Permeable type asphalt regenerant and preparation method thereof

An asphalt rejuvenator and permeable technology, which is applied in the field of resource and environmental chemistry, can solve the problems of limited improvement of road performance of waste asphalt mixture, poor permeability of regenerant, etc., achieve smooth microscopic appearance, improve permeability, Weaken the effect of hindrance

Inactive Publication Date: 2018-01-26
周荣
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a permeable asphalt rejuvenator and its preparation method in view of the poor penetration performance of the regenerant and the limited improvement effect on the road performance of waste asphalt mixture

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0023] 17. Take 600g of waste engine oil, let it stand for 1h, and then filter to obtain the filtrate. Add 20g of attapulgite and 40g of activated clay to the filtrate, stir at 300r / min for 1h, then add 2g of sodium carbonate, continue to stir for 30min, then let it stand for 3h, and filter To obtain pretreated waste engine oil, get 200g pretreated waste engine oil, 150g epoxidized soybean oil, and 150g dibutyl phthalate, put them into a high-shear dispersing emulsifier, and shear and stir at 6000r / min for 10min to obtain regeneration regulator Plasticizing oil, take 250g of heavy oil, heat and stir for 1 hour in a constant temperature oil bath at 120°C, take 600g of regenerated and adjusted plasticizing oil, heat it to 130°C, then add the heated heavy oil into the regenerated and adjusted plasticizing oil at 200r / Stir for 30 minutes, cool to 120°C, add 30g surfactant, 10g anti-aging agent, 10g high-temperature stabilizer, keep stirring at 800r / min for 30min, and obtain a pene...

example 2

[0025] 18. Take 800g of waste engine oil, let it stand for 1 hour, and then filter to obtain the filtrate. Add 25g of attapulgite and 50g of activated clay to the filtrate, stir at 350r / min for 1 hour, then add 2g of sodium carbonate, continue to stir for 35 minutes, let it stand for 4 hours, and filter To obtain pretreated waste engine oil, get 300g pretreated waste engine oil, 250g epoxidized soybean oil, and 200g dibutyl phthalate, put them into a high-shear dispersing emulsifier, and shear and stir at 7000r / min for 12min to obtain regeneration regulator Plasticizing oil, take 350g of heavy oil, heat and stir for 1 hour in a constant temperature oil bath at 135°C, take 700g of regenerated and adjusted plasticizing oil, heat it to 145°C, and then add the heated heavy oil into the regenerated and adjusted plasticizing oil at 250r / Stir for 35 minutes, cool to 130°C, add 40g surfactant, 15g anti-aging agent, 15g high-temperature stabilizer, keep stirring at 900r / min for 35 minu...

example 3

[0027] 19. Take 1000g of waste engine oil, let it stand for 2 hours, and then filter to obtain the filtrate. Add 30g of attapulgite and 60g of activated clay to the filtrate, stir at 400r / min for 2 hours, then add 3g of sodium carbonate, continue to stir for 40 minutes, let it stand for 5 hours, and filter To obtain pretreated waste engine oil, get 400g pretreated waste engine oil, 300g epoxidized soybean oil, and 300g dibutyl phthalate, put them into a high-shear dispersing emulsifier, and shear and stir at 8000r / min for 15min to obtain a regeneration regulator For plasticizing oil, take 450g of heavy oil, heat and stir for 2 hours in a constant temperature oil bath at 150°C, take 800g of regenerated and adjusted plasticizing oil, heat it to 160°C, then add the heated heavy oil into the regenerated and adjusted plasticizing oil, at a rate of 300r / Stir for 40 minutes, cool to 140°C, add 50g surfactant, 20g anti-aging agent, 20g high-temperature stabilizer, and keep stirring at...

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Abstract

The invention relates to a permeable type asphalt regenerant and a preparation method thereof, belonging to the technical field of resource environmental chemistry. By virtue of a surfactant, aged asphalt can be rapidly moisturized through the regenerant, the blending of basic components in the aged asphalt can be realized through higher content of aromatics in the regenerant, oil in waste oil hasbetter permeability and lubrication to the aged asphalt, thus being beneficial to interaction of macromolecules and further increasing the plasticity of the asphalt; the polar groups in epoxidized soybean oil and dibutyl phthalate have chemical reaction with asphaltene to weaken the strong attraction between asphaltene molecules, so that the agglomerated asphaltene in the aged asphalt is evenly dissolved and dispersed in the asphalt colloid system again, and a spatial network structure formed due to agglomeration of asphaltene is destructed to weaken the barrier of the spatial network structure on the permeation of the regenerant, so that the permeation capability of the regenerant is improved, and the colloid structure and performances of the aged asphalt can be effectively restored.

Description

technical field [0001] The invention relates to a permeable asphalt regenerant and a preparation method thereof, belonging to the technical field of resource and environmental chemistry. Background technique [0002] During the use of asphalt pavement, due to the combination of natural factors such as heat, oxygen, ultraviolet light, rain erosion and traffic load, it is easy to produce various diseases such as cracks, looseness, potholes and vehicle transportation, which makes the asphalt pavement The road performance deteriorates, which seriously shortens the service life of asphalt pavement, requiring large-scale maintenance and repair before the designed service life. Usually, the design service life of asphalt pavement is 12 to 15 years, but in fact most After the asphalt pavement is completed and opened to traffic, it will need to be overhauled due to the deterioration of its road performance caused by the above-mentioned diseases in as short as 2 to 3 years and as long...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L95/00C08L91/00C08K5/12C08K5/01C08K5/3475
Inventor 周荣王之霖陈倩
Owner 周荣
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