CN109897458A - A kind of novel tunnel fireproof coating - Google Patents
A kind of novel tunnel fireproof coating Download PDFInfo
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- CN109897458A CN109897458A CN201711311811.3A CN201711311811A CN109897458A CN 109897458 A CN109897458 A CN 109897458A CN 201711311811 A CN201711311811 A CN 201711311811A CN 109897458 A CN109897458 A CN 109897458A
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Abstract
The present invention discloses a kind of novel tunnel fireproof coating, belongs to chemical technology field.Fireproof coating of the present invention is grouped as by the group of following parts by weight: 22-38 parts of phosphate, 10-18 parts of gypsum, 15-24 parts of neoprene latex, glass fibre 3-8 parts water-soluble, 30-46 parts of magnesium hydroxide, 5-8 parts of aluminium oxide, 2-6 parts of ammonium borate, 10-14 parts of sepiolite, 25-29 parts of flake asbestos, 12-16 parts of expanded perlite, 10-11 parts of polyvinyl chloride, 3-8 parts of pentaerythrite, 3-6 parts of vermiculite, 1-4 parts of ammonium dichromate, 0.8-4 parts of dispersing agent.Fire-proof coating for tunnels of the present invention has many advantages, such as that bulk density is light, fire insulation is good, water-acid resistance, prevents steel-concrete in tunnel to be brought rapidly up in a fire and reduce temperature, concrete is avoided to burst.Suitable for vcehicular tunnel, the flameproof protection of railway tunnel.
Description
Technical field
The invention belongs to chemical technology field, specifically a kind of novel tunnel fireproof coating.
Background technique
With the high speed development of national economy, urban construction is accelerated, and floating population increases sharply, and transport development and improves aobvious
It obtains particularly important.And tunnel with its realize target range is most short, occupied area is minimum, to natural environment and landscape destruction degree most
The favor of the characteristics of small, low cost receives planning construction person.But tunnel structure is usually to be built by stone and armored concrete
It builds, when temperature rises to 600 DEG C, concrete strength is lost up to 50% or more, and the yield stress of steel drops to yield force under room temperature
1/3 or less.And when tunnel generation fire, generally at 1000 DEG C or more, tunnel masonry is difficult to bear such high temperature, serious portion temperature
Partial volume is easily burnt down, and along with tunnel environment is relatively closed, density of stream of people is big, once fire occurs, is evacuated and is saved and is extremely difficult,
It is be easy to cause great casualties and property loss, therefore carry out fire prevention processing to tunnel to seem particularly significant.
Summary of the invention
The purpose of the present invention is to provide a kind of novel tunnel fireproof coating, the purpose of the present invention can pass through following technology
Scheme is realized:
A kind of novel tunnel fireproof coating, which is characterized in that the fireproof coating is grouped as by the group of following parts by weight: phosphate
22-38 parts, 10-18 parts of gypsum, 15-24 parts of neoprene latex, glass fibre 3-8 parts water-soluble, 30-46 parts of magnesium hydroxide, oxygen
Change aluminium 5-8 parts, 2-6 parts of ammonium borate, 10-14 parts of sepiolite, 25-29 parts of flake asbestos, 12-16 parts of expanded perlite, polyvinyl chloride
10-11 parts, 3-8 parts of pentaerythrite, 3-6 parts of vermiculite, 1-4 parts of ammonium dichromate, 0.8-4 parts of dispersing agent.
Fireproof coating of the present invention is grouped as by the group of following parts by weight: 26 parts of phosphate, 14 parts of gypsum, neoprene
18 parts of lotion, 6 parts of water-soluble glass fibre, 38 parts of magnesium hydroxide, 6 parts of aluminium oxide, 4 parts of ammonium borate, 11 parts of sepiolite, flake asbestos 26
Part, 14 parts of expanded perlite, 10.8 parts of polyvinyl chloride, 6 parts of pentaerythrite, 3.8 parts of vermiculite, 4 parts of ammonium dichromate, dispersing agent 1.8
Part.
Dispersing agent of the present invention is polyethylene wax or polyethylene glycol.
Beneficial effects of the present invention: fire-proof coating for tunnels of the present invention is with bulk density is light, fire insulation is good, water-acid resistance
The advantages that, it prevents steel-concrete in tunnel to be brought rapidly up in a fire and reduce temperature, concrete is avoided to burst.Suitable for public affairs
The flameproof protection in road tunnel, railway tunnel.
Specific embodiment
Present invention is further described in detail combined with specific embodiments below.
A kind of novel tunnel fireproof coating of embodiment 1, the fireproof coating are grouped as by the group of following parts by weight: phosphoric acid
26 parts of salt, 14 parts of silicate, 18 parts of neoprene latex, 6 parts of water-soluble glass fibre, 38 parts of magnesium hydroxide, 6 parts of aluminium oxide, boron
4 parts of sour ammonium, 11 parts of sepiolite, 26 parts of flake asbestos, 14 parts of expanded perlite, 10.8 parts of polyvinyl chloride, 6 parts of pentaerythrite, vermiculite
3.5 parts, 4 parts of ammonium dichromate, 1.8 parts of dispersing agent.
