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A kind of anti-seepage fireproof coating for tunnel

A fireproof coating and tunnel technology, applied in the field of chemical coatings, can solve the problems of long-term coating peeling, complicated construction, short fire protection time, etc., and achieve the effect of making up for easy water seepage, good fire resistance, and easy construction and operation.

Inactive Publication Date: 2015-12-09
上海世范乐建新材料有限公司
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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 disadvantages such as complex construction, long-term coating peeling, and short fire protection time, which are related to people's life safety and fire safety. If you can't be a little sloppy

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0010] An anti-seepage fireproof coating for tunnels is prepared by stirring the following raw materials according to the weight ratio: 50-60 parts of sulphoaluminate cement, 30-35 parts of AEC expansion cement, 20-24 parts of soybean oil fatty acid alkyd resin, 18-24 parts Parts of acrylate polymer emulsion, 10-12 parts of aluminum hydroxide, 5-8 parts of starch, 10-12 parts of perlite, 5-8 parts of fly ash, 10-12 parts of polypropylene staple fiber, 4-8 parts of carboxyl Methyl cellulose, 10-15 parts of fly ash glass beads, 5-9 parts of diatomaceous earth, 5-9 parts of ammonium polyphosphate, and 5-8 parts of pentaerythritol.

Embodiment 2

[0012] An anti-seepage fireproof coating for tunnels is prepared by stirring the following raw materials according to the weight ratio: 50-60 parts of sulphoaluminate cement, 30-35 parts of AEC expansion cement, 20-24 parts of soybean oil fatty acid alkyd resin, 18-24 parts Parts of acrylate polymer emulsion, 10-12 parts of aluminum hydroxide, 5-8 parts of starch, 10-12 parts of perlite, 5-8 parts of fly ash, 10-12 parts of polypropylene staple fiber, 4-8 parts of carboxyl Methylcellulose, 10-15 parts of fly ash glass beads, 5-9 parts of diatomaceous earth, 5-9 parts of ammonium polyphosphate, 5-8 parts of pentaerythritol and 3-5 parts of ammonium borate.

Embodiment 3

[0014] The formulations of the above examples are all prepared and constructed according to the following methods: (1) Ingredients, mix the paint and water at a ratio of about 0.7, first add a small amount of water while stirring while adding the paint, and add 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 bottom to top, each spraying is 3-7mm thick, and the construction interval is based on the fact that the last paint is basically dry, and so on, until the design thickness is sprayed, After the last spraying, if it needs to be smoothed, use the method of wiping and smoothing.

[0015] The finished products prepared in the above examples can all reach the following technical indicators after testing: 1. Sieve rate ≤ 1.0%; 2. Dry density ≤ 580kg / m 3 ;3. Water resistance: h≥24, the coating will not crack, peel off or fall off; 4. Alkali resistance: h≥24, t...

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Abstract

A disclosed Tunnel impervious fireproof paint is mainly prepared by stirring the following raw materials in parts by weight: 50-60 parts of sulphoaluminate cement, 30-35 parts of AEC expansive cement, 20-24 parts soybean oil fatty acid alkyd resin, 18-24 parts of acrylate polymer emulsion, 10-12 parts of aluminium hydroxide, 5-8 parts of starch, 10-12 parts of perlite, 5-8 parts of fly ash, 10-12 parts of polypropylene short fiber, 4-8 parts of carboxymethyl cellulose, 10-15 parts of fly-ash glass microsphere, 5-9 parts of diatomite, 5-9 parts of ammonium polyphosphate and 5-8 parts of pentaerythritol. The product provided by the invention not only is good in fireproof performance, but also has water seepage resistant performance, and thus makes up the disadvantage the conventional fireproof paints are easily subjected to water seepage; and the fireproof paint is green, environment-friendly, strong in caking property, easy to construct and operate and excellent in comprehensive performance, and is suitable for the fields such as traffic tunnels, people's air defence buildings, underground buildings and the like.

Description

technical field [0001] The invention relates to an anti-seepage fireproof coating for tunnels, 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 turn into steam and expa...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B28/06C04B24/28C04B111/28
Inventor 石小强
Owner 上海世范乐建新材料有限公司
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