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Single system and composite fire retardant coating for tunnel

A fire-resistant coating and composite technology, applied in the direction of fire-resistant coatings, cement coatings, etc., can solve the problems of reducing the bond strength of fire-resistant coatings, affecting the water consumption of fire-resistant coatings, flexibility and fire-resistant performance, etc., to avoid self-strength reduction, High cohesiveness and the effect of improving the fire resistance limit

Inactive Publication Date: 2005-10-26
SICHUAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, with a two-component system, mixing in harsh conditions on the construction site often leads to many mistakes
In addition, due to the use of a two-component system, the moisture in the liquid material component will directly affect the water consumption of the fire retardant coating, which will have a great impact on the strength, bonding strength, flexibility and fire resistance of the finished fire retardant coating
At the same time, because these two kinds of coatings are packaged in separate packages, it not only increases the cost of production, packaging and transportation, but also adds a certain process to the construction.
[0006] In addition, the foaming process of tunnel fireproof coatings in the above reports all occurs at high temperature, which belongs to the high temperature foaming process
At the same time, they will generate acid gas during the foaming process, which will chemically react with the alkaline substances in the fireproof coating such as Portland cement binder, which will drastically reduce the bonding of the fireproof coating at high temperature. strength

Method used

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  • Single system and composite fire retardant coating for tunnel

Examples

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Effect test

example 1

[0022] Redispersible latex powder Vinnapas RE 526 Z 12 parts, high alumina cement 25 parts, expanded perlite 10 parts, expanded vermiculite 20 parts, sepiolite 4 parts, kaolin 8 parts, fibril 15 parts, talc 18 parts, glass 8 parts of floating beads, 6 parts of aluminum hydroxide, 9 parts of magnesium hydroxide, 3 parts of mica powder, 6 parts of bentonite, 0.1 part of superplasticizer, and 0.01 part of air-entraining agent. After fully mixing the dry ingredients, add 125 parts of water and mix well. The testing methods, items and testing results of the tunnel fireproof coating are shown in Table 1.

example 2

[0024] Redispersible latex powder Vinnapas RE 523 Z 14 parts, high alumina cement 23 parts, expanded perlite 6 parts, expanded vermiculite 25 parts, sepiolite 5 parts, kaolin 4 parts, fibril 8 parts, talc 5 parts, glass 6 parts of floating beads, 14 parts of aluminum hydroxide, 9 parts of magnesium hydroxide, 3 parts of mica powder, 4 parts of bentonite, 0.1 part of superplasticizer, and 0.02 part of air-entraining agent. After fully mixing the dry ingredients, add 120 parts of water and mix well. The testing methods, items and testing results of the tunnel fireproof coating are shown in Table 1.

example 3

[0026] Redispersible latex powder Vinnapas LL 5031 16 parts, high alumina cement 21 parts, expanded perlite 8 parts, expanded vermiculite 18 parts, sepiolite 5 parts, kaolin 3 parts, fibril 5 parts, talc 8 parts, glass drift 3 parts of beads, 6 parts of aluminum hydroxide, 12 parts of magnesium hydroxide, 3 parts of mica powder, 8 parts of bentonite, 0.1 part of superplasticizer, and 0.01 part of air-entraining agent. After fully mixing the dry ingredients, add 115 parts of water and mix well. The testing methods, items and testing results of the tunnel fireproof coating are shown in Table 1.

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Abstract

The present invention relates to a production method of single system compounded tunnel fire-resisting paint. Its composition includes (by weight portion) 20.0-50.0 portions of adhesive formed from redispersible latex powder and aluminous cement, 55.0-85.0 portions of inorganic heat-insulating filler and 0.1-5.0 portions of adjuvant. Said fire-resisting paint not only has good fire-resisting property, but also has good water-proof and sound-insulating properties.

Description

technical field [0001] The invention belongs to the technical field of inorganic non-metallic materials and fire protection, and relates to a method for manufacturing a single-system compound fireproof coating for tunnels. Background technique [0002] During the construction of transportation channels, tunnels are favored by planners and builders for their advantages of convenience and low cost. However, in recent decades, due to the increasing traffic flow and improving road conditions, as well as the complexity of transporting items, the risk of fire in traffic tunnels has increased. And because the tunnel structure is complex and the environment is airtight, once a fire breaks out in a limited space, it is quite difficult to put out the fire, and the fire often lasts for a long time, which can easily cause casualties and heavy property losses. [0003] The hazards caused by many traffic accidents at home and abroad have aroused great attention to the safety of tunnel fi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D1/06
Inventor 尹光福姚亚东程小伟郭向利
Owner SICHUAN UNIV
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