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Modified asphalt and method for making same

A technology for modifying asphalt and bitumen, which is applied to building components, building insulation materials, buildings, etc., can solve problems such as uneconomical, energy-consuming, and heavy environmental pollution, and achieve the effects of low production cost, easy operation, and simple method.

Inactive Publication Date: 2007-05-30
四川盖瑞新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

That is to say, the conventional method of improving the adhesion performance of waste rubber particles is to use desulfurization to achieve the goal, but the desulfurization process is complicated, the environmental pollution is serious, and it also consumes energy, which is very uneconomical.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] A kind of modified asphalt is configured according to the following components by weight: asphalt: activated rubber powder is 70:30, wherein the activated rubber powder includes the following components by weight: waste tire powder: tetramethyldecynediol is 100:3;

[0023] The method for preparing above-mentioned modified asphalt is:

[0024] (1) At normal temperature, the activator tetramethyldecynediol is mixed into the waste tire powder in the weight ratio of waste tire powder: tetramethyldecynediol is 100:3, and the activated rubber powder is obtained by stirring and wetting;

[0025] (2) by asphalt: activated rubber powder is 70: 30 weight ratio will add asphalt and activated rubber powder in the reactor and fully stir;

[0026] (3) Raise the reaction temperature to 170-180°C, and react at a constant temperature for 0.5 hours;

[0027] (4) After the reaction is completed, cool naturally to room temperature to obtain the modified asphalt.

Embodiment 2

[0029] A kind of modified asphalt is configured according to the following components by weight: asphalt: activation

[0030] The rubber powder is 85:15, wherein the activated rubber powder comprises the following components in weight ratio: waste tire powder: tetramethyldecynediol is 100:10;

[0031] The method for preparing above-mentioned modified asphalt is:

[0032] (1) At normal temperature, the activator tetramethyldecynediol is mixed into the waste tire powder in the weight ratio of waste tire powder: tetramethyldecynediol is 100:10, and the activated rubber powder is obtained by stirring and wetting;

[0033] (2) by asphalt: activated rubber powder is 85: 15 weight ratio will add asphalt and activated rubber powder in the reaction kettle and fully stir;

[0034] (3) Raise the reaction temperature to 170-180° C., and react at constant temperature for 1 hour;

[0035] (4) After the reaction is completed, cool naturally to room temperature to obtain the modified asphal...

Embodiment 3

[0037] A kind of modified asphalt is configured according to the following components by weight: asphalt: activated rubber powder is 83:17, wherein the activated rubber powder includes the following components by weight: waste tire powder: tetramethyldecynediol 100:5;

[0038] The method for preparing above-mentioned modified asphalt is:

[0039] (1) At normal temperature, the activator tetramethyldecynediol is mixed into the waste tire powder in the weight ratio of waste tire powder: tetramethyldecynediol is 100:5, and the activated rubber powder is obtained by stirring and wetting;

[0040] (2) by asphalt: activated rubber powder is 83: 17 weight ratio will add asphalt and activated rubber powder in the reactor and fully stir;

[0041] (3) Raise the reaction temperature to 170-180° C., and react at constant temperature for 1 hour;

[0042] (4) After the reaction is completed, cool naturally to room temperature to obtain the modified asphalt.

[0043] The characteristics o...

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PUM

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Abstract

The invention discloses a modified tar and making method, which is characterized by the following: allocating tar and activated rubber powder with weight rate at 70-85:30-15; doping activator tetramethyl alkynediols into waste tyre powder; blending; wetting to obtain activated rubber powder; adding tar and activated rubber powder into autoclave according to proportion; stirring completely; heating to 170-180 deg.c; insulating 0.5-1h; cooling to indoor temperature naturally to obtain modified tar. The invention avoids tar from separating, which doesn't desulfrize in the whole course.

Description

technical field [0001] The invention relates to a modified asphalt composition and a preparation method thereof. The modified asphalt composition is especially suitable for high-grade highway pavements and airport runways. Background technique [0002] Asphalt is an indispensable material for roads or highways. It has good cohesiveness, impermeability, insulation and chemical stability. Phenomena such as rutting and pan bending will occur, and low temperature will easily cause pavement cracking such as shrinkage cracks, which will affect the usability and durability of the pavement. [0003] The quality of road asphalt is often evaluated by the following indicators: [0004] Elongation: mainly used to reflect the low temperature performance of asphalt. The elongation of asphalt is the length at which the two ends of the standard specimen are stretched to break at the specified tensile speed and temperature. The elongation is the fracture length when ...

Claims

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Application Information

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IPC IPC(8): C08L95/00C08K5/05
Inventor 周祥任胜元
Owner 四川盖瑞新材料科技有限公司
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