Bio-oil-based anti-ageing asphalt regenerant and preparation method thereof

A kind of technology of asphalt rejuvenator and anti-aging agent, which is applied in the direction of building structure, building components, building insulation materials, etc., can solve the problems of asphalt bio-rejuvenating agent aging easily, achieve good anti-aging ability, improve low-temperature performance, and improve the preparation process simple effect

Inactive Publication Date: 2018-09-07
SOUTHEAST UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Technical problem: The technical problem to be solved in this invention is to propose an anti-aging asphalt rejuvenator based on bio-oil and its preparation method for the problem that the existing asphalt biological regenerant is easy to age. The preparation process is simple, and the obtained anti-aging biological The rejuvenator can withstand the short-term aging effects during construction, can effectively reduce the viscosity of waste asphalt, improve ductility, and the obtained bio-regenerated asphalt has anti-aging ability, effectively prolonging the service life of regenerated asphalt pavement

Method used

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  • Bio-oil-based anti-ageing asphalt regenerant and preparation method thereof
  • Bio-oil-based anti-ageing asphalt regenerant and preparation method thereof

Examples

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Effect test

Embodiment 1

[0029] A bio-oil-based anti-aging asphalt regenerant and a preparation method thereof, comprising the steps of:

[0030] 1) Its components and mass percentage content are: bio-oil (epoxy vegetable oil) is 88.5%, dibutyl phthalate is 7.5%, anti-aging agent A (tert-butyl hydroquinone TBHQ) is 3.0% , antiaging agent B (zinc dialkyldithiophosphate ZDDP) is 1.0% (as the biological regeneration agent component and mass percentage content of not adding antiaging agent as contrast: biological oil (epoxy vegetable oil) is 92.5% , dibutyl phthalate is 7.5%);

[0031] 2) Put the bio-oil into the reaction vessel, control the constant temperature, the temperature is about 100°C, stir with the shearer at a low speed for 15-30min, and the stirring speed is about 60r / min, and add the plasticizer collar according to the determined mass percentage while stirring Dibutyl phthalate, initially produced biological regeneration agent;

[0032]3) Put the biological regeneration agent prepared in 2)...

Embodiment 2

[0044] A bio-oil-based anti-aging asphalt regenerant and a preparation method thereof, comprising the steps of:

[0045] 1) Its components and mass percentage content are: bio-oil (epoxy vegetable oil) is 88.0%, dibutyl phthalate is 8.0%, anti-aging agent A (tert-butyl hydroquinone TBHQ) is 2.0% , antiaging agent B (zinc dialkyldithiophosphate ZDDP) is 2.0% (as the biological regeneration agent component and mass percentage content of not adding antiaging agent as contrast: biological oil (epoxy vegetable oil) is 92.0% , dibutyl phthalate is 8.0%);

[0046] 2) Put the bio-oil into the reaction vessel, under constant temperature control, the temperature is about 100°C, and the shearer stirs at a low speed for 15-30 minutes, and the stirring speed is about 60r / min. While stirring, add the plasticizer collar according to the determined mass percentage Dibutyl phthalate, initially produced biological regeneration agent;

[0047] 3) Put the biological regeneration agent prepared ...

Embodiment 3

[0059] A bio-oil-based anti-aging asphalt regenerant and a preparation method thereof, comprising the steps of:

[0060] 1) Its components and mass percent content are: bio-oil (epoxy vegetable oil) is 88.5%, dibutyl phthalate is 6.0%, anti-aging agent A (tert-butyl hydroquinone TBHQ) is 4.0% , antiaging agent B (zinc dialkyldithiophosphate ZDDP) is 1.5% (as the biological regeneration agent component and mass percentage content of not adding antiaging agent as contrast: biological oil (epoxy vegetable oil) is 94.0% , dibutyl phthalate is 6.0%);

[0061] 2) Put the bio-oil into the reaction vessel, under constant temperature control, the temperature is about 100°C, and the shearer stirs at a low speed for 15-30 minutes, and the stirring speed is about 60r / min. While stirring, add the plasticizer collar according to the determined mass percentage Dibutyl phthalate, initially produced biological regeneration agent;

[0062] 3) Put the biological regeneration agent prepared in ...

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Abstract

The invention discloses a bio-oil-based anti-ageing asphalt regenerant and a preparation method thereof. The regenerant comprises, by mass, 85-90% of bio-oil, 5-10% of a plasticizer, 1-5% of an anti-ageing agent and 1-3% of an anti-ageing agent B. The preparation and use method of the regenerant comprises the following steps: (1) adding the bio-oil and the plasticizer into a reaction vessel, and preliminarily preparing a biological regenerant; and (2) adding the biological regenerant prepared in step (1) into a 125 DEG C container, adding the anti-ageing agent A and the anti-ageing agent B according to determined mass percentages, performing stirring by using a stirrer, standing the obtained mixture after the stirring ends, and naturally cooling the mixture to room temperature in order toprepare the anti-ageing biological regenerant. The bio-oil-based anti-ageing asphalt regenerant is used in asphalt plant hot recycling to effectively recover the pavement performances of a waste asphalt mixture and improve the anti-ageing ability of the regenerated asphalt mixture, so resource saving and environment protection are achieved, and the service life of the pavement is prolonged. The regenerant has a good compatibility with asphalt, and can effectively improve the anti-ageing performance of the regenerated asphalt.

Description

technical field [0001] The invention belongs to the field of sustainable recycling of waste in the field of environmental protection, and also relates to the field of regeneration and maintenance of road asphalt materials, in particular to an anti-aging asphalt regeneration agent based on bio-oil and a preparation method. Background technique [0002] As a national infrastructure construction, highway transportation construction carries the foundation and lifeline of national economic development. Asphalt pavement has the characteristics of good road performance, excellent driving comfort, easy maintenance and low noise, etc. It is widely used in my country's highway construction. The road surface reaches more than 90%. However, during the use of asphalt pavement, due to the combined effect of natural factors such as heat, oxygen, ultraviolet light, rain erosion and traffic load, it is prone to various diseases such as cracks, looseness, potholes and rutting, which seriously...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L95/00C08L91/00C08K5/12C08K5/13C08K5/5398
CPCC08K5/12C08K5/13C08K5/5398C08L95/00C08L2201/08C08L91/00
Inventor 杨军蔡星张佳运徐刚姚泽恒
Owner SOUTHEAST UNIV
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