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Geopolymer tunnel fireproof coating and preparation method thereof

A technology of geopolymers and fireproof coatings, applied in the production of fireproof coatings, cement, etc., can solve the problems of inconvenient and uneconomical use of two-components, achieve low cost of material sources, excellent freeze-thaw resistance, and bond strength high effect

Active Publication Date: 2015-02-25
CHANGAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, usually geopolymers need one or more reactions of water glass solution, metal hydroxide alkali solution and metakaolin, fly ash, slag and other aluminosilicates. In engineering applications, two components are used together inconvenient and not economical

Method used

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  • Geopolymer tunnel fireproof coating and preparation method thereof

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Comparison scheme
Effect test

Embodiment 1

[0044] The present embodiment provides the geopolymer tunnel fireproof coating, which consists of the following raw materials in units of weight: 43 parts of geopolymer, 12 parts of expanded perlite, 24 parts of expanded vermiculite, 14 parts of brucite fiber, sepiolite 4 parts, 3 parts of hydroxymethyl cellulose, 0.03 part of fatty alcohol sulfonate air-entraining agent;

[0045] The geopolymer, in terms of weight unit, consists of the following raw materials: 17 parts of silica fume, 10 parts of kaolin, 3 parts of calcium-based bentonite, 5 parts of calcium oxide, 10 parts of sodium carbonate, 2 parts of sodium chloride, sodium sulfate 3 parts, 50 parts of low calcium fly ash.

[0046] The various performance parameters of the geopolymer tunnel fireproof coating prepared in this embodiment are shown in Table 1.

Embodiment 2

[0048] The present embodiment provides the geopolymer tunnel fireproof coating, which is composed of the following raw materials in parts by weight: 45 parts of geopolymer, 10 parts of expanded perlite, 22 parts of expanded vermiculite, 13 parts of brucite fiber, sea foam 5 parts of stone, 5 parts of hydroxymethyl cellulose, 0.05 part of fatty alcohol sulfonate air-entraining agent;

[0049]The geopolymer, in terms of weight unit, consists of the following raw materials: 17 parts of silica fume, 10 parts of kaolin, 3 parts of calcium-based bentonite, 5 parts of calcium oxide, 10 parts of sodium carbonate, 2 parts of sodium chloride, sodium sulfate 3 parts, 50 parts of low calcium fly ash.

[0050] The various performance parameters of the geopolymer tunnel fireproof coating prepared in this embodiment are shown in Table 1.

Embodiment 3

[0052] The present embodiment provides the geopolymer tunnel fireproof coating, which consists of the following raw materials in units of weight: 35 parts of geopolymer, 12 parts of expanded perlite, 28 parts of expanded vermiculite, 15 parts of brucite fiber, sepiolite 5 parts, 5 parts of hydroxymethyl cellulose, 0.05 part of fatty alcohol sulfonate air-entraining agent;

[0053] The geopolymer, in terms of weight unit, consists of the following raw materials: 17 parts of silica fume, 10 parts of kaolin, 3 parts of calcium-based bentonite, 5 parts of calcium oxide, 10 parts of sodium carbonate, 2 parts of sodium chloride, sodium sulfate 3 parts, 50 parts of low calcium fly ash.

[0054] The various performance parameters of the geopolymer tunnel fireproof coating prepared in this embodiment are shown in Table 1.

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Abstract

The invention provides a geopolymer tunnel fireproof coating. The geopolymer tunnel fireproof coating comprises the following raw materials in parts by weight: 35-45 parts of geopolymer, 10-15 parts of expanded perlite, 17-28 parts of expanded vermiculite, 13-15 parts of brucite fiber, 3-5 parts of sepiolite, 3-5 parts of hydroxymethyl cellulose and 0.03-0.05 part of fatty alcohol sulfonate air-entraining agent, wherein the geopolymer comprises the following raw materials in parts by weight: 17 parts of silica fume, 10 parts of kaolin clay, 3 parts of calcium base bentonite, 5 parts of calcium oxide, 10 parts of sodium carbonate, 2 parts of sodium chloride, 3 parts of sodium sulfate and 50 parts of low-calcium fly ash. A geopolymer binder used by the geopolymer tunnel fireproof coating provided by the invention has the characteristics of low cost of material sources, high binding strength and excellent fire resistance and durability; and the tunnel fireproof coating disclosed by the invention has the properties of long fire-resistant limit time, high binding strength and excellent resistance to freezing and thawing, and is the tunnel fireproof coating with good performance.

Description

technical field [0001] The invention belongs to the field of fireproof coatings, and relates to a tunnel fireproof coating, in particular to a geological polymer tunnel fireproof coating and a preparation method thereof. Background technique [0002] Tunnel fireproof coating is a special fireproof coating specially designed for tunnel walls and vaults to avoid burning in fire. At present, there are many manufacturers of fireproof coatings for tunnels in my country. Basically, high alumina cement is used as a binder, and lightweight aggregates such as expanded perlite and expanded vermiculite are used to form tunnel fireproof coatings. The typical problem is that this type of tunnel The bonding strength of the fireproof coating is low, the coating is thin and the fire rating is low, the coating is thick and easy to fall off, and the decoration of the fireproof coating is poor. [0003] Geopolymers have the following unique physical and chemical properties: [0004] (1) The s...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D5/18C04B28/00C04B111/28
CPCY02P40/10
Inventor 艾涛赵鹏景宏君王俊义王振军阎鑫苏兴华常利杨广营张海师
Owner CHANGAN UNIV
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