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Tunnel fireproof paint

A technology for fire-resistant coatings and tunnels, applied in fire-resistant coatings and other directions, can solve the problems of product quality impact, reduce construction efficiency, unreasonable composition, etc., and achieve the effect of short spraying operation cycle, accelerated drying speed, and overall comprehensive performance improvement.

Inactive Publication Date: 2010-06-23
江西三星气龙新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above-mentioned prior art products have good effects on fire resistance and bond strength, but there are still many deficiencies, such as unreasonable composition, heating and mixing are required at the construction site, and two kinds of materials need to be added respectively to carry out the process during on-site construction. Mixing, different materials need to be sprayed on each layer during on-site construction, etc. These have brought a lot of inconvenience to the construction operation, reduced the construction efficiency, and affected the final product quality in the relatively harsh construction site.
There are also excessive use of high-alumina cement or organic flame-retardant materials, which greatly increases the final cost of the product

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] 30 parts of ordinary Portland cement labeled 32.5, 12 parts of wollastonite powder, 19 parts of pottery clay, 12 parts of sepiolite, 15 parts of expanded perlite, 10 parts of expanded vermiculite, and 0.1 part of calcium formate in order by weight. , 1.4 parts of redispersible latex powder, 0.1 part of polypropylene fiber, 0.3 part of methyl cellulose ether, and 0.1 part of starch ether were added to the forced mixer and mixed for 8 minutes, and then discharged, the prepared dry powder mixture, Take a certain amount and add 75% fresh water in the weight ratio of the mixture to the forced mixer and mix for 10 minutes to form a thick slurry tunnel fireproof coating. For relevant testing requirements and results, see Attached Table 1.

Embodiment 2

[0032] 27 parts of ordinary Portland cement labeled 42.5, 11 parts of wollastonite powder, 20 parts of pottery clay, 11 parts of sepiolite, 17 parts of expanded perlite, 12 parts of expanded vermiculite, and 0.1 part of calcium formate were sequentially prepared in parts by weight. , 1.6 parts of redispersible latex powder, 0.1 part of polypropylene fiber, 0.1 part of methyl cellulose ether, and 0.1 part of starch ether were added to the forced mixer and mixed for 8 minutes, and then discharged, the prepared dry powder mixture, Take a certain amount and add 70% fresh water in the weight ratio of the mixture to a forced mixer and mix for 10 minutes to form a thick paste tunnel fireproof coating. For relevant testing requirements and results, see Attached Table 1.

Embodiment 3

[0034] 33 parts of ordinary Portland cement labeled 32.5, 11 parts of wollastonite powder, 16 parts of pottery clay, 11 parts of sepiolite, 16 parts of expanded perlite, 11 parts of expanded vermiculite, and 0.1 part of calcium formate in parts by weight , 1.7 parts of redispersible latex powder, 0.1 part of polypropylene fiber, 0.06 part of methyl cellulose ether, and 0.005 part of starch ether were added to the forced mixer and mixed for 8 minutes, and then discharged, the prepared dry powder mixture, Take a certain amount and add 80% fresh water in the weight ratio of the mixture to a forced mixer and mix for 10 minutes to form a thick paste tunnel fireproof coating. For relevant testing requirements and results, see Attached Table 1.

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Abstract

The invention relates to fireproof paint, in particular to tunnel fireproof paint, which is prepared from the following ingredients: a major bonding agent (ordinary Portland cement), inorganic heat insulation filling materials (expanded perlite, expanded vermiculite, meerschaum, kaoline and wollastonite powder) and addition agents (calcium formate, starch ether, redispersible latex powder, methyl cellulose ether and polypropylene fiber). Through the unique addition agent combination and the prescription mixture ratio, the tunnel fireproof paint has the advantages that the construction performance is obviously improved, at the same time, the integral overall performance of the tunnel fireproof paint is greatly improved, and the tunnel fireproof paint has the characteristics of stable fireproof performance, high adhesion intensity and stable physicochemical performance. Simultaneously, the product per se generates no toxic substance in the construction and burning processes, has the effects of environment protection and high practicability, and can be widely used for the fireproof protection of buildings such as highways, railways, subway tunnels and the like.

Description

technical field [0001] The invention relates to a fireproof paint, in particular to a tunnel fireproof paint. Background technique [0002] With the rapid development of urbanization in our country, the tunnel has become a traffic building that realizes short distance, saves land, and does not damage the natural environment. Therefore, in today's land value is increasing, this kind of building is ideal and Common modern traffic buildings. As of the end of 2007, the total mileage of tunnels in our country was 2555.5 kilometers, an increase of 38.75% compared with the previous year. Such a rapid growth trend has also brought a greater test to our fire protection. A tunnel is a relatively airtight building with high mobility of people. Once a fire breaks out, it is difficult to evacuate people and fight fires. The tunnel structure is usually a reinforced concrete structure, and reinforced concrete does not have high temperature resistance. It will gradually lose its strength,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D5/18C04B35/66
Inventor 周群肖攀峰
Owner 江西三星气龙新材料有限公司
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