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Novel tunnel fireproof paint

A technology for fire-resistant coatings and tunnels, applied in fire-resistant coatings, alkali metal silicate coatings, coatings, etc., can solve problems such as easy burning and collapse, difficulties in evacuation and firefighting, and high crowd density, and achieve good fire resistance and heat insulation. Avoid bursting, light weight effect

Inactive Publication Date: 2014-08-20
ANHUI JIAMU RUBBLE & PLASTIC IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When a fire occurs in a tunnel, the temperature is generally above 1000°C. The masonry of the tunnel cannot withstand such a high temperature, and the serious part is easy to burn down. In addition, the tunnel environment is relatively airtight and the density of people is high. Once a fire occurs, evacuation and fighting are very difficult and easy. Cause heavy casualties and property losses, so it is very important to carry out fire prevention treatment for tunnels

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0011] A new type of tunnel fireproof coating, said fireproof coating is composed of the following components by weight: 26 parts of water glass, 13 parts of silicate, 17 parts of styrene-acrylic emulsion, 4 parts of aluminum silicate fiber, 35 parts of magnesium hydroxide, 6 parts of tin oxide, 3 parts of ammonium borate, 11 parts of sepiolite, 26 parts of light calcium carbonate, 13 parts of expanded perlite, 10.5 parts of melamine, 4 parts of pentaerythritol, 3.5 parts of vermiculite, 2 parts of ammonium dichromate, dispersed 1.5 parts.

[0012] Coating thickness: 10mm; fire resistance limit: 80min; surface dryness: 10h; water resistance: after 24h test, the coating will not crack, fall off, swell or change color.

Embodiment 2

[0014] A novel fireproof coating for tunnels, characterized in that the fireproof coating consists of the following components in parts by weight: 30 parts of water glass, 10 parts of silicate, 20 parts of styrene-acrylic emulsion, 5 parts of aluminum silicate fiber, hydroxide 40 parts of magnesium, 7 parts of tin oxide, 4 parts of ammonium borate, 12 parts of sepiolite, 27 parts of light calcium carbonate, 14 parts of expanded perlite, 11 parts of melamine, 5 parts of pentaerythritol, 4 parts of vermiculite, ammonium dichromate 3 parts, 2 parts of dispersant.

[0015] Coating thickness: 12mm; fire resistance limit: 75min; surface dryness: 12h; water resistance: after 24h test, the coating will not crack, fall off, swell or change color.

Embodiment 3

[0017] A new type of tunnel fireproof coating, said fireproof coating is composed of the following components by weight: 22 parts of water glass, 15 parts of silicate, 15 parts of styrene-acrylic emulsion, 3 parts of aluminum silicate fiber, 30 parts of magnesium hydroxide, 5 parts of tin oxide, 2 parts of ammonium borate, 10 parts of sepiolite, 25 parts of light calcium carbonate, 12 parts of expanded perlite, 10 parts of melamine, 3 parts of pentaerythritol, 3 parts of vermiculite, 1 part of ammonium dichromate, dispersed 0.8 parts of the agent.

[0018] Coating thickness: 13mm; fire resistance limit: 70min; surface dryness: 11h; water resistance: after 24h test, the coating will not crack, fall off, swell or change color.

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Abstract

The invention discloses a novel tunnel fireproof paint, belonging to the technical field of chemical engineering. The fireproof paint is prepared from the following components in parts by weight: 22-30 parts of water glass, 10-15 parts of silicate, 15-20 parts of styrene-acrylic emulsion, 3-5 parts of aluminum silicate fiber, 30-40 parts of magnesium hydroxide, 5-7 parts of tin oxide, 2-4 parts of ammonium borate, 10-12 parts of meerschaum, 25-27 parts of light calcium carbonate, 12-14 parts of expanded perlite, 10-11 parts of melamine, 3-5 parts of pentaerythritol, 3-4 parts of vermiculite, 1-3 parts of ammonium dichromate and 0.8-2 parts of dispersing agent. The tunnel fireproof paint has the advantages of light volume weight, favorable fire resistance, favorable heat insulation property, favorable water / acid / alkali resistance and the like, prevents the steel concrete in the tunnel from temperature drop due to quick temperature rise in a fire hazard, and prevents the concrete from bursting up. The tunnel fireproof paint is suitable for fireproof protection of highway tunnels and railway tunnels.

Description

technical field [0001] The invention belongs to the technical field of chemical industry, in particular to a novel tunnel fireproof coating. Background technique [0002] With the rapid development of the national economy, urban construction is accelerating, and the floating population is increasing rapidly, the construction and improvement of transportation is particularly important. The tunnel is favored by planners and builders for its shortest distance to achieve the goal, the least occupied area, the least damage to the natural environment and landscape, and low cost. However, the tunnel structure is generally made of stones and reinforced concrete. When the temperature rises to 600°C, the strength of the concrete will lose more than 50%, and the yield stress of the steel will drop to less than 1 / 3 of the yield force at room temperature. When a fire occurs in a tunnel, the temperature is generally above 1000°C. The masonry of the tunnel cannot withstand such a high tem...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D1/04C09D125/14C09D5/18C09D7/12
Inventor 叶春会王泽平
Owner ANHUI JIAMU RUBBLE & PLASTIC IND
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