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Sound-absorbing and fireproof paint for tunnels

A fireproof coating and tunnel technology, applied in the field of chemical coatings, can solve problems such as complex construction, short fire protection time, and long-term coating shedding, and achieve the effects of convenient construction, long fire protection time, and good adhesion performance

Inactive Publication Date: 2014-03-19
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] A sound-absorbing and fire-resistant coating for tunnels is prepared by mixing the following raw materials according to the weight ratio: 55-65 parts of sulphoaluminate cement, 70-75 parts of refractory cement, 20-30 parts of white blue cement, 20-30 parts of polyacrylic acid Emulsion, 20-30 parts of polyvinyl acetate emulsion, 5-9 parts of magnesium hydroxide, 5-9 parts of aluminum hydroxide, 10-13 parts of perlite, 5-9 parts of fly ash, 5-8 parts of ethyl cellulose element, 5-15 parts of glass fiber, 10-15 parts of glass hollow floating beads, 10-14 parts of diatomaceous earth, 8-10 parts of ammonium dichromate, 5-9 parts of mica, and 5-8 parts of pentaerythritol.

Embodiment 2

[0012] A sound-absorbing and fire-resistant coating for tunnels is prepared by mixing the following raw materials according to the weight ratio: 55-65 parts of sulphoaluminate cement, 70-75 parts of refractory cement, 20-30 parts of white blue cement, 20-30 parts of polyacrylic acid Emulsion, 20-30 parts of polyvinyl acetate emulsion, 5-9 parts of magnesium hydroxide, 5-9 parts of aluminum hydroxide, 10-13 parts of perlite, 5-9 parts of fly ash, 5-8 parts of ethyl cellulose element, 5-15 parts of glass fiber, 10-15 parts of glass hollow floating beads, 10-14 parts of diatomaceous earth, 8-10 parts of ammonium dichromate, 5-9 parts of mica, 5-8 parts of pentaerythritol and 3-6 parts 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

The invention discloses a sound-absorbing and fireproof paint for tunnels. The paint is mainly composed of the following raw materials in parts by weight: 55 to 65 parts of sulfoaluminate cement, 70 to 75 parts of fireproof cement, 20 to 30 parts of white and special blue cement, 20 to 30 parts of polyacrylic acid emulsion, 20 to 30 parts of polyvinyl acetate emulsion, 5 to 9 parts of magnesium hydroxide, 5 to 9 parts of aluminium hydroxide, 10 to 13 parts of perlite, 5 to 9 parts of fly ash, 5 to 8 parts of ethyl cellulose, 5 to 15 parts of glass fiber, 10 to 15 parts of glass hollow floating beads, 10 to 14 parts of diatomite, 8 to 10 parts of ammonium dichromate, 5 to 9 parts of mica, and 5 to 8 parts of pentaerythritol; and the paint is prepared by mixing and stirring the raw materials mentioned above according to the ratio. The sound-absorbing and fireproof paint has the advantages of long lasting fireproof effect, good adhesive performance, and convenience for construction; is suitable for various tunnel walls, and has a sound absorbing function on the basis of a fireproof function.

Description

technical field [0001] The invention relates to a sound-absorbing and fire-proof 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 a...

Claims

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Application Information

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IPC IPC(8): C04B28/06C04B111/52
Inventor 石小强
Owner 上海世范乐建新材料有限公司
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