Waste superpolymer based comprehensive asphaltic-mixture modifier and preparation method and application thereof

A technology of asphalt mixture and modifier, applied in building structure, building thermal insulation material, building components and other directions, can solve the problems of complex formula components and synthesis process, low cost performance, unfavorable low temperature performance, etc., and achieve social benefits And the environmental benefits are significant, the promotion and application prospects are broad, and the effect of reducing the application

Inactive Publication Date: 2015-08-26
SHANDONG UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are many similar modifiers in China, but these products have not been popularized and applied after their introduction. The possible reason is that some modifiers only focus on improving certain properties of asphalt mixture, such as high-temperature performance, but may not be effective in low-temperature performance. Unfavorable; the formula components and synthesis process are more complicated; the cost performance is not high

Method used

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  • Waste superpolymer based comprehensive asphaltic-mixture modifier and preparation method and application thereof
  • Waste superpolymer based comprehensive asphaltic-mixture modifier and preparation method and application thereof
  • Waste superpolymer based comprehensive asphaltic-mixture modifier and preparation method and application thereof

Examples

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Effect test

Embodiment 1

[0027] The raw material that this example adopts and the parts by weight of each component are:

[0028]

[0029] Take laboratory production 2000g of product of the present invention as example, the required weight of each raw material is as follows:

[0030]

[0031] The preparation method is as follows:

[0032] Pre-mix the weighed fiber and carbon black, use a disperser to mix the two evenly, and then mix them with waste polyethylene particles, waste tire rubber powder, and SBS evenly, and send them into the hopper of the twin-screw extruder; open the double-screw extruder For screw extrusion, set the temperature of each zone. The heating temperature of the first zone is 110°C, the second zone is 135°C, the third zone is 160°C, the fourth zone is 180°C, and the temperature of the head is 170°C. The rotation speed is set at 40 rpm; after heating to the set temperature, the valve of the hopper is opened, and the mixture is conveyed, mixed, melted, kneaded, extruded int...

Embodiment 2

[0038] The raw material that this example adopts and the parts by weight of each component are:

[0039]

[0040] Taking the production of 10kg of the product of the present invention as an example, the required weight of each raw material is as follows:

[0041]

[0042] The preparation method is as follows:

[0043] Pre-mix the weighed lignin fiber and carbon black, use a disperser to mix the two evenly, and then mix with waste polyethylene particles, waste tire rubber powder, and SBS evenly, and send them into the hopper of the twin-screw extruder; Turn on the twin-screw extrusion, set the temperature of each zone, the heating temperature of the first zone is 110°C, the second zone is 140°C, the third zone is 170°C, the fourth zone is 185°C, the head temperature is 175°C, extrude The speed of the machine is set at 50 rpm; after heating to the set temperature, the valve of the hopper is opened, and the mixture is conveyed, mixed, melted, kneaded, extruded into a rope-sh...

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Abstract

The invention belongs to the technical field of asphalt pavement materials and relates to a waste superpolymer based comprehensive asphaltic-mixture modifier and a preparation method and application thereof. The comprehensive asphaltic-mixture modifier comprises the following inorganic mineral filling materials in parts by weight: 30-60 parts of waste/reclaimed polyethylene particles, 20-50 parts of waste tire rubber powder, 10-20 parts of SBS, 5-15 parts of fiber and 0.5-1.5 parts of carbon black. The preparation method comprises the steps of raw material mixing, stirring, heating, mixing, extrusion and cutting. An application method of the comprehensive asphaltic-mixture modifier is simple, and the comprehensive asphaltic-mixture modifier of which the weight accounts for 0.1-0.3 percent of the weight of ores can be directly added to a mixing kettle. The product provided by the invention can comprehensively improve the high-temperature rutting resistance and low-temperature crack resistance of an asphaltic mixture and has remarkable economic benefits and social benefits.

Description

technical field [0001] The invention belongs to the technical field of asphalt pavement materials, and in particular relates to a comprehensive modifier of waste high polymer-based asphalt mixture and its preparation method and application. Background technique [0002] In order to adapt to the working conditions of large traffic volume, heavy-duty traffic and extreme weather conditions in our country, it is necessary to comprehensively improve the performance of asphalt pavement materials. At present, the usual method is to modify asphalt or asphalt mixture. Asphalt modification requires special modification equipment, and the process is more complicated and the investment is higher. The modification of asphalt mixture is generally to add a modifier to the heated mineral material or asphalt mixture, and to improve the performance of the asphalt mixture through physical and chemical interaction with asphalt and aggregate through heating and stirring. Since the process and e...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L95/00C08L23/06C08L23/08C08L21/00C08L53/02C08L97/02C08K7/10C08K3/04C04B26/26
Inventor 曹卫东刘树堂王忠东陈惠民朱小金房晓东
Owner SHANDONG UNIV
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