Slow-release asphalt modified regenerant and preparation method thereof

An asphalt modification and rejuvenating agent technology, applied in building components, building thermal insulation materials, buildings, etc., can solve the problems of poor durability, inability to guarantee the effect of modified asphalt, and various types of asphalt rejuvenating agents, so as to enhance the anti-stripping resistance. performance, savings, and the effect of slowing down the aging process

Active Publication Date: 2020-01-10
山西交通科学研究院集团有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are related patents at home and abroad that use waste vegetable oil to regenerate or soften asphalt, but only using waste oil to regenerate asphalt will have problems of poor durability and the effect of modified asphalt cannot be guaranteed
[0004] At present, there are various types of asphalt rejuvenators on the market, most of which are composed of low-viscosity light oil components such as waste engine oil and waste lubricating oil, supplemented by modifiers and anti-aging agents. There are many problems in

Method used

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  • Slow-release asphalt modified regenerant and preparation method thereof
  • Slow-release asphalt modified regenerant and preparation method thereof
  • Slow-release asphalt modified regenerant and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0026] The slow-release asphalt modified rejuvenator consists of: 50 parts by mass of modified base oil, 30 parts by mass of base asphalt, 20 parts by mass of added oil, 3 parts by mass of plasticizer, 2 parts by mass of anti-aging agent, 2 parts by mass of modified agent, 5 parts by mass of capsule modifier.

[0027] Wherein the modified base oil consists of 95 parts by mass of waste oil and 5 parts by mass of modified additives. First, the waste oil is filtered to remove slag, flash dehydrated and sterilized. The modified additive is SPI and MD with a mass ratio of 2:3 as the wall material, and coated with sulfuric anhydride, vinylpyrrolidone, and 2-tert-butyl-p-cresol (the mass ratio of the three is 2:1:1) as Microcapsule A of the core material. Base asphalt is 110# asphalt. The added oil is composed of distillate oil and aromatic oil mixed uniformly at a mass ratio of 2:3. The plasticizer is epoxy soybean oil, and the anti-aging agent is tetrakis[β-(3,5-di-tert-butyl-4...

Embodiment 2

[0033] The slow-release asphalt modified rejuvenator consists of 55 parts by mass of modified base oil, 25 parts by mass of base asphalt, 25 parts by mass of added oil, 3 parts by mass of plasticizer, 2 parts by mass of anti-aging agent, and 2 parts by mass of modifier , 6 parts by mass of capsule modifier.

[0034] Wherein the modified base oil consists of 96 parts by mass of waste oil and 4 parts by mass of modified additives. First, the waste oil is filtered to remove slag, flash dehydrated and sterilized. The modified additive is microcapsule A with SPI and MD at a mass ratio of 1:1 as the wall material and coated with sulfuric anhydride, p-quaterphenyl, and phenol (the mass ratio of the three is 2:1:2) as the core material. The base asphalt is a combination of 90# asphalt and vegetable asphalt with a mass ratio of 7:3. The added oil is composed of extracted oil and aromatic oil mixed uniformly at a mass ratio of 2:3. The plasticizer is epoxy butyl furfurate, the antiag...

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Abstract

The invention discloses a slow-release asphalt modified regenerant and a preparation method thereof. The regenerant comprises the following components in parts by mass: 30-80 parts of modified base oil, 30-50 parts of matrix asphalt, 10-30 parts of an added oil, 1-5 parts of a plasticizer, 1-5 parts of an anti-aging agent, 1-5 parts of a modifier and 1-10 parts of a capsule modifier. The regenerant provided by the invention is capable of adjusting the viscosity of new and old asphalt and mixture systems, enhancing the anti-stripping performance of systems, slowly releasing light components, realizing lasting regeneration, saving the dosage of new asphalt, increasing the compatibility of the new and old asphalt through active points, improving the performance of the asphalt, resisting agingand the like. In addition, the regenerant provided by the invention can realize waste recycling, and solve the problems of single performance and poor long-term regeneration effect of traditional regenerants. In addition, the regenerant is simple in preparation process and convenient for industrial production.

Description

technical field [0001] The invention belongs to the technical field of asphalt concrete regeneration, in particular to a slow-release asphalt modified regeneration agent and a preparation method thereof. Background technique [0002] With the arrival of the large-scale repair period of asphalt roads in my country, facing the dual pressures of resources and the environment, how to reuse aging asphalt and turn waste into treasure has become a major technical problem in the road field. At present, about 2.2 million tons of old asphalt mixtures are produced by highway maintenance in my country every year. If the cost of recycled materials can be saved by 350 million yuan, this figure will be 1.5 billion yuan by 2015. If the medium and low By reusing grade road maintenance waste, the cost of actual materials can be saved by nearly 12 billion yuan per year. If an asphalt regenerant with excellent performance can be developed, it is very important for road laying cost control, envi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L91/00C08L95/00C08L83/04C08L5/04C08K9/10C08K5/13C08K5/134C08K13/06
CPCC08L91/00C08L95/00C08K2201/014C08L2205/035C08L2201/08C08L83/04C08L5/04C08K9/10C08K5/13C08K5/1345C08K13/06
Inventor 王威畅润田刘力源周亚军高学凯殷传峰裴强樊长昕游晓英
Owner 山西交通科学研究院集团有限公司
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