Novel tunnel fireproof paint
A technology for fire-resistant coatings and tunnels, applied in fire-resistant coatings, alkali metal silicate coatings, coatings, etc., can solve problems such as easy burning and collapse, difficulties in evacuation and firefighting, and high crowd density, and achieve good fire resistance and heat insulation. Avoid bursting, light weight effect
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Embodiment 1
[0011] A new type of tunnel fireproof coating, said fireproof coating is composed of the following components by weight: 26 parts of water glass, 13 parts of silicate, 17 parts of styrene-acrylic emulsion, 4 parts of aluminum silicate fiber, 35 parts of magnesium hydroxide, 6 parts of tin oxide, 3 parts of ammonium borate, 11 parts of sepiolite, 26 parts of light calcium carbonate, 13 parts of expanded perlite, 10.5 parts of melamine, 4 parts of pentaerythritol, 3.5 parts of vermiculite, 2 parts of ammonium dichromate, dispersed 1.5 parts.
[0012] Coating thickness: 10mm; fire resistance limit: 80min; surface dryness: 10h; water resistance: after 24h test, the coating will not crack, fall off, swell or change color.
Embodiment 2
[0014] A novel fireproof coating for tunnels, characterized in that the fireproof coating consists of the following components in parts by weight: 30 parts of water glass, 10 parts of silicate, 20 parts of styrene-acrylic emulsion, 5 parts of aluminum silicate fiber, hydroxide 40 parts of magnesium, 7 parts of tin oxide, 4 parts of ammonium borate, 12 parts of sepiolite, 27 parts of light calcium carbonate, 14 parts of expanded perlite, 11 parts of melamine, 5 parts of pentaerythritol, 4 parts of vermiculite, ammonium dichromate 3 parts, 2 parts of dispersant.
[0015] Coating thickness: 12mm; fire resistance limit: 75min; surface dryness: 12h; water resistance: after 24h test, the coating will not crack, fall off, swell or change color.
Embodiment 3
[0017] A new type of tunnel fireproof coating, said fireproof coating is composed of the following components by weight: 22 parts of water glass, 15 parts of silicate, 15 parts of styrene-acrylic emulsion, 3 parts of aluminum silicate fiber, 30 parts of magnesium hydroxide, 5 parts of tin oxide, 2 parts of ammonium borate, 10 parts of sepiolite, 25 parts of light calcium carbonate, 12 parts of expanded perlite, 10 parts of melamine, 3 parts of pentaerythritol, 3 parts of vermiculite, 1 part of ammonium dichromate, dispersed 0.8 parts of the agent.
[0018] Coating thickness: 13mm; fire resistance limit: 70min; surface dryness: 11h; water resistance: after 24h test, the coating will not crack, fall off, swell or change color.
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