Tunnel fire retardant coating and preparation process and construction process thereof

A technology for fire-resistant coatings and tunnels, applied in sustainable waste treatment, solid waste management, climate sustainability, etc., can solve the problem that fire resistance, strength, water resistance, acid resistance, and heat and humidity resistance cannot fully meet the fire protection requirements of tunnels, etc. problems, to achieve the effects of easy storage, improved crack resistance, and strong adhesion

Inactive Publication Date: 2010-11-10
成都威邦科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the existing technical products cannot fully meet the fire protection requirements of tunnels in terms of fire resistance, strength, water resistance, acid resistance, and heat and humidity resistance.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] 0.3% 582 resin, 29% Portland cement, 12% sepiolite, 20% ammonium dichromate, 6% light calcium carbonate, 3% aluminum silicate, 8% powder Coal ash hollow floating beads, 7% wollastonite powder, 10% clay, 1% cellulose ether, 3% concrete expansion agent, 0.1% tin oxide, 0.6% polypropylene fiber are put into the V-type forced mixer In the middle, turn on the machine and stir for 15 minutes to make a powdery mixture. Take water as needed and the above-mentioned fireproof coating powder in a weight ratio of 0.8-0.85, and stir to form a thick slurry-like tunnel waterproof coating.

Embodiment 2

[0023] 0.5% 582 resin, 28% Portland cement, 13% sepiolite, 19% ammonium dichromate, 7% light calcium carbonate, 2% aluminum silicate, 9% powder Coal ash hollow floating beads, 6% wollastonite powder, 11% clay, 1.1% cellulose ether, 2.7% concrete expansion agent, 0.2% tin oxide, 0.5% polypropylene fiber are put into the V-type forced mixer In the middle, turn on the machine and stir for 12 minutes to make a powdery mixture. Take water as needed and the above-mentioned fireproof coating powder in a weight ratio of 0.8-0.85, and stir to form a thick slurry-like tunnel waterproof coating.

Embodiment 3

[0025] 0.8% 582 resin, 28% Portland cement, 15% sepiolite, 20% ammonium dichromate, 5% light calcium carbonate, 2.5% aluminum silicate, 12.5% ​​powder Coal ash hollow floating beads, 5.1% wollastonite powder, 8% clay, 1.5% cellulose ether, 1.1% concrete expansion agent, 0.1% tin oxide, 0.4% polypropylene fiber are put into the V-type forced mixer In the middle, turn on the machine and stir for 15 minutes to make a powdery mixture. Take water as needed and the above-mentioned fireproof coating powder in a weight ratio of 0.8-0.85, and stir to form a thick slurry-like tunnel waterproof coating.

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PUM

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Abstract

The invention provides a powdery mixture of a multi-component tunnel fire retardant coating, which is prepared from 582 resin, Portland cement, sepiolite, ammonium dichromate, light calcium carbonate, aluminum silicate, fly ash hollow floating beads, wollastonite powder, argil, cellulose ether, a concrete expanding agent, tin oxide and polypropylene fiber. The powdery mixture is prepared by throwing the fire retardant coating into a V-shaped forced mixer according to the proportion of the components; stirring the mixture for 10 to 15 minutes to prepare the powdery mixture; stirring water and the fire retardant coating powder in a weight ratio of 0.8-0.85 into thick paste; and spraying a tunnel from the waist to the top with spray painting equipment to reach the predetermined thickness.

Description

technical field [0001] The invention relates to a fireproof material coating and its preparation method and construction technology, in particular to a fireproof coating sprayed on the surface of a tunnel wall. Background technique [0002] Tunnels refer to underground buildings and structures built below the ground of mountains, rivers, straits, and cities for the passage of vehicles, pedestrians, water, pipelines, etc., or for mining mineral deposits, military engineering, etc. Since the inside of the tunnel is made of concrete and reinforced concrete, prestressed concrete floor fireproof coatings can be used for fire prevention. Concrete heats up rapidly in a fire and reduces its strength, so as to avoid the collapse of the tunnel caused by the concrete bursting and the loss of supporting capacity of the steel reinforcement in the lining. There are multiple tunnel fireproof coatings and construction methods in the prior art, such as CN1544556 discloses a tunnel fireproof...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/04C04B111/28
CPCC04B2103/0022C04B2111/00482C04B2111/28C04B2111/27C04B28/04Y02W30/91C04B14/041C04B14/042C04B14/043C04B14/10C04B14/28C04B16/0633C04B18/08C04B22/008C04B22/06C04B22/087C04B24/24C04B24/383C04B20/002
Inventor 彭勇
Owner 成都威邦科技有限公司
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