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Road asphalt modifier and modified road asphalt, a preparation method thereof and asphalt mixture

A technology of road asphalt and modifier, which is applied in the direction of building insulation materials, building components, buildings, etc. It can solve the problems of poor stability of asphalt pavement and poor low-temperature ductility of modified road asphalt, so as to reduce costs and solve high value-added utilization and the effect of exploiting the problem at scale

Active Publication Date: 2016-10-19
CHNA ENERGY INVESTMENT CORP LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] The purpose of the present invention is to provide a road asphalt modifier and improved Permanent road asphalt and its preparation method and asphalt mixture

Method used

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preparation example Construction

[0032] Although the road asphalt modifier obtained by uniformly mixing the above components can have better performance than the prior art, preferably, according to the second aspect of the present invention, a road asphalt modifier provided by the present invention is provided The preparation method of the agent, the method includes: (1) heating the raw material containing the direct coal liquefaction residue in the presence of an oxidant, the heating temperature is 180-350°C, and the heating time is 5-90min; (2) heavy petroleum The oil and the polymer are stirred at 30-200°C; (3) the modified coal direct liquefaction residue obtained in step (1) is mixed with the mixture obtained in step (2), stirred evenly and cooled to obtain a road asphalt modifier.

[0033] Relative to 100 parts by weight of the coal direct liquefaction residue, the content of heavy petroleum oil is 30-150 parts by weight, preferably, the content of heavy petroleum oil is 40-145 parts by weight, more prefera...

Embodiment 1

[0058] This embodiment is used to illustrate the road asphalt modifier and modified road asphalt provided by the present invention and the preparation method thereof.

[0059] Road asphalt modifier:

[0060] 1) After mixing 100 parts by weight of coal direct liquefaction residue with 5 parts by weight of zinc oxide, heating in the presence of air at 200°C for 70 minutes, and then cooling to obtain modified coal direct liquefaction residue;

[0061] 2) Combine 90 parts by weight of catalytic cracking oil slurry (produced by Yanshan Petrochemical, ρ 20℃ =0.985g / ml, the content greater than the distillation range of 350°C is 76% by weight, the freezing point is 10.2°C, and the kinematic viscosity at 100°C is 14.78mm 2 ·S -1 ) And 20 parts by weight of SBR (SBR1712, produced by Fujian Petrochemical), stirred and mixed at 60°C and 50 rpm for 2 hours to obtain a mixture;

[0062] 3) The above-mentioned modified coal direct liquefaction residue is crushed and contacted with the above-mentione...

Embodiment 2

[0068] This embodiment is used to illustrate the road asphalt modifier and modified road asphalt provided by the present invention and the preparation method thereof.

[0069] Road asphalt modifier:

[0070] 1) After mixing 100 parts by weight of coal direct liquefaction residue with 5 parts by weight of zinc stearate, heating at 180°C for 90 minutes in the presence of oxygen, and then cooling to obtain modified coal direct liquefaction residue;

[0071] 2) Combine 50 parts by weight of FCC slurry (produced by Yanshan Petrochemical, ρ 20℃ =0.985g / ml, the content greater than the distillation range of 350°C is 76% by weight, the freezing point is 10.2°C, and the kinematic viscosity at 100°C is 14.78mm 2 ·S -1 ) And 20 parts by weight of SBR (SBR1712 produced by Fujian Petrochemical) were stirred and mixed at 50° C. and 800 rpm for 3 hours to obtain a mixture;

[0072] 3) The above-mentioned modified coal direct liquefaction residue is crushed and contacted with the above-mentioned mixtu...

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Abstract

The invention discloses a road asphalt modifier and modified road asphalt, a preparation method thereof and an asphalt mixture. The road asphalt modifier contains modified coal direct liquefaction residue, petroleum heavy oil component and a polymer. The modified coal direct liquefaction residue is obtained by the following method: heating a raw material containing direct coal liquefaction residue in the presence of an oxidant at the temperature of 180-350 DEG C for 5-90 min, wherein relative to 100 parts by weight of direct coal liquefaction residue, the content of petroleum heavy oil component is 30-150 parts by weight, and the content of polymer is 10-70 parts by weight. The road asphalt modifier can improve the low temperature ductility of the road asphalt, improve the softening point, and improve the stability of the asphalt mixture.

Description

Technical field [0001] The invention relates to a road asphalt modifier containing modified coal direct liquefaction residue, a modified road asphalt prepared from the road asphalt modifier, and a preparation method thereof, mixed with an asphalt containing the modified road asphalt material. Background technique [0002] How to efficiently and rationally use coal direct liquefaction residues is a bottleneck restricting the development of current coal direct liquefaction technology. The development of economic and reasonable utilization technology of coal direct liquefaction residues can not only make full use of resources, avoid the waste of valuable resources, and reduce the impact on the environment. It can effectively improve the economics of direct coal liquefaction technology and promote the development of direct coal liquefaction technology. [0003] With the development of my country's highway transportation industry, especially high-grade highways, the traffic mileage has...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L95/00C08L91/00C08L53/02C08L9/06C08L23/16C08L9/02C08K11/00C08K3/22C08K5/098C04B26/26
Inventor 张胜振宫晓颐赖世燿盛英刘均庆郑冬芳
Owner CHNA ENERGY INVESTMENT CORP LTD
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