Coating layer thickness: 10mm；Fire endurance: 80min；Surface drying: 10h；Water resistance: after testing for 24 hours, coating do not crack,
It falls off, swell and changes colour.
A kind of novel tunnel fireproof coating of embodiment 2, which is characterized in that the fireproof coating by following parts by weight component
Composition: 38 parts of phosphate, 10 parts of gypsum, 24 parts of neoprene latex, 8 parts of water-soluble glass fibre, 46 parts of magnesium hydroxide, aluminium oxide
8 parts, 6 parts of ammonium borate, 14 parts of sepiolite, 29 parts of flake asbestos, 16 parts of expanded perlite, 11 parts of polyvinyl chloride, 8 parts of pentaerythrite,
6 parts of vermiculite, 4 parts of ammonium dichromate, 4 parts of dispersing agent.
Coating layer thickness: 12mm；Fire endurance: 75min；Surface drying: 12h；Water resistance: after testing for 24 hours, coating do not crack,
It falls off, swell and changes colour.
A kind of novel tunnel fireproof coating of embodiment 3, the fireproof coating are grouped as by the group of following parts by weight: phosphate
24 parts, 18 parts of gypsum, 18 parts of neoprene latex, 4 parts of water-soluble glass fibre, 38 parts of magnesium hydroxide, 8 parts of aluminium oxide, ammonium borate 4
Part, 10 parts of sepiolite, 29 parts of flake asbestos, 14 parts of expanded perlite, 10 parts of polyvinyl chloride, 4 parts of pentaerythrite, 4 parts of vermiculite, weight chromium
1 part of sour ammonium, 0.8 part of dispersing agent.
Coating layer thickness: 13mm；Fire endurance: 70min；Surface drying: 11h；Water resistance: after testing for 24 hours, coating do not crack,
It falls off, swell and changes colour.
It should be understood that being somebody's turn to do, examples are only for illustrating the present invention and not for limiting the scope of the present invention.Furthermore, it is to be understood that
After reading the content taught by the present invention, those skilled in the art can make various modifications or changes to the present invention, these
Equivalent form is equally fallen within the scope of the appended claims within the limits of the protection.
Claims (3)
1. a kind of novel tunnel fireproof coating, which is characterized in that the fireproof coating is grouped as by the group of following parts by weight: phosphoric acid
22-38 parts of salt, 10-18 parts of gypsum, 15-24 parts of neoprene latex, glass fibre 3-8 parts water-soluble, 30-46 parts of magnesium hydroxide,
5-8 parts of aluminium oxide, 2-6 parts of ammonium borate, 10-14 parts of sepiolite, 25-29 parts of flake asbestos, 12-16 parts of expanded perlite, polychlorostyrene second
10-11 parts of alkene, 3-8 parts of pentaerythrite, 3-6 parts of vermiculite, 1-4 parts of ammonium dichromate, 0.8-4 parts of dispersing agent.
2. a kind of novel tunnel fireproof coating according to claim 1, which is characterized in that the fireproof coating is by following heavy
The group of amount part is grouped as: 26 parts of phosphate, 14 parts of gypsum, 18 parts of neoprene latex, 6 parts of water-soluble glass fibre, magnesium hydroxide
38 parts, 6 parts of aluminium oxide, 4 parts of ammonium borate, 11 parts of sepiolite, 26 parts of flake asbestos, 14 parts of expanded perlite, 10.8 parts of polyvinyl chloride,
6 parts of pentaerythrite, 3.8 parts of vermiculite, 4 parts of ammonium dichromate, 1.8 parts of dispersing agent.
3. a kind of novel tunnel fireproof coating according to claim 1 or 2, which is characterized in that the dispersing agent is poly- second
Alkene wax or polyethylene glycol.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711311811.3A CN109897458A (en) | 2017-12-11 | 2017-12-11 | A kind of novel tunnel fireproof coating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711311811.3A CN109897458A (en) | 2017-12-11 | 2017-12-11 | A kind of novel tunnel fireproof coating |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109897458A true CN109897458A (en) | 2019-06-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711311811.3A Pending CN109897458A (en) | 2017-12-11 | 2017-12-11 | A kind of novel tunnel fireproof coating |
Country Status (1)
| Country | Link |
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| CN (1) | CN109897458A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111116166A (en) * | 2019-11-29 | 2020-05-08 | 浙江大学 | Concrete surface heat-insulating anticorrosive coating and preparation method thereof |
-
2017
- 2017-12-11 CN CN201711311811.3A patent/CN109897458A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111116166A (en) * | 2019-11-29 | 2020-05-08 | 浙江大学 | Concrete surface heat-insulating anticorrosive coating and preparation method thereof |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20190618 |