Anti-seepage type fireproof coating for tunnel

A fire-resistant coating and anti-seepage technology, applied in the field of chemical coatings, can solve the problems of short fire protection time, complicated construction, coating peeling, etc., and achieve the effects of easy construction and operation, good fireproof performance and strong adhesion

Inactive Publication Date: 2015-12-30
高科
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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 fireproof coatings have emerged. Although they can achieve fireproofing, the products have disadvantages such as complex construction, long-term coating peeling off, 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 type tunnel fireproof coating is prepared by stirring the following raw materials according to the weight ratio: 80-88 parts of Portland cement, 30-34 parts of white blue cement, 20-30 parts of styrene-acrylic emulsion, 30-35 parts of bismuth Phenolic epoxy resin emulsion, 6-8 parts of potassium hydroxide, 10-11 parts of magnesium hydroxide, 10-14 parts of starch, 6-8 parts of ammonium dichromate, 6-8 parts of light calcium carbonate, 10-16 parts Parts of ethyl cellulose, 5-9 parts of glass fiber, 14-18 parts of fly ash hollow floating beads, 3-5 parts of diatomaceous earth, 6-8 parts of vermiculite, 6-8 parts of mica, 6-8 parts of three Aluminum polyphosphate, 8-10 parts of Tao Shang, 5-7 parts of pentaerythritol.

Embodiment 2

[0012] An anti-seepage type tunnel fireproof coating is prepared by stirring the following raw materials according to the weight ratio: 80-88 parts of Portland cement, 30-34 parts of white blue cement, 20-30 parts of styrene-acrylic emulsion, 30-35 parts of bismuth Phenolic epoxy resin emulsion, 6-8 parts of potassium hydroxide, 10-11 parts of magnesium hydroxide, 10-14 parts of starch, 6-8 parts of ammonium dichromate, 6-8 parts of light calcium carbonate, 10-16 parts Parts of ethyl cellulose, 5-9 parts of glass fiber, 14-18 parts of fly ash hollow floating beads, 3-5 parts of diatomaceous earth, 6-8 parts of vermiculite, 6-8 parts of mica, 6-8 parts of three Aluminum polyphosphate, 8-10 parts of Tao Shang, 5-7 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 bottom to top, 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 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 made by the above-mentioned embodiments 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 resistan...

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Abstract

The invention discloses an anti-seepage type fireproof coating for a tunnel. The anti-seepage type fireproof coating is prepared by mixing raw materials in parts by weight as follows: 80-88 parts of portland cement, 30-34 parts of baitelan cement, 20-30 parts of a styrene-acrylic emulsion, 30-35 parts of bisphenol epoxidized resin emulsion, 6-8 parts of potassium hydroxide, 10-11 parts of magnesium hydroxide, 10-14 parts of starch, 6-8 parts of ammonium dichromate, 6-8 parts of light calcium carbonate, 10-16 parts of ethyl cellulose, 5-9 parts of glass fiber, 14-18 parts of fly ash hollow floating beads, 3-5 parts of diatomaceous earth, 6-8 parts of vermiculite, 6-8 parts of mica, 6-8 parts of aluminum triphosphate, 8-10 parts of pottery clay and 5-7 parts of pentaerythritol. A product has good fireproof performance, has an anti-seepage function and makes up the defect of high probability of seepage of a conventional fireproof coating. The fireproof coating has high bonding property and excellent overall performance and is easy to use and operate during construction and suitable for the fields of traffic tunnels, civil defense, 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 turn into steam and expa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/34C04B111/28C04B111/27
Inventor 高科
Owner 高科
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