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Steel structure fireproof coating

A technology of fire-resistant coatings and steel structures, applied in fire-resistant coatings, coatings, etc., can solve the problems of neglecting fire protection and heat insulation protection of steel structures, and achieve the effect of avoiding the collapse of buildings

Inactive Publication Date: 2017-06-09
周子童
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] As a form of high-rise building structure, steel structure is widely used in the construction industry due to its high strength, light weight, good extensibility, earthquake resistance and short construction period, but because the steel structure itself is not combustible, The problem of fire protection and heat insulation protection of steel structures was once neglected by people

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0010] The steel structure fireproof coating is composed of the following components by mass fraction: 30 parts of lauryl alcohol ester, 60 parts of silica-alumina mixture, 8 parts of titanium dioxide, 1 part of ammonium polyphosphate, and 6 parts of tricresyl phosphate.

[0011] The finished product is obtained after mixing the above-mentioned raw materials and stirring.

[0012] Comparative Experiment :

[0013] Impact resistance / MPa Adhesion / level (circle method) Expansion ratio Fire resistance (800°C)

Embodiment 1

[0014] Example 1 3.0 less than level 2 58 45min

[0015] Commercial samples 2.2 less than grade 4 86 33min

Embodiment 2

[0017] The fireproof coating for steel structures consists of the following components by mass fraction: 20 parts of lauryl alcohol, 50 parts of silica-alumina mixture, 10 parts of titanium dioxide, 0.5 parts of ammonium polyphosphate, and 5 parts of tricresyl phosphate.

[0018] The finished product is obtained after mixing the above-mentioned raw materials and stirring.

[0019] Comparative Experiment :

[0020] Impact resistance / MPa Adhesion / level (circle method) Expansion ratio Fire resistance (800°C)

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PUM

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Abstract

The invention discloses a steel structure fireproof coating which is composed of the following components in parts by mass: 20-40 parts of dodecanol, 50-60 parts of a silica-alumina mixture, 5-10 parts of titanium dioxide, 0.5-1 part of ammonium polyphosphate and 5-10 parts of tricresyl phosphate. The steel structure fireproof coating disclosed by the invention can tolerate long-term high-temperature baking and has fireproof and heat-insulation effects, the situation that the strength of steel is reduced as the temperature of the steel is rapidly increased can be prevented, , and the consequence that a building collapses since a steel structure has no support can be avoided.

Description

technical field [0001] The invention belongs to the technical field of fireproof coatings, in particular to a fireproof coating for steel structures. Background technique [0002] As a form of high-rise building structure, steel structure is widely used in the construction industry due to its high strength, light weight, good extensibility, earthquake resistance and short construction period, but because the steel structure itself is not combustible, The problem of fire and heat insulation protection of steel structures was once neglected by people. According to relevant domestic and foreign reports and the tests and statistics of relevant institutions, the fire resistance of steel structure buildings is worse than that of masonry structures and reinforced concrete structures. The mechanical strength of steel decreases with the increase of temperature. At about 5000 °C, its strength drops to 40% to 50%, and the mechanical properties of steel, such as yield point, compressiv...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D1/00C09D5/18C09D7/12
Inventor 周子童
Owner 周子童