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High-tenacity waterproof and fireproof board specially used for tunnel and preparation method thereof

A fire-resistant board and high-toughness technology, which is applied in tunnels, tunnel linings, and fire prevention. It can solve problems such as unstable performance, poor toughness, and poor water resistance of the board, and achieve improved fire resistance limit and toughness, good fire resistance, and water resistance. Enhanced effect

Inactive Publication Date: 2011-07-06
湖南立磐威特消防新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The reinforced concrete components used as the main building of the tunnel are fireproof materials. At present, there are few fireproof materials used in the construction market. The boards have poor toughness and water resistance, and the construction is difficult and the performance is unstable.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] A special high-toughness waterproof and fireproof board for tunnels is made of 48.7% magnesium oxide, 2.4% expanded perlite, 1.5% sawdust, 2.9% talcum powder, 43.9% magnesium chloride, 0.12% medium-alkali glass fiber, and polybutadiene epoxy resin. 0.24% (molecular weight (M) is 2000, functionality (f) is 2.3, epoxy value is 0.36, appearance is yellow viscous liquid), aluminum dihydrogen phosphate water repellent 0.24% weighs ingredients, and the products are obtained according to the existing countries Standard test, RABT temperature rise curve, when the thickness is 15-18mm, the fire resistance limit is 200-230 minutes, and the initial crack deflection value on the surface of the plate is 10.2%.

Embodiment 2

[0034] A special high-toughness waterproof and fireproof board for tunnels is made of 36% magnesium oxide, 5.0% expanded perlite, 6.4% sawdust, 6.5% talcum powder, 37.2% magnesium chloride, 3.89% medium-alkali glass fiber, and polybutadiene epoxy resin. 1.07%, aluminum dihydrogen phosphate water repellent 0.74% and weigh the ingredients, the obtained product is tested according to the existing national standards, the RABT temperature rise curve, the fire resistance limit is 200-230 minutes when the thickness is 15-18mm; the initial crack deflection value of the plate surface is 11.6%.

Embodiment 3

[0036] A special high-toughness waterproof and fireproof board for tunnels is made of 35.8% magnesium oxide, 7.4% expanded perlite, 7.5% sawdust, 9.5% talcum powder, 36.3% magnesium chloride, 2.0% medium-alkali glass fiber, and polybutadiene epoxy resin. 0.98%, aluminum dihydrogen phosphate water repellent 0.52% and weigh the ingredients, the obtained product is tested according to the existing national standards, the RABT temperature rise curve, the fire resistance limit is 200-230 minutes when the thickness is 15-18mm, and the initial crack deflection on the surface of the plate is 11.2%.

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Abstract

The invention relates to a high-tenacity waterproof and fireproof board specially used for a tunnel and a preparation method thereof, wherein the high-tenacity waterproof and fireproof board is made by pressing one or two kinds of medium-alkali glass fiber cloth and non-woven fabric which are taken as basal materials and waterproof and fireproof components; and the waterproof and fireproof components comprise the following components in percent by weight: 48.7-29.8 percent of magnesium oxide, 2.4-7.4 percent of expanded perlite, 4.4-19.9 percent of filling aggregate, 43.9-37.2 percent of magnesium chloride, 0.12-3.89 percent of medium-alkali glass fiber yarn, 0.24-1.07 percent of polybutadiene epoxy resin and 0.24-0.74 percent of aluminum dihydrogen phosphate water-repellent agent. By adopting the effective matching of the components, the invention can greatly improve the fire resistance endurance and the tenacity of boards to better apply to the tunnel.

Description

technical field [0001] The invention belongs to the technical field of environment-friendly building materials, and in particular relates to a building material of a special high-toughness waterproof and fireproof board for tunnels. Background technique [0002] In recent years, with the development of my country's economic construction, the country has increased the construction of transportation infrastructure such as roads, railways, and subways. Tunnels not only undertake the task of transportation, but also function as channels for optical cables, cables, and even oil and water pipelines. The reinforced concrete components used as the main building of the tunnel are fireproof materials. At present, there are few plates in the fireproof materials used in the construction market, and the plates have poor toughness and water resistance, which make construction difficult and unstable performance. Contents of the invention [0003] The purpose of the present invention is ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21D11/38E21F5/00C04B28/32
CPCC04B2111/28C04B28/32C04B2111/27C04B30/02C04B2111/00724C04B2111/00017C04B2111/00612Y02W30/91C04B14/42C04B20/0048C04B40/0071C04B14/042C04B14/185C04B18/26C04B22/16C04B24/281C04B18/24C04B18/248C04B2103/65
Inventor 吴道新喻杰杨正辉严爱国樊华
Owner 湖南立磐威特消防新材料科技有限公司
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