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Flame-retardant low-viscosity rubber asphalt and preparation method thereof

A rubber asphalt and rubber powder technology, which is applied in the field of flame-retardant low-viscosity rubber asphalt and its preparation, can solve the problems of reducing the flame-retardant oxygen index of rubber asphalt, mixing, paving, rolling temperature, high energy consumption, and environmental pollution. Achieve the effects of increasing the softening point, reducing the flame retardant oxygen index, and overcoming environmental pollution

Active Publication Date: 2021-10-22
CHINA PETROLEUM & CHEM CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a flame-retardant low-viscosity rubber asphalt, which can effectively reduce the flame-retardant oxygen index of the rubber asphalt and the temperature of mixing, paving, and rolling of the mixture, and overcome the problems of polluting the environment, high energy consumption, and aging of the asphalt. Problem; The present invention provides its preparation method simultaneously

Method used

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  • Flame-retardant low-viscosity rubber asphalt and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Heat 100 parts of base asphalt to a molten state, add 2 parts of rubber powder, 8 parts of chlorinated paraffin, 5 parts of stearic acid, 2 parts of low-density polyethylene, 6 parts of aromatic oil, and cut at 165 ° C for 30 minutes.

Embodiment 2

[0027] Heat 100 parts of base asphalt to a molten state, add 3 parts of rubber powder, 6 parts of chlorinated paraffin, 3 parts of stearic acid, 1 part of barium stearate, 3 parts of low-density polyethylene, 8 parts of aromatic oil, at 160 ℃ shear 25min.

Embodiment 3

[0029] Heat 100 parts of base asphalt to a molten state, add 1.5 parts of rubber powder, 4 parts of chlorinated paraffin, 1 part of barium stearate, 0.5 parts of low-density polyethylene, 4 parts of catalytic cracking oil slurry, and shear at 170 ° C for 15 minutes That's it.

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Abstract

The invention belongs to the technical field of petroleum asphalt, and in particular relates to a flame-retardant low-viscosity rubber asphalt and a preparation method thereof. The flame-retardant low-viscosity rubber asphalt is made of the following raw materials in parts by mass: 100 parts of base asphalt, 0.5-3 parts of rubber powder, 0.5-10 parts of chlorinated paraffin, 1-10 parts of swelling agent, 0.5-3 parts of polystyrene Ethylene, 1 to 5 parts of stearic acid substances. The invention effectively reduces the flame retardant oxygen index of the rubber asphalt and the mixing, paving and rolling temperature of the mixture, and overcomes the problems of environmental pollution, high energy consumption and asphalt aging and decay. The preparation method of the invention is simple and easy to implement.

Description

technical field [0001] The invention belongs to the technical field of petroleum asphalt, and in particular relates to a flame-retardant low-viscosity rubber asphalt and a preparation method thereof. Background technique [0002] At present, rubber asphalt mixture is still the main road pavement material. The mixing temperature of ordinary rubber asphalt mixture is about 165°C, while the mixing temperature of modified rubber asphalt mixture is about 180°C. Heating rubber asphalt and mineral materials to such a high temperature not only consumes a lot of energy, but also aggravates the rubber Asphalt is aging, and a large amount of harmful gas will be emitted during production and construction, which will greatly endanger the health of construction workers. Therefore, the low-viscosity rubber asphalt that can reduce the mixing temperature of the mixture will have broad application prospects. [0003] At present, in the prior art, there is also a patent for adding a warm mix...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L95/00C08L21/00C08L91/00C08L23/06C08K5/09C08K5/098
CPCC08L95/00C08L2201/02C08L2201/08C08L2205/035C08L2205/08C08L2207/066C08L21/00C08L91/00C08L23/06C08K5/09C08K5/098
Inventor 马鹏程高淑美贾丽凤张传明许金山刘爱华毛冬梅
Owner CHINA PETROLEUM & CHEM CORP
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