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Flame-retardant smoke-suspension asphalt for environment-friendly road and preparation method of asphalt

A road and environmental protection technology, applied in building thermal insulation materials, building components, buildings and other directions, can solve the problems of high toxicity of flame retardant asphalt flame retardant, large amount of asphalt burning smoke, and high construction requirements, and achieve low price and production. The effect of low cost and high reuse rate

Inactive Publication Date: 2013-04-17
TIANJIN MUNICIPAL ENG DESIGN & RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention aims to solve the technical problems of existing road-use flame-retardant asphalt flame retardants such as high toxicity, large amount of smoke generated by asphalt combustion, high cost, and high construction requirements, and provides a kind of flame-retardant and smoke-suppressing asphalt for environmental protection roads and its preparation method , which can meet the requirements for the use of asphalt pavement in road tunnels

Method used

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  • Flame-retardant smoke-suspension asphalt for environment-friendly road and preparation method of asphalt
  • Flame-retardant smoke-suspension asphalt for environment-friendly road and preparation method of asphalt
  • Flame-retardant smoke-suspension asphalt for environment-friendly road and preparation method of asphalt

Examples

Experimental program
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Effect test

Embodiment 1

[0035] Take by weight: 100 parts of Korean SK90# asphalt; 2 parts of hydrotalcite powder; 10 parts of aluminum hydroxide; 1 part of zinc borate;

[0036] (1) Raise the temperature of the Korean SK90# asphalt to 130°C~135°C and keep it in a molten state;

[0037] (2) Add hydrotalcite powder, aluminum hydroxide and zinc borate in proportion to the molten Korean SK90# asphalt, and use a stirrer to stir evenly;

[0038] (3) Use a high-speed shearing machine to cut at a speed of 1000r / min for 10 to 15 minutes;

[0039] (4) Use a high-speed shearing machine to cut for 15-20 minutes at a speed of 5000r / min.

Embodiment 2

[0041] Take by weight: 100 parts of Korean SK90# asphalt; 4 parts of hydrotalcite powder; 15 parts of aluminum hydroxide; 1 part of silane coupling agent;

[0042] (1) Raise the temperature of the Korean SK90# asphalt to 130°C~135°C and keep it in a molten state;

[0043] (2) Add hydrotalcite powder, aluminum hydroxide and silane coupling agent in proportion to the molten Korean SK90# asphalt, and use a stirrer to stir evenly;

[0044] (3) Use a high-speed shearing machine to cut at a speed of 1000r / min for 10 to 15 minutes;

[0045] (4) Use a high-speed shearing machine to cut for 15-20 minutes at a speed of 5500r / min.

Embodiment 3

[0047] Take by weight: 100 parts of Korean SK90# asphalt; 5 parts of hydrotalcite powder; 20 parts of aluminum hydroxide; 5 parts of zinc borate; 3 parts of silane coupling agent;

[0048] (1) Raise the temperature of the Korean SK90# asphalt to 130°C~135°C and keep it in a molten state;

[0049] (2) Add hydrotalcite powder, aluminum hydroxide, zinc borate and silane coupling agent in proportion to the molten Korean SK90# asphalt, and use a stirrer to stir evenly;

[0050] (3) Use a high-speed shearing machine to cut at a speed of 1000r / min for 10 to 15 minutes;

[0051] (4) Use a high-speed shearing machine to cut for 15-20 minutes at a speed of 5500r / min.

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Abstract

The invention discloses flame-retardant smoke-suspension asphalt for an environment-friendly road and a preparation method of the asphalt. The flame-retardant smoke-suspension asphalt consists of the following components in parts by weight: 100 parts of basic asphalt, 2-10 parts of hydrotalcite powder, 10-20 parts of aluminium hydroxide and / or magnesium hydroxide, 0-5 parts of antismoke agent and 0-5 parts of coupling agents. The preparation method comprises the following steps of: raising the temperature of the basic asphalt so that the basic asphalt is in a melting state; adding the hydrotalcite powder, the aluminium hydroxide and / or the magnesium hydroxide, the antismoke agent and the coupling agent according to the proportions to uniformly stir by a stirrer; and shearing at high speed by a shearing machine. The flame-retardant smoke-suspension asphalt belongs to environment-friendly inorganic class composite asphalt, is good in flame-retardant and smoke suspension effect, high in oxygen indexes and good in stability, can inhibit generation of asphalt smoke and the hydrogen chloride, and avoids toxicity, corrosion and secondary pollution; and meanwhile, the preparation method for the flame-retardant smoke-suspension asphalt is relatively low in production cost, environment-friendly in production, simple in preparation process, wide in application and suitable for popularization.

Description

technical field [0001] The invention relates to an asphalt material composition and a preparation method thereof, in particular to a road-use flame-retardant and smoke-suppressing asphalt and a preparation method thereof. Background technique [0002] In recent years, my country's high-grade highways are gradually extending from plains and slightly hilly areas to mountainous and heavy hilly areas, so the construction of tunnels has achieved rapid development. Asphalt pavement material is widely used in tunnel pavement because of its advantages of comfortable driving, low noise and high traffic safety. However, while the tunnel traffic is constantly improving, the risk of tunnel fire accidents is also increasing. When accidents such as collision of faulty vehicles and spontaneous combustion of vehicle-loaded goods occur in the tunnel, it is very easy to cause tunnel fire accidents. Once a fire breaks out in the tunnel, the asphalt will participate in the combustion and prod...

Claims

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Application Information

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IPC IPC(8): C08L95/00C08K13/02C08K3/26C08K3/22C08K3/38C08K3/36
Inventor 贺海王晓华王新岐王朝辉周骊巍王艳宁隋洪瑞白子建孙晓龙刘志胜蒋宏伟冯炜黄文高立鑫杨越
Owner TIANJIN MUNICIPAL ENG DESIGN & RES INST
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