Preventive maintenance material for asphalt pavement

A technology of preventive maintenance and asphalt pavement, applied in the direction of climate sustainability, sustainable waste treatment, solid waste management, etc., can solve the problems of reducing the anti-skid ability of the surface layer of asphalt pavement, weak anti-skid ability, complex process, etc. Achieve the effect of reducing UV aging, improving anti-skid ability, and simple construction method

Inactive Publication Date: 2011-08-17
湖北环宇化工有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In addition, for the maintenance methods with weak anti-skid ability on the surface of asphalt pavement, the main methods currently used are micro-surfacing or thin-layer overlay, which involve complex processes and also have the problem of excessive noise
In addition, the relatively simple preventive maintenance methods such as fog seal layer commonly used at present will reduce the skid resistance of the asphalt pavement surface layer.

Method used

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  • Preventive maintenance material for asphalt pavement
  • Preventive maintenance material for asphalt pavement
  • Preventive maintenance material for asphalt pavement

Examples

Experimental program
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Effect test

Embodiment 1

[0024] A preventive maintenance material for asphalt pavement, which is composed of organosilicon resin solution, silane coupling agent, fine stone chips, and waste rubber powder raw materials. The weight percentage of each raw material is: organosilicon resin solution 40%, silane coupling agent 5%, fine stone chips 50%, waste rubber powder 5% (without adding UV absorbers).

[0025] The organosilicon resin solution is an MQ organosilicon resin solution, the synthesis method of the organosilicon resin is a silicate method, and the concentration of the MQ organosilicon resin solution is 20-50 wt%. The silane coupling agent is γ-aminopropyltriethoxysilane. The fine stone chips are basalt, and the size range of basalt is 0.3mm to 1.18mm. The size range of waste rubber powder is 0.3mm~1.18mm.

[0026] The construction (preparation) of a preventive maintenance material for asphalt pavement: 1) Stir the above-mentioned organosilicon resin solution, ultraviolet absorber, and silane ...

Embodiment 2

[0028] A preventive maintenance material for asphalt pavement, which is composed of organic silicon resin solution, ultraviolet absorber, silane coupling agent, fine stone chips, and waste rubber powder raw materials. The weight percentage of each raw material is: organic silicon resin solution 40%, UV absorber 1%, silane coupling agent 5%, fine stone chips 50%, waste rubber powder 4%.

[0029] The organic silicon resin solution is an MQ organic silicon resin solution, the synthetic method of the organic silicon resin is a silicate method, and the concentration of the MQ organic silicon resin solution is 20-50 wt%. The ultraviolet absorber is benzophenones (UV-531). The silane coupling agent is γ-aminopropyltriethoxysilane. The fine stone chips are basalt, and the size range of basalt is 0.3mm to 1.18mm. The size range of waste rubber powder is 0.3mm~1.18mm.

[0030] The construction (preparation) of a preventive maintenance material for asphalt pavement: 1) Stir the above-...

Embodiment 3

[0032] A preventive maintenance material for asphalt pavement, which is composed of organic silicon resin solution, ultraviolet absorber, silane coupling agent, fine stone chips, and waste rubber powder raw materials. The weight percentage of each raw material is: organic silicon resin solution 50%, UV absorber 2%, silane coupling agent 5%, fine stone chips 39%, waste rubber powder 4%.

[0033] The organic silicon resin solution is an MQ organic silicon resin solution, the synthetic method of the organic silicon resin is a silicate method, and the concentration of the MQ organic silicon resin solution is 20-50 wt%. The UV absorber is benzotriazoles (UV-326). The silane coupling agent is γ-glycidyl etheroxypropyltrimethoxysilane. The fine stone chips are steel slag, and the size range of steel slag is 0.3mm~1.18mm. The size range of waste rubber powder is 0.3mm~1.18mm.

[0034]The construction (preparation) of a preventive maintenance material for asphalt pavement: 1) Stir t...

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Abstract

The invention belongs to the technical field of road maintenance, and particularly relates to a preventive maintenance material for an asphalt pavement. The preventive maintenance material for an asphalt pavement is characterized by mainly comprising the following raw materials in percentage by weight: 30-60% of organic silicon resin, 0-2% of ultraviolet absorbent, 3-5% of silane coupling agent, 30-50% of fine stone dust and 4-20% of waste rubber powder. The maintenance material can enhance the ultraviolet aging resistance and skid resistance of the asphalt pavement.

Description

technical field [0001] The invention belongs to the technical field of road maintenance, and in particular relates to a preventive maintenance material for asphalt pavement. Background technique [0002] At present, my country's highway construction has made great achievements. By the end of 2009, the total mileage of my country's highways has reached 65,000 kilometers, of which more than 90% are asphalt roads. With the gradual improvement of my country's expressway network, the focus of my country's expressways has gradually shifted to maintenance. [0003] Asphalt pavement is very susceptible to aging due to the influence of ultraviolet light, especially in areas with high ultraviolet light intensity. The radiation of ultraviolet light can easily cause changes in the composition and chemical structure of asphalt, and the performance degradation of the asphalt pavement surface mixture related to aging, resulting in cracks, spalling, potholes and other diseases on the aspha...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B26/10C04B18/22
CPCY02W30/91
Inventor 杨世明吴少鹏杨红波林俊涛袁发强陈美祝庞凌万路
Owner 湖北环宇化工有限公司
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