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A kind of aging-resistant penetrating asphalt regenerant and its preparation method

An asphalt rejuvenator and permeable technology, which is applied in building components, building insulation materials, buildings, etc., can solve the problems of poor permeability, unsatisfactory regeneration effect, poor thermal stability and aging resistance, etc., and achieve improved penetration Effect, reduction of adverse effects, effect of safety performance improvement

Active Publication Date: 2021-11-05
CHANGAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The object of the present invention is to provide an aging-resistant penetrating asphalt rejuvenator and its preparation method to overcome the poor thermal stability and aging resistance and poor permeability of existing asphalt rejuvenators due to the high content of light components. Due to the two practical problems of poor regeneration effect, the asphalt pavement regeneration agent of the present invention has excellent permeability, good aging resistance, and simple preparation process

Method used

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  • A kind of aging-resistant penetrating asphalt regenerant and its preparation method
  • A kind of aging-resistant penetrating asphalt regenerant and its preparation method

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preparation example Construction

[0021] A preparation method of aging-resistant penetrating asphalt regenerant, comprising the following steps:

[0022] Step 1: Add the base oil into the reaction vessel, add the compatibilizer at 110°C-130°C and stir at 300r / min-400r / min for 20min-30min to preliminarily prepare the mother liquor of the regenerant;

[0023] Step 2: Increase the temperature to 120°C-130°C, add anti-aging agent, and stir at a constant temperature of 800r / min-1000r / min for 45min-60r / min;

[0024] Step 3: Lower the temperature of the solution to 80°C to 95°C, then add a wetting agent and a penetrant to the reaction vessel, stir at a constant temperature of 200r / min to 300r / min for 15 to 20 minutes, and stand to cool to obtain Anti-aging penetrating asphalt regenerant.

Embodiment 1

[0027] According to the number of parts by mass, 80 parts of base oil prepared by catalytic cracking oil slurry and residual oil at a ratio of 2:1 were added to a three-necked flask, and then 8 parts of base oil obtained by compounding sulfonate and maleic anhydride were taken. Add the compatibilizer to the base oil, and stir for 20 minutes at a rate of 300r / min. During the stirring process, the temperature is controlled at 110°C; Stir at 200r / min for 45min; then lower the temperature of the mixed solution to 80°C, add 0.5 parts of alkylphenol polyoxyethylene ether and 3 parts of fatty alcohol polyoxyethylene ether into the reaction vessel, stir at 200r / min for 15min, then statically After cooling, the anti-aging penetrating asphalt regenerant can be obtained.

Embodiment 2

[0029] According to the number of parts by mass, 88 parts of base oil prepared by catalytic cracking oil slurry and residual oil at a ratio of 2:1 were added to a three-necked flask, and 10 parts of base oil obtained by compounding sulfonate and maleic anhydride were taken. Add the compatibilizer to the base oil, and stir for 25 minutes at a rate of 350r / min. During the stirring process, the temperature is controlled at 120°C; Stir for 53min at 250r / min; then lower the temperature of the mixed solution to 88°C, add 0.8 parts of alkylphenol polyoxyethylene ether and 4 parts of fatty alcohol polyoxyethylene ether into the reaction vessel, stir at 250r / min for 18min, then let it stand After cooling, the aging-resistant penetrating asphalt regenerant can be obtained.

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Abstract

The invention discloses an aging-resistant penetrating asphalt rejuvenator and a preparation method thereof. It is prepared from the following raw materials in parts by mass: 80-95 parts of base oil, 8-12 parts of compatibilizer, and 2-2 parts of anti-aging agent. 4 parts, 0.5-1.2 parts of wetting agent, 3-5 parts of penetrating agent. The asphalt pavement regeneration agent of the invention has excellent permeability, good aging resistance and simple preparation process.

Description

technical field [0001] The invention relates to the field of regeneration and utilization of aged asphalt on asphalt pavement, in particular to an aging-resistant penetration type asphalt regenerant and a preparation method thereof. Background technique [0002] Utilizing the waste asphalt mixture for regeneration can effectively treat the waste, reduce waste accumulation and floor space, and save waste disposal costs. At the same time, the recycling of waste can not only save a large amount of high-quality new asphalt and gravel materials, but also reduce environmental and safety problems such as soil erosion and landslides caused by aggregate mining. The key to the recycling of waste asphalt mixture is the regeneration of waste asphalt, which is closely related to the performance of asphalt regenerant. Therefore, the development of high-performance asphalt regenerant becomes the key to asphalt pavement regeneration. [0003] At present, there are two main theories of asp...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L95/00C08L91/00C08L71/02C08K3/34C08K7/00C08K3/26C08K3/30C08K5/09
CPCC08L95/00C08L2201/08C08L2205/025C08L2205/035C08L91/00C08L71/02C08K3/346C08K7/00C08K3/26C08K3/30C08K5/09
Inventor 况栋梁王雪婷张洪刚张阳陈华鑫叶舟牛昌昌
Owner CHANGAN UNIV
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