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Safe and environment-friendly asphalt for road and preparation method thereof

A safe and environmentally friendly, road petroleum asphalt technology, applied in building insulation materials, building components, climate change adaptation, etc., can solve problems such as poor flame retardancy, reduce secondary pollution, less black smoke, and broad application prospects Effect

Active Publication Date: 2014-07-09
SHANXI PROVINCIAL RES INST OF COMM +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the asphalt described in this invention has a certain flame retardancy, the flame retardancy is still not good, and it still needs to be hot mixed to generate a lot of dense smoke

Method used

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  • Safe and environment-friendly asphalt for road and preparation method thereof

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Effect test

example 1

[0014] Composition: 80 parts of heavy traffic road petroleum asphalt AH-70, 9 parts of high viscosity modifier TPS, 3 parts of Sasobit warm mix asphalt modifier, 4 parts of polyphosphate amine with a polymerization degree of 1200, and 1 part of pentaerythritol.

[0015] Preparation: 1) Molten heavy-traffic road petroleum asphalt: keep the heavy-traffic road petroleum asphalt at 130°C to reach a molten state; 2) Add high-viscosity modifier: add high-viscosity modifier to the molten heavy-traffic road petroleum asphalt, Stir while adding until all the additives are immersed in the asphalt, then put the asphalt in an oven at 105°C for about two hours, then use a high-speed shearer to cut at 4000r / min for 30min, and finally the high-viscosity modifier is The tiny particles are evenly distributed in the asphalt; 3) Add warm-mix asphalt modifier and flame retardant: Then add warm-mix modifier to the asphalt, stir while adding, and continue to shear at 4000r / min for 30min at high spee...

example 2

[0017] Composition: 80 parts of heavy traffic road petroleum asphalt AH-90, 10 parts of high viscosity modifier TPS, 2 parts of Sasobit warm mix asphalt modifier, 4 parts of polyphosphate amine with a polymerization degree of 5000, and 1 part of pentaerythritol.

[0018] Preparation: 1) Molten heavy-traffic road petroleum asphalt: keep the heavy-traffic road petroleum asphalt at 140°C to reach a molten state; 2) Add high-viscosity modifier: add high-viscosity modifier to the molten heavy-traffic road petroleum asphalt, Stir while adding until all the additives are immersed in the asphalt, then put the asphalt in an oven at 105°C for about two hours, and then cut it with a high-speed shearer at 5000r / min for 30min, and finally the high-viscosity modifier will be in the form of tiny particles Evenly distributed in the asphalt; 3) Add warm mix asphalt modifier and flame retardant: Then add warm mix modifier to the asphalt, stir while adding, and continue to shear at 5000r / min for ...

example 3

[0020] Composition: heavy traffic road petroleum asphalt AH-9080 parts, high viscosity modifier TPS10 parts, Sasobit warm mix asphalt modifier 2 parts, methylcyclopentadiene manganese tricarbonyl 2 parts, polyphosphate amine with a polymerization degree of 3000 2 parts, 0.5 parts of pentaerythritol.

[0021] Preparation: 1) Molten heavy-traffic road petroleum asphalt: keep the heavy-traffic road petroleum asphalt at 150°C to reach a molten state; 2) Add high-viscosity modifier: add high-viscosity modifier to the molten heavy-traffic road petroleum asphalt, Stir while adding until all the additives are immersed in the asphalt, then put the asphalt in an oven at 105°C for about two hours, then cut it with a high-speed shear for 30 minutes, and finally the high-viscosity modifier is uniformly distributed in the form of tiny particles 3) Add warm-mix asphalt modifier and flame retardant: then add warm-mix modifier to asphalt, stir while adding, and continue to shear at 4000-5000r / ...

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Abstract

The invention specifically relates to a safe and environment-friendly asphalt for a road and a preparation method thereof, belonging to the technical field of road engineering materials. The asphalt comprises, by mass, 80 to 85 parts of heavy duty pavement petroleum asphalt, 9 to 10 parts of hyperviscous modifier, 2 to 3 parts of Sasobit warm mix asphalt modifier and 2 to 5 parts of fire retardant. Compared with the prior art, through addition of the fire retardant, the safe and environment-friendly asphalt provided by the invention has a high oxygen index, produces a small amount of black smoke during combustion and reduces pollution to the environment; moreover, addition of a warm mixing agent enables viscosity and construction temperature of the asphalt to be reduced and secondary pollution to the environment to be decreased. Thus, the safe and environment-friendly asphalt has wide application prospects and good social and economic benefits in construction of tunnel pavements.

Description

technical field [0001] The invention belongs to the technical field of road engineering materials, and in particular relates to a safe and environment-friendly road asphalt and a preparation method thereof. Background technique [0002] In recent years, my country's high-grade highway construction has developed rapidly, and tunnels have gradually become key projects because they can reduce driving distance and increase space utilization. In tunnel construction, asphalt pavement accounts for more than 80%. However, there are currently two great problems with asphalt as a pavement material. [0003] First of all, because asphalt is flammable in the air, especially when it is used as a pavement material in long-distance tunnels, the risk of fire caused by it is gradually increasing. With the complexity of traffic volume and vehicle conditions, traffic accidents inside tunnels are becoming more frequent. Due to the limited space in the tunnel, once a fire occurs, the temperat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L95/00C08K5/56C08K3/32C08K5/053
CPCY02A30/30
Inventor 吴喜荣刘少文申俊敏
Owner SHANXI PROVINCIAL RES INST OF COMM
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