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Asphalt regenerant with slow-release function and preparation method thereof

An asphalt regenerant and functional technology, which is applied in the field of asphalt regenerant with slow release function and its preparation, can solve the problems of poor durability, variety of asphalt rejuvenating agents, and inability to guarantee the effect of modified asphalt, etc., so as to save new asphalt. Dosage, adjust system viscosity, enhance the effect of anti-peeling performance

Active Publication Date: 2019-12-10
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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  • Asphalt regenerant with slow-release function and preparation method thereof
  • Asphalt regenerant with slow-release function and preparation method thereof
  • Asphalt regenerant with slow-release function and preparation method thereof

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Embodiment 1

[0024] The composition of the asphalt rejuvenator with slow-release function includes 50 parts by mass of modified base oil, 30 parts by mass of base asphalt, 20 parts by mass of added oil, and 5 parts by mass of capsule modifier.

[0025] 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 capsule modifier includes a capsule wall and a capsule core, and is prepared by wrapping the capsule core with the capsule wall. The capsule wall is made of petroleum resin ...

Embodiment 2

[0030] The composition of the slow-release asphalt regeneration agent includes 55 parts by mass of modified base oil, 25 parts by mass of base asphalt, 25 parts by mass of added oil, and 6 parts by mass of capsule modifier.

[0031] 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 capsule modifier includes a capsule wall and a capsule core, and is prepared by wrapping the capsule core with the capsule wall. The ...

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Abstract

The invention discloses an asphalt regenerant with a slow-release function and a preparation method thereof. The regenerant is prepared from the components in parts by mass: 30 to 80 parts of modifiedbase oil, 30 to 50 parts of matrix asphalt, 10 to 30 parts of added oil, and 1 to 10 parts of a capsule modifier. The regenerant has many advantages that viscosity of new and old asphalt and mixturesystems can be adjusted, the anti-stripping performance of the systems can be improved, long-lasting regeneration of slow-release lightweight components is realized, the using amount of the new asphalt is saved, and compatibility of the new and old asphalt is improved by active sites; moreover, reuse of waste can be realized by the regenerant, and the problems of single performance and poor long-term regeneration effect of traditional regenerant are further overcome; and in addition, the preparation technology of the regenerant is simple, and industrial production is convenient.

Description

technical field [0001] The invention belongs to the technical field of asphalt concrete regeneration, and in particular relates to an asphalt regeneration agent with a slow-release function 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 layin...

Claims

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Application Information

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IPC IPC(8): C08L91/00C08L95/00
CPCC08L91/00C08L2205/035C08L2205/025C08L95/00
Inventor 王威畅润田殷传峰周亚军刘力源高学凯裴强樊长昕游晓英
Owner 山西交通科学研究院集团有限公司
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