alkali metal silicates, phosphates, etc. are generally used as binders. Disadvantages such as powder, not suitable for coating and protection of exposed steel structures

Method used

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  • Outdoor thick type fireproof coating for steel structure and its manufacturing method
  • Outdoor thick type fireproof coating for steel structure and its manufacturing method

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Embodiment Construction

[0009] Below by embodiment the present invention will be further described:

[0010] Firstly, the expanded perlite and expanded vermiculite are screened and dried separately, the particle size is controlled at 1-3 mm, the white flake mica is pulverized by a ball mill to make it less than 20 mesh, and the zirconium-containing aluminum silicate fiber is used with a cotton shear Cut and disperse; then add 13.0kg of expanded vermiculite, 21.0kg of expanded perlite, 5.0kg of flaky mica, 3.0kg of zirconium-containing aluminum silicate fiber, 22.5kg of aluminate cement, and 1.2kg of water-poor borax into the mixer for mixing , so that it is evenly dispersed. After passing the sampling inspection, it will be packaged and packaged.

[0011] During specific construction, add appropriate amount of water to the powder and stir evenly, and the stirring time is not less than 5 minutes to make it into a thick fluid state without agglomeration. Thin consistency should be suitable for easy c...

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Abstract

An outdoor thick type fireproof coating for steel structure relates to a fireproof coating. Provided are an aluminate cement-based thick type fireproof coating for steel structure with an inorganic mineral thermal insulation combination material as main material, and a manufacturing method of the fireproof coating. The fireproof coating consists of a binder, a modifier, an aggregate and an enhancement material. The manufacturing method comprises sieving and drying the aggregate; pulverizing and sieving sheet-like mica; cutting off and dispersing the enhancement material; and well stirring the raw and auxiliary materials composed of the binder, the modifier, the aggregate and the enhancement material. The ratio of the modifier to each component of the aggregate and the enhancement material can be adjusted to promote full hydration of the aluminate cement binder and formation of a zirconia-containing aluminum silicate fiber interconnection net-like structure, change component viscosity and improve integrity of the coating. At the same time, a large amount of light fireproof components with different particle sizes are adopted to compact the coating and reduce the coating density. In addition, the coating has high adhesiveness, water resistance and flexibility, is free from cracking, falloff, chalking and wetting, and has good adhesion.

Description

technical field [0001] The invention relates to the field of fireproof paint for outdoor buildings, in particular to an outdoor thick steel structure fireproof paint and a preparation method. Background technique [0002] Steel structure is one of the main building structures, especially for some long-span buildings, bridges, high-rise and super high-rise buildings, it is very ideal to adopt steel structure. Although steel itself is non-combustible, it is not fire-resistant and easily conducts heat. It will lose its strength and deform when heated at high temperatures. The critical temperature of commonly used construction steel is generally 540°C, while the fire scene temperature of construction fires is mostly 800-1200°C. In a fire, the temperature of the steel structure reaches the critical temperature of the steel without taking protective measures within a few minutes, resulting in a sharp drop in its bearing capacity, deformation, and loss of bearing capacity, resulti...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/06C09D5/18
Inventor 高建业
Owner 高建业
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