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Environment-friendly waste road asphalt regenerating agent and preparation method thereof

A technology of waste asphalt and rejuvenating agent, which is applied in building insulation materials, building components, buildings, etc., can solve the problems of low cost performance, high price, and unenvironmental protection of rejuvenating agent, and achieve the effect of high cost performance.

Active Publication Date: 2013-05-01
SHANGHAI PUDONG ROAD & BRIDGE CONSTR +3
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] To a certain extent, these regenerants can effectively regenerate waste asphalt, but due to the high price of light oils, vegetable oils, solvent oils and resins rich in aromatic components, and some components cannot be regenerated, such as light high-quality oils; some are not environmentally friendly, such as anti-aging agents, all in all, these regenerants are low in cost performance and uneconomical

Method used

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  • Environment-friendly waste road asphalt regenerating agent and preparation method thereof
  • Environment-friendly waste road asphalt regenerating agent and preparation method thereof
  • Environment-friendly waste road asphalt regenerating agent and preparation method thereof

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preparation example Construction

[0036] Simultaneously, the present invention also provides a kind of preparation method of environment-friendly type road waste asphalt regeneration agent, described method comprises the steps:

[0037] A. Preheat the reactor and raise the temperature to 110-170°C, add 45-75 parts by weight of regeneration components into the reactor, and stir for 20-50 minutes;

[0038] B. After the stirring is completed, add 25 to 55 parts by weight of waste styrene-butadiene rubber powder, control the temperature at 160 to 200 ° C, and stir for 70 to 100 minutes;

[0039] C. After the stirring is completed, gradually lower the temperature to 80-120°C, add 1-5 parts by weight of plasticizer and 0.5-3 parts by weight of anti-waste agent in turn, stir for 25-45 minutes, then gradually cool to room temperature, and finally get the obtained Environmentally friendly road waste asphalt regenerant.

[0040]The present invention will be further described in conjunction with specific implementation ...

Embodiment 1

[0042] First, preheat the reactor. After the temperature of the reactor is preheated to 165°C, weigh 60 parts of oil processed and refined from inferior poultry fat in parts by weight, put it into the reactor and stir it rapidly for 40 minutes; then weigh the waste butylbenzene in proportion 36 parts of rubber powder, the particle size of the waste styrene-butadiene rubber powder is 60-80 mesh, put into the reaction kettle, heat to 180°C, and stir rapidly for 85min; then gradually cool down to 110°C, add 3 parts of phthalic acid dicarboxylate in sequence Octyl ester and 1 part of tert-butyl hydroquinone, continue to stir rapidly for 30 minutes, and then gradually cool to room temperature to obtain an environmentally friendly road waste asphalt regenerant.

Embodiment 2

[0044] First, preheat the reaction kettle. After the temperature of the reaction kettle is preheated to 110°C, weigh 50 parts by weight of the oil processed and refined from the greasy floating matter in the sewer, put it into the reaction kettle and stir it quickly for 30 minutes; then weigh the waste in proportion. 45 parts of styrene-butadiene rubber powder, the particle size of the waste styrene-butadiene rubber powder is 70-90 mesh, put it into the reaction kettle, heat it to 190°C, and stir it rapidly for 90min; then gradually cool down to 120°C, add 4.5 parts of terephthalate Ethylene glycol formate and 0.5 parts of tert-butyl hydroquinone were stirred rapidly for 35 minutes, and then gradually cooled to room temperature to obtain an environmentally friendly road waste asphalt regenerant.

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Abstract

The invention discloses an environment-friendly waste road asphalt regenerating agent. The environment-friendly waste road asphalt regenerating agent comprises the following components in part by weight: 45-75 parts of regenerating component, 1-5 parts of plasticizer, 25-55 parts of waste styrene butadiene rubber powder and 0.5-3 parts of anti-waste agent. The invention further discloses a preparation method of the environment-friendly waste road asphalt regenerating agent. The regenerating agent provided by the invention is an asphalt regenerating agent of which asphalt light component and asphaltene supplement are synthesized from waste resources, so that the environment-friendly waste road asphalt regenerating agent is good in regenerating performance, economical and environment-friendly, does not use existing resources or resources to be developed, and can recycle the waste resources to the maximum extent.

Description

technical field [0001] The invention belongs to the field of asphalt material compositions, and in particular relates to an environment-friendly road waste asphalt regeneration agent and a preparation method thereof. Background technique [0002] With the vigorous development of road construction in our country, the construction and maintenance technology of asphalt mixture pavement is becoming more and more mature, and the amount of asphalt used is also increasing year by year. However, in the context of the depletion of fossil fuels and the decline of asphalt production in the future, during the long-term use of asphalt pavement, due to factors such as oxidation, sunlight, rain, load and temperature changes, waste and harden will occur, and then Cause cracks, potholes and other road surface damage. Therefore, the method and technology of maintaining or improving the service life of the existing asphalt mixture pavement and regenerating waste asphalt is the most direct way...

Claims

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Application Information

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IPC IPC(8): C08L95/00C08L9/06C08L91/00C08K5/12C08K5/11C08K5/101C08K5/13
Inventor 刘钢李军代赫振华邓国民马利志李交夏庆宇邱轶徐韵淳袁月王腾飞
Owner SHANGHAI PUDONG ROAD & BRIDGE CONSTR
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