Halogen-free roadfire-resistant asphalt

A technology for road petroleum asphalt and asphalt, applied in the field of flame retardant asphalt, can solve problems such as environmental pollution, loss of life and property of the country and people, and achieve the effects of less casualties and property losses, good social and economic benefits, and a simple preparation method

Inactive Publication Date: 2007-03-28
SHENZHEN OCEAN POWER INDUSTRIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When a traffic accident occurs in the tunnel, the road surface is caught on fire. Because the fire develops rapidly, the personnel have no time to evacuate, resulting in greater casualties and unnecessary losses to the country and people's lives and properties. In addition, when the asphalt is on fire, a large amount of black smoke is produced, which has caused serious pollution to the environment.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Weighing by weight: 50 parts of heavy traffic road petroleum asphalt AH-70; 12 parts of melamine phosphate; 7 parts of zinc borate; 7 parts of antimony trioxide; 10 parts of magnesium hydroxide; 10 parts of aluminum hydroxide; parts; modifier 1.5 parts; coupling agent 0.8 parts.

[0030] First, heavy traffic road asphalt AH-70 is melted at a constant temperature of 80°C, and melamine phosphate, zinc borate, antimony trioxide, magnesium hydroxide, aluminum hydroxide, coupling agent and blending agent are added to the molten asphalt. And stir while adding, so that each component can be uniformly mixed in the asphalt, then add the modifier, while adding the modifier, while using a high-speed shearer to cut at 1000r / min for 10min, so that the modifier melts Then continue to shear at a high speed of 5000-6000r / min for 30 minutes, the modifier gradually becomes thinner under the action of shearing, and finally the fine particles are evenly distributed in the asphalt, thus mak...

Embodiment 2

[0032] Weighing by weight: 70 parts of heavy traffic road petroleum asphalt AH-70; 10 parts of melamine phosphate; 2 parts of zinc borate; 2 parts of antimony trioxide; 4 parts of magnesium hydroxide; 4 parts of aluminum hydroxide; blending agent 2 parts; 0.5 parts of modifier; 0.3 parts of coupling agent. The preparation process is the same as in Example 1.

Embodiment 3

[0034] Weighing by weight: 60 parts of heavy traffic road petroleum asphalt AH-70; 12 parts of melamine phosphate; 4.5 parts of zinc borate; 4.5 parts of antimony trioxide; 7 parts of magnesium hydroxide; part; modifier 1 part; coupling agent 0.55 part. The preparation process is the same as in Example 1.

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PUM

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Abstract

The invention relates to no halogen type road using inflaming retarding asphalt whose components part by weight are as follows: heavy traffic road petroleum asphalt 50-70, melamine phosphate 9-15, zinc borate 2-7, antimony trioxide 2-7, magnesium hydroxide 4-10, aluminum hydroxide 4-10, tempering agent 2-3.5, modifier 0.5-1.5, coupling agent 0.3-0.8. While burning it has high oxygen index to form stable charring layer to arise self extinguishing, little lamp black and no halogen hydride harmful gas to reduce environment pollution. Thus it has wide application prospect, good socioeconomic performance. The preparing method is simple, effective, economic, convenient, and widely used.

Description

【Technical field】 [0001] The invention relates to a flame-retardant asphalt, more specifically, the invention relates to an environment-friendly, halogen-free flame-retardant asphalt for road use. 【Background technique】 [0002] With the improvement of road users' requirements for road driving quality, smooth, wear-resistant and low-noise asphalt concrete pavement may replace cement concrete pavement, and gradually become the mainstream of tunnel pavement development. According to domestic and foreign reports, it is known that during the use of asphalt pavement in tunnels, the fire caused by traffic accidents is a problem that must be paid attention to during the use of tunnel pavement. When a traffic accident occurs in the tunnel, the road surface is caught on fire. Because the fire develops rapidly, the personnel have no time to evacuate, resulting in greater casualties and unnecessary losses to the country and people's lives and properties. In addition, when the asphalt ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L95/00C08K3/38E01C7/18
Inventor 张萍廖克俭何唯平
Owner SHENZHEN OCEAN POWER INDUSTRIAL CO LTD
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