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Fireproof coating for steel structure

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

Inactive Publication Date: 2019-07-09
姜玉娟
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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

A fireproof coating for a steel structure is composed of the following components in parts by mass: 20 to 40 parts of dodecanol ester, 50 to 60 parts of silicon dioxide-aluminum oxide mixture, 5 to 10parts of titanium dioxide, 0.5 to 1 part of ammonium polyphosphate and 5 to 10 parts of tricresyl phosphate. The fireproof coating for the steel structure can tolerate long-time high-temperature baking, plays a role in fire prevention and heat insulation, prevents steel from being rapidly heated in a fire to reduce the strength, and prevents the steel structure from losing the supporting capacityto cause building collapse.

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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IPC IPC(8): C09D1/00C09D5/18
CPCC09D1/00C09D5/18
Inventor 姜玉娟
Owner 姜玉娟