Asphalt recycling agent for hot recycling of asphalt on asphalt road surface

A technology of asphalt regenerant and asphalt pavement, which is applied in the field of asphalt regenerant for asphalt thermal regeneration of asphalt pavement, which can solve the problems of low safety index and inconspicuous regeneration effect, achieve good safety, maintain high temperature anti-rutting ability , good regeneration effect

Inactive Publication Date: 2012-07-25
YINGDA HEAT REGENERATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The main task of the present invention is to solve the problems of inconspicuous regeneration effect and low safety index of the regenerant used for thermal regeneration in the market, and provide an asphalt regenerant with low cost, stable quality, good regeneration effect, easy construction and high safety. Special regeneration agent for geothermal regeneration

Method used

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  • Asphalt recycling agent for hot recycling of asphalt on asphalt road surface

Examples

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Effect test

Embodiment 1

[0020] Example 1 The asphalt regenerant used for asphalt thermal regeneration of asphalt pavement, the mass percentage of each component is as follows:

[0021] Aromatic oil 19%

[0022] Heavy oil 60%

[0023] Liquid petroleum resin 20%

[0024] Stabilizer 1%.

Embodiment 2

[0025] Example 2 The asphalt regenerant used for asphalt pavement asphalt thermal regeneration, the mass percentage of each component is as follows:

[0026] Aromatic oil 70%

[0027] Heavy oil 24.8%

[0028] Liquid petroleum resin 5%

[0029] Stabilizer 0.2%.

Embodiment 3

[0030] Example 3 The asphalt regenerant used for asphalt thermal regeneration of asphalt pavement, the mass percentage of each component is as follows:

[0031] Aromatic oil 49.5%

[0032] Heavy oil 20%

[0033] Liquid petroleum resin 30%

[0034] Stabilizer 0.5%.

[0035] In each of the above-mentioned embodiments: one or more of furfural oil, extracted oil, rubber oil, etc. are selected as the aromatic oil, which is characterized in that the aromatic content is not less than 80%, and the flash point is greater than 220°C. The heavy oil is petroleum-grade heavy fuel oil or burning oil; the liquid petroleum resin is selected from Qilu Petrochemical, and the resin can be well compatible with aromatic oil and heavy oil. The stabilizer is preferably sulfur-based asphalt stabilizer from Lanzhou Lanyue Chemical Co., Ltd., the main component is sulfur, which is an existing commercial product.

[0036] The preparation method of the asphalt rejuvenator for asphalt pavement asphalt...

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Abstract

The invention discloses an asphalt recycling agent for hot recycling of asphalt on an asphalt road surface. The recycling agent comprises the following components by weight: 19-70% of an aromatic oil, 20-60% of heavy oil, 5-30% of liquid petroleum resin and 0.2-1% of a stabilizer. The invention also provides a preparation process of the asphalt recycling agent and a method for preparing recycled asphalt by use of the asphalt recycling agent. The recycling agent disclosed by the invention is good in recycling effect, easy for raw materials purchase, stable in quality, low in equipment investment, simple in processing steps, short in processing time of finished products, good in storage stability, stable in physicochemical property, and convenient for on-site operation, and is suitable for on-site hot recycling construction as a special recycling agent.

Description

technical field [0001] The invention relates to an asphalt rejuvenator for asphalt pavement thermal regeneration, a preparation method thereof, and a use method of the asphalt rejuvenator. Background technique [0002] During the use of asphalt pavement, it is exposed to the natural environment for a long time, and it is subjected to the effects of natural environment such as sunshine, precipitation, temperature changes, etc., coupled with repeated wheel rolling loads, causing the asphalt to exhibit irreversible symmetry of physical and chemical properties or mechanical properties. for aging. During the aging process of asphalt, macroscopically, it manifests as the decline of the service performance such as the increase of softening point and viscosity, the decrease of penetration and ductility. From the analysis of the transfer of the four components of asphalt, there is little change in saturated content, a significant decrease in aromatic content, a small change in collo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L95/00C08L91/00C08K5/01
Inventor 施伟斌张义甫戴合理杨键吴国义
Owner YINGDA HEAT REGENERATION
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