Anti-rutting asphalt mixture and preparation method therefor

An asphalt mixture, anti-rutting technology, applied in the field of asphalt mixture, can solve the problems of low rolling temperature, pollution of the environment, high energy consumption, etc., to enhance anti-rutting ability, reduce temperature shrinkage cracks, and improve high-temperature anti-rutting performance Effect

Inactive Publication Date: 2018-10-16
CHINA PETROLEUM & CHEM CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The object of the present invention is to provide a kind of anti-rutting asphalt mixture and its preparation method. The mixing, paving and rolling temperature of the anti-rutting asphalt mixture can overcome the problems of the prior art such as environmental pollution, high energy consumption, and aging of asphalt. At the same time, ensure that the performance of the mixture is not affected, and improve the anti-rutting ability of the mixture

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Heat 48 parts of Shengli 70# heavy-duty asphalt to a molten state, add 0.8 parts of chlorinated paraffin, 4 parts of polyethylene, and 6 parts of stearic acid at a constant temperature of 165°C and stir for 15 minutes, then cool the mixture to 135°C and 950 parts of mineral material heated to 145°C was put into the mixing tank and mixed for 20 seconds, and then 4 parts of polypropylene fiber was added to continue mixing for 30 seconds to prepare anti-rutting asphalt mixture.

Embodiment 2

[0024] Heat 48 parts of Shengli 70# heavy-duty asphalt to a molten state, add 0.6 parts of chlorinated paraffin, 6 parts of polyethylene, and 7 parts of stearic acid at a constant temperature of 155°C and stir for 15 minutes, then cool the mixture to 135°C and 950 parts of mineral materials heated to 145°C are put into the mixing tank and mixed for 20 seconds, then 2 parts of polypropylene fiber and 1 part of lignin fiber are added, and the mixing is continued for 20 seconds to prepare a warm mix asphalt mixture.

Embodiment 3

[0026] Heat 48 parts of Shengli 70# heavy-duty asphalt to a molten state, add 0.4 parts of chlorinated paraffin, 1 part of polyethylene, and 3 parts of stearic acid at a constant temperature of 150°C and stir for 15 minutes, then cool the mixture to 135°C and 950 parts of mineral materials heated to 145°C are put into the mixing tank and mixed for 20 seconds, and then 0.5 parts of lignin fiber are added to continue mixing for 20 seconds to prepare a warm mix asphalt mixture.

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PUM

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Abstract

The invention belongs to the technical field of asphalt mixtures and particularly relates to an anti-rutting asphalt mixture and a preparation method therefor. The anti-rutting asphalt mixture is prepared from the following ingredients in parts by mass: 950 parts of mineral aggregates, 48 parts of matrix asphalt, 0.1-0.8 part of chlorinated paraffin, 1-10 parts of anti-rutting modifier A, 0.1-10 parts of anti-rutting modifier B and 1-8 parts of fatty acids. According to the anti-rutting asphalt mixture, the blending, spreading and rolling temperatures are low, the problems such as environmental pollution, high energy consumption and aging and decaying of asphalt in the prior art can be solved, meanwhile, the properties of the mixture can be free of influence, and the rut resistance of themixture is improved.

Description

Technical field [0001] The invention belongs to the technical field of asphalt mixtures, and specifically relates to an anti-rutting asphalt mixture and a preparation method thereof. Background technique [0002] Asphalt concrete surface layer has gradually replaced cement concrete pavement due to its advantages such as comfortable driving, good wear resistance, low noise, simple maintenance and repair, and has become one of the main forms of highway pavement in my country and developed countries. [0003] Traditional asphalt mixtures have defects such as high mixing and paving temperatures, high emissions of asphalt smoke and harmful gases during construction, and easy aging of asphalt mixtures, which have caused many ecological and environmental problems. [0004] However, the emulsified asphalt, liquid asphalt and other technologies used in the prior art to reduce the mixing construction temperature cannot fundamentally solve the above-mentioned problems of asphalt, and will also ...

Claims

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Application Information

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IPC IPC(8): C04B26/26
CPCC04B26/26C04B2111/0075C04B14/02C04B14/06C04B18/141C04B24/36C04B24/085C04B24/2611C04B16/0633C04B18/26
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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