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Asphalt pavement regeneration preventive maintenance material as well as preparation method and application thereof

A technology of preventive maintenance and asphalt pavement, which is applied to asphalt coatings, roads, roads, etc. It can solve the problems of lack of sealing layer, weak adhesion of asphalt pavement, and reduce the anti-skid performance of the pavement, so as to improve the effect of maintenance

Active Publication Date: 2021-05-11
河南省公路工程试验检测中心有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, most of the existing asphalt pavement curing agents are emulsions mainly composed of low-boiling point oil, which improves the regeneration function of asphalt to a certain extent, but there are still the following problems in this type of material: 1. The asphalt curing agent in the emulsion state is not easy to penetrate , the repair effect on the asphalt pavement is not ideal; 2. The low boiling point oil in the emulsified asphalt curing agent still has the problem of slow volatilization, which makes the low boiling point oil penetrated into the aged asphalt lack of sealing layer, thereby accelerating the aging of the recycled asphalt, Shortening the care cycle is time-consuming and laborious; 3. The curing agent after construction smoothes the structural depth of the asphalt surface and reduces the anti-skid performance of the road surface; Conservation

Method used

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  • Asphalt pavement regeneration preventive maintenance material as well as preparation method and application thereof
  • Asphalt pavement regeneration preventive maintenance material as well as preparation method and application thereof
  • Asphalt pavement regeneration preventive maintenance material as well as preparation method and application thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0031] A preventive maintenance material for asphalt pavement regeneration, which is composed of asphalt regeneration agent, asphalt mortar emulsion, and waterproof solidification liquid.

[0032] Among them, the asphalt regeneration agent is made by mixing aromatic hydrocarbon solution and kerosene at a volume ratio of 1:1, and the aromatic hydrocarbon solution is a fraction of coal tar at 280°C to 360°C.

[0033] The asphalt mortar emulsion is composed of 42wt% No. 70 petroleum asphalt, 10wt% epoxy mortar, 28wt% aromatic hydrocarbon solution, 1wt% basalt ore powder, 12wt% water, 5wt% cetyl trimethyl chloride ammonium and 2wt% glycidyl methacrylate, wherein the particle diameters of basalt ore powder and epoxy mortar are all less than 20 μm.

[0034] The preparation process of asphalt mortar emulsion is as follows:

[0035] No. 70 petroleum asphalt and aromatic hydrocarbon solution were sheared and ground at 120°C to form a diluted asphalt liquid. After cooling to room tempe...

Embodiment 2

[0042] A preventive maintenance material for asphalt pavement regeneration, which is composed of asphalt regeneration agent, asphalt mortar emulsion, and waterproof solidification liquid.

[0043] Among them, the asphalt regeneration agent is made by mixing aromatic hydrocarbon solution and kerosene at a volume ratio of 2:1, and the aromatic hydrocarbon solution is a fraction of coal tar at 280°C to 360°C.

[0044] The asphalt mortar emulsion consists of 38wt% No. 70 petroleum asphalt, 10wt% epoxy mortar, 31wt% aromatic hydrocarbon solution, 1wt% basalt ore powder, 15wt% water, 3wt% cetyl trimethyl chloride ammonium and 2wt% triallyl isocyanurate, wherein the particle diameters of basalt ore powder and epoxy mortar are all less than 20 μm.

[0045] The preparation process of asphalt mortar emulsion is as follows:

[0046] No. 70 petroleum asphalt and aromatic hydrocarbon solution were sheared and ground at 150°C to form a diluted asphalt liquid. After cooling to room temperat...

Embodiment 3

[0053] A preventive maintenance material for asphalt pavement regeneration, which is composed of asphalt regeneration agent, asphalt mortar emulsion, and waterproof solidification liquid.

[0054] Among them, the asphalt regeneration agent is made by mixing aromatic hydrocarbon solution and kerosene at a volume ratio of 1:1, and the aromatic hydrocarbon solution is a fraction of coal tar at 280°C to 360°C.

[0055] The asphalt mortar emulsion consists of 45wt% No. 70 petroleum asphalt, 10wt% epoxy mortar, 25wt% aromatic hydrocarbon solution, 0.5wt% basalt ore powder, 14wt% water, 4.5wt% cetyl trimethyl Ammonium chloride and 1wt% glycidyl methacrylate, wherein the particle diameters of basalt ore powder and epoxy mortar are all less than 20 μm.

[0056] The preparation process of asphalt mortar emulsion is as follows:

[0057] No. 70 petroleum asphalt and aromatic hydrocarbon solution were sheared and ground at 120°C to form a diluted asphalt liquid. After cooling to room temp...

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Abstract

The invention belongs to the technical field of road building materials and engineering, and particularly relates to an asphalt pavement regeneration preventive maintenance material as well as a preparation method and application thereof. The asphalt pavement regeneration preventive maintenance material comprises an asphalt regeneration agent, an asphalt mortar emulsion and a waterproof curing liquid. The asphalt mortar emulsion comprises 38-45 wt% of asphalt, 5-10 wt% of epoxy mortar, 25-31 wt% of an aromatic hydrocarbon solution, 0.5-1 wt% of basalt ore powder, 10-15 wt% of an activator, 2-5 wt% of an emulsifier and 1-2 wt% of a stabilizer. The waterproof curing liquid is prepared from 35-40 wt% of quartz sand, 10-17 wt% of tridecafluorooctyltriethoxysilane, 30-35 wt% of epoxy resin, 8-15 wt% of asphalt and 5-10 wt% of a curing agent. The asphalt regeneration agent, the asphalt mortar emulsion and the waterproof curing liquid are sequentially sprayed on an asphalt pavement to form three protective layers on the asphalt pavement, regeneration of aged asphalt can be promoted, aging of the recycled asphalt can be delayed, and the maintenance effect of the asphalt pavement can be comprehensively improved.

Description

technical field [0001] The invention belongs to the field of road building materials and engineering technology, specifically to the technical field of new materials for green road maintenance and functional repair, and more specifically relates to a preventive maintenance material for asphalt pavement regeneration and its preparation method and application. Background technique [0002] Asphalt pavement is widely used due to its good driving performance and high degree of construction mechanization. However, under the influence of climate factors and driving loads, various early-stage diseases appear on asphalt pavement far from reaching the design service life of the road, which affects driving safety. Therefore, in order to keep the pavement in good condition and prolong the service life of the pavement, it is necessary to adopt correct and effective preventive maintenance measures to maintain the asphalt pavement in time. [0003] The traditional pavement maintenance met...

Claims

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Application Information

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IPC IPC(8): C09D195/00C09D7/61C09D7/63C09D163/00C09D5/00E01C11/00
CPCC09D5/00C09D163/00C09D195/00C09D7/61C09D7/63E01C11/005C08L63/00C08K3/36C08K5/19C08L95/00C08K5/5419
Inventor 张幸杰胡金龙孙海娜韩笑张幸伟杨丰恒许旭贺克飞王春玲代海燕杨波杨迪郭崇阳李梦洋孔垂云
Owner 河南省公路工程试验检测中心有限公司
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