Asphalt regenerant as well as preparation method and application thereof

An asphalt regenerating agent and asphalt technology, which is applied in recycling technology, building components, building insulation materials, etc., can solve the problems of poor regeneration effect, low cost performance, poor effect, etc., and achieves a simple and controllable preparation method. Environmentally friendly, effect of improving anti-rutting performance

Active Publication Date: 2016-07-13
CHANGSHA UNIVERSITY OF SCIENCE AND TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Most of the regenerants used in my country in the early 1980s and 1990s were light oils produced by the petroleum industry, such as lubricating oil, diesel oil, kerosene, etc. Some provinces and cities also used this regenerant to pave some roads, but practice has proved that not good
At present, the regenerants used in China are mainly mixtures of light oil and resin. To a certain extent, these regenerants can restore the physical properties of aged asphalt, but the regeneration effect is not very good, the price is relatively expensive, and the cost performance is not good. high

Method used

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  • Asphalt regenerant as well as preparation method and application thereof
  • Asphalt regenerant as well as preparation method and application thereof
  • Asphalt regenerant as well as preparation method and application thereof

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Effect test

Embodiment 1

[0033] A kind of asphalt regenerant of the present invention is mainly formulated by the following components in parts by mass:

[0034]50 parts of mixed oil; the mixed oil is mainly prepared by mixing rapeseed oil (its aromatic content is greater than 70%, the same below) and waste lubricating oil (its aromatic content is greater than 75%, the same below) in a mass ratio of 1:2. become;

[0035] 25 parts of nano-organic montmorillonite modified asphalt; the penetration of matrix asphalt used in nano-organic montmorillonite-modified asphalt is 75dmm, and the dosage of nano-organic montmorillonite in the nano-organic montmorillonite-modified asphalt is 13%;

[0036] 25 parts of plasticizer dioctyl phthalate;

[0037] Penetrant fatty alcohol polyoxyethylene ether 3 parts.

[0038] The preparation method of the above-mentioned asphalt rejuvenator in this embodiment specifically includes the following steps: preheat the reactor to 130°C, weigh 50 parts of mixed oil into the reac...

Embodiment 2

[0046] A kind of asphalt regenerant of the present invention is mainly formulated by the following components in parts by mass:

[0047] 45 parts of mixed oil; the mixed oil is mainly formed by mixing rapeseed oil and furfural extracted oil (its aromatic content is greater than 75%, the same below) in a mass ratio of 1:2.5;

[0048] 30 parts of nano-organic montmorillonite modified asphalt; the penetration of matrix asphalt used in nano-organic montmorillonite-modified asphalt is 75dmm, and the dosage of nano-organic montmorillonite in the nano-organic montmorillonite-modified asphalt is 8%;

[0049] 30 parts of plasticizer dioctyl phthalate;

[0050] 2 parts of penetrant dodecyltrimethylammonium bromide.

[0051] The preparation method of the above-mentioned bitumen regenerant in this embodiment specifically includes the following steps: preheating the reactor to 120°C, weighing 45 parts of mixed oil into the reactor according to the ratio of rapeseed oil and furfural extrac...

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Abstract

An asphalt regenerant is mainly prepared from 40-60 parts of a regeneration component, 15-30 parts of nano organic montmorillonite modified asphalt, 15-30 parts of a plasticizer and 1-5 parts of a penetrant; the regeneration component is mixed oil mainly formed by mixing light oil and heavy oil in proportion. The preparation method of the asphalt regenerant comprises steps as follows: a reaction kettle is preheated and heated, the regeneration component is added to the reaction kettle, the nano organic montmorillonite modified asphalt is added in parts by mass after stirring, the temperature is controlled within 130-160 DEG C, the temperature is decreased to 80-120 DEG C after stirring, the penetrant and the plasticizer are added, the mixture is stirred continuously, and the asphalt regenerant is obtained after cooling. During usage, the reaction kettle is preheated, waste aged asphalt is added, the temperature is decreased gradually after quick stirring, then a certain proportion of asphalt regenerant is added, and regenerated asphalt is obtained after quick stirring. The product performance is good, the cost is low, and the technology is simple, controllable and environment-friendly.

Description

technical field [0001] The invention belongs to the field of road engineering materials, and in particular relates to an asphalt regenerant and its preparation method and application. Background technique [0002] In the past 50 years, my country's infrastructure, especially road construction, has achieved unprecedented development, and the amount of asphalt used has increased sharply year by year. , will gradually age, become brittle and hard, and then produce a series of diseases such as cracks and pits. At present, the domestic maintenance method for diseased pavement is mainly to remove the old pavement by milling and re-pave. This method will generate a lot of waste of old pavement materials, which will cause environmental pollution if not handled properly, and these wastes still have certain uses. value, as garbage disposal will also cause a huge waste of resources. Therefore, the most effective way to solve this series of problems is to maintain or improve the servic...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L91/00C08L95/00C08L71/02C08K9/04C08K3/34C08K5/12C08K5/19C08J11/06
CPCC08J11/06C08J2395/00C08L91/00C08L95/00C08L2205/025C08L2205/035C08L2207/22C08L71/02C08K9/04C08K3/346C08K5/12C08K5/19Y02W30/62
Inventor 刘其城尹业豪刘鹏曾大雁
Owner CHANGSHA UNIVERSITY OF SCIENCE AND TECHNOLOGY
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