Anti-seepage tunnel fire retardant coating

A technology for fire-resistant coatings and tunnels, applied in the field of chemical coatings, can solve the problems of complex construction, short fire protection time, long-term coating peeling, etc., and achieve the effects of good fire resistance, poor waterproof function, and excellent comprehensive performance.

Inactive Publication Date: 2016-01-06
陈科
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the construction industry and other related industries, various types of fire-resistant coatings have emerged. Although they can achieve fire protection, the products have disadvant

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0010] An anti-seepage type tunnel fireproof coating is prepared by mixing the following raw materials according to the weight ratio: 100-105 parts of refractory cement, 20-30 parts of slag Portland cement, 30-35 parts of acrylate polymer emulsion, 10-15 parts Propylene acetate resin emulsion, 5-7 parts of sodium hydroxide, 10-15 parts of perlite, 4-8 parts of fly ash, 3-4 parts of ammonium dichromate, 2-6 parts of light calcium carbonate, 10-16 parts Parts of polypropylene staple fiber, 2-6 parts of carboxymethyl cellulose, 7-9 parts of diatomaceous earth, 4-9 parts of vermiculite, 3-8 parts of ammonium polyphosphate, 5-8 parts of clay, 3-5 parts of pentaerythritol .

Embodiment 2

[0012] An anti-seepage type tunnel fireproof coating is prepared by mixing the following raw materials according to the weight ratio: 100-105 parts of refractory cement, 20-30 parts of slag Portland cement, 30-35 parts of acrylate polymer emulsion, 10-15 parts Propylene acetate resin emulsion, 5-7 parts of sodium hydroxide, 10-15 parts of perlite, 4-8 parts of fly ash, 3-4 parts of ammonium dichromate, 2-6 parts of light calcium carbonate, 10-16 parts Parts of polypropylene staple fiber, 2-6 parts of carboxymethyl cellulose, 7-9 parts of diatomaceous earth, 4-9 parts of vermiculite, 3-8 parts of ammonium polyphosphate, 5-8 parts of clay, 3-5 parts of pentaerythritol and 4-8 parts of ammonium borate.

Embodiment 3

[0014] The formulas of the above-mentioned examples are all prepared and constructed according to the following methods: (1) Ingredients, mix the paint and water in a ratio of about 0.7, first add a small amount of water while stirring, add the paint, and replenish water in an appropriate amount, and generally stir for 20 minutes to form a thick paste Slurry (2) construction, use a sprayer to spray from the waist of the tunnel from the bottom, each spraying is 3-7mm thick, and the construction interval is based on the fact that the last coating is basically dry, and so on, until the spraying reaches the design thickness, and finally After one spraying, if it needs to be smoothed, use the method of wiping and smoothing.

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Abstract

The invention discloses an anti-seepage tunnel fire retardant coating which is mainly prepared by stirring the following raw materials in parts by weight: 100-105 parts of refractory cement, 20-30 parts of portland blast furnace slag cement, 30-35 parts of an acrylate polymer emulsion, 10-15 parts of an allyl acetate resin emulsion, 5-7 parts of sodium hydroxide, 10-15 parts of perlite, 4-8 parts of flyash, 3-4 parts of ammonium dichromate, 2-6 parts of light calcium carbonate, 10-16 parts of polypropylene short fiber, 2-6 parts of carboxymethylcellulose, 7-9 parts of kieselguhr, 4-9 parts of vermiculite, 3-8 parts of ammonium polyphosphate, 5-8 parts of pottery clay and 3-5 parts of pentaerythritol. The anti-seepage tunnel fire retardant coating is good in fireproof performance, and has an anti-seepage function; the defect of a poor waterproof function of the traditional fire retardant coating is compensated; the fire retardant coating is environmentally friendly, high in caking property, easy to construct and operate, good in overall performance, and suitable for the fields of traffic tunnels, civil air defence, underground buildings and the like.

Description

technical field [0001] The invention relates to an anti-seepage type tunnel fireproof coating, which belongs to the technical field of chemical coatings. technical background [0002] In architecture, the cross-sectional area exceeds 30m 2 The underground artificially constructed passage is defined as a tunnel. Tunnels not only undertake the task of transportation, but also function as channels for optical cables, cables, and even oil and water pipelines. Although the reinforced concrete components used as the main building in the tunnel are non-combustible materials, the tunnel fire has the characteristics of a rapid rise in ambient temperature after combustion, a long duration, a large fire range, and difficulties in fire fighting and entry. In a short period of time after the fire broke out, the local temperature of the fire site in the tunnel will rise rapidly to 1000°C. As the temperature continues to rise, the bound water in the concrete will become steam and expand,...

Claims

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Application Information

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IPC IPC(8): C04B28/08C04B111/28
Inventor 陈科
Owner 陈科
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