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Plain asphalt reclaiming agent and preparation method and application thereof

An asphalt rejuvenator, common technology, applied in building components, building insulation materials, buildings, etc., can solve environmental hazards, high-quality asphalt waste and other problems, and achieve the effects of preventing pollution, restoring the service life of road surfaces, and protecting forest land

Inactive Publication Date: 2010-09-29
CHANGSHA UNIVERSITY OF SCIENCE AND TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

With the rapid development of highway transportation, a large number of roads have entered the period of major and medium repairs, and a large number of old roads need to be dug and milled, which not only causes great harm to the environment, but also in my country where asphalt resources are extremely scarce Under the circumstances, it also caused a lot of waste of high-quality asphalt

Method used

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  • Plain asphalt reclaiming agent and preparation method and application thereof
  • Plain asphalt reclaiming agent and preparation method and application thereof
  • Plain asphalt reclaiming agent and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] A common asphalt rejuvenator of this embodiment, which is mainly prepared by heating, mixing and stirring the following components in parts by mass:

[0023] Esso 70# new asphalt 30 copies

[0024] 65 parts of recycled oil

[0025] 4 parts dibutyl phthalate and

[0026] 1 part of high temperature stabilizer.

[0027] The above-mentioned regenerated oil is a vacuum oil obtained by fractionating crude oil through a vacuum device, wherein the aromatic content is 44.76%, and the high flash point is above 220° C.; the above-mentioned high-temperature stabilizer is sasobit. Sasobit is a new type of polyolefin high temperature stabilizer, its chemical composition is synthetic long-chain saturated hydrocarbons, and its dropping melting point is 115°C.

[0028] The preparation method of the common asphalt rejuvenator of the above-mentioned present embodiment comprises the following steps: firstly, heating 30 parts of Esso 70# fresh asphalt at 115° C. for 3 hours, and stirring...

Embodiment 2

[0030] A common asphalt rejuvenator of this embodiment, the common asphalt rejuvenator is mainly prepared by mixing, heating and stirring the following components in parts by mass:

[0031] Esso 70# new asphalt 23 parts

[0032] Regenerated oil 72 parts

[0033] 3 parts dibutyl phthalate and

[0034] High temperature stabilizer 2 parts.

[0035] The above regenerated oil is a vacuum oil obtained by fractionating crude oil through a vacuum device, wherein the aromatic content is 44.76%, and the high flash point is above 220°C; the above high temperature stabilizer is Sasobit.

[0036] The preparation method of the common asphalt rejuvenator of the above-mentioned present embodiment comprises the following steps: firstly, heating 23 parts of Esso 70# fresh asphalt at 135° C. for 2 hours, and stirring evenly; then, mixing 72 parts of regenerated oil, Heat 3 parts of dibutyl phthalate and 2 parts of high-temperature stabilizer at 135°C for 1 hour, and stir evenly to obtain a mi...

Embodiment 3

[0038] A common asphalt rejuvenator of this embodiment, the common asphalt rejuvenator is mainly prepared by mixing, heating and stirring the following components in parts by mass:

[0039] Esso 70# new asphalt 35 copies

[0040] 60 parts of recycled oil

[0041] 3 parts dibutyl phthalate and

[0042] High temperature stabilizer 2 parts.

[0043]The above regenerated oil is a vacuum oil obtained by fractionating crude oil through a vacuum device, wherein the aromatic content is 44.76%, and the high flash point is above 220°C; the above high temperature stabilizer is Sasobit.

[0044] Except for the difference in the ratio of all raw materials, the preparation method of this example is exactly the same as that of Example 1.

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Abstract

The invention belongs to the field of a composite containing an asphalt material and a preparation method and application thereof, in particular to a plain asphalt reclaiming agent and preparation and application thereof. The plain asphalt reclaiming agent is prepared from the following components: 23-35 parts of matrix asphalt, 60-75 parts of reclaimed oil, 3-5 parts of plasticizer and 0-5 parts of high temperature stabilizer, and is obtained by heating, mixing and stirring the materials. The preparation method comprises the following steps: heating the matrix asphalt at 115-135DEG C; heating and evenly stirring the reclaimed oil, plasticizer and high temperature stabilizer at 115-135 DEG C to obtