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Road waste asphalt regenerant and preparation method

A technology of waste asphalt and regenerant, which is applied in the field of waste recycling and environmental protection, can solve the problems of asphalt road performance degradation, etc., and achieve the effects of increasing ductility, saving land resources, and low price

Inactive Publication Date: 2010-01-27
BEIJING UNIV OF CHEM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Asphalt will age and deteriorate due to the effects of air, temperature and sunlight during use. The reason is that its internal structure changes, and a series of volatilization, oxidation, polymerization, etc. occur, which changes the properties of asphalt, resulting in asphalt road performance. deterioration

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0016] The ingredients of the above components are weighed according to the ratio of waste engine oil: epoxy resin: polyacrylate = 1:1:1.

[0017] First, take a certain amount of waste engine oil at room temperature, add epoxy resin in proportion and stir, heat to 140°C-160°C, continue stirring, then add polyacrylate in proportion, heat to 140°C-160°C, fully Stir evenly to obtain the regeneration agent.

[0018] Then, mix a certain amount of road aged asphalt with the road waste asphalt rejuvenator of the present invention, the percentage of the regenerant is 10%-25%, stir and mix evenly under the condition of 140°C-160°C, pour the resulting regenerated asphalt Put it into the ductility mold, cool it at room temperature for half an hour, and take a water bath at 15°C for half an hour. Then, scrape the surface of the mold and put it in a water bath at 15°C for one hour to test the ductility of the recycled asphalt. The regeneration effect test index of the regeneration agent i...

example 2

[0022] The ingredients of the above components are weighed according to the ratio of waste engine oil: epoxy resin: polyacrylate = 1:1:1.

[0023] First, take a certain amount of waste engine oil at room temperature, add epoxy resin in proportion and stir, heat to 140°C-160°C, continue stirring, then add polyacrylate in proportion, heat to 140°C-160°C, fully Stir evenly to obtain the regeneration agent.

[0024] Then, mix a certain amount of road aged asphalt with the road waste asphalt rejuvenator of the present invention, the percentage of the regenerant is 10%-25%, stir and mix evenly under the condition of 140°C-160°C, pour the resulting regenerated asphalt Put the three major indicators (ductility, penetration, softening point) into the mold, cool the ductility mold at room temperature for half an hour, put it in a water bath at 10°C for half an hour, then scrape the surface of the mold, and put it in a water bath at 15°C for one hour before testing Ductility of recycled...

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Abstract

The invention discloses a road waste asphalt regenerant and a preparation method. The regenerant comprises base oil, a plasticizer and a reinforcer, wherein the ratio of the three components is 1:1:1. The base oil is waste engine oil, the plasticizer is 6101 epoxy resin and the reinforcer is polyacrylic ester which is prepared from polymethyl acrylate, polyethyl acrylate and polybutyl acrylate in the ratio of 1:1:1. The preparation method comprises the following steps: mixing certain amount of road ageing asphalt and 10-25 percent of the road waste asphalt regenerant together; stirring and evenly mixing under the condition of 140 to 160 DEG C to obtain the road regenerated asphalt. The regenerant is used to directly save a large amount of sandstones and asphalt resources, and effectively save a large amount of land resources occupied by exploring the sandstones and waste materials at the same time; and a main raw material of the road waste asphalt regenerant is the waste engine oil which has low prices, so the road waste asphalt regenerant has certain commercial value.

Description

technical field [0001] The invention belongs to the field of waste reuse in the field of environmental protection, and in particular relates to a waste asphalt regeneration agent capable of restoring the performance of road waste asphalt. Background technique [0002] In recent years, with people's attention to environmental protection and social benefits, asphalt pavement waste recycling technology has attracted more and more attention, and has become an important practical technology to be further developed in highway engineering construction. my country's highway construction has great significance. The waste asphalt mixture cannot be used in other projects, which causes three major problems, one is to pile up the site, the other is to pollute the environment, and the third is to waste a large amount of non-renewable resources. If it can be recycled and reused, it can not only protect the environment but also save natural resources. The waste asphalt mixture is only redu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J11/04C08L95/00C08L63/00C08L33/08
CPCY02P20/143Y02W30/62
Inventor 祁欣赵晶晶陈娟
Owner BEIJING UNIV OF CHEM TECH
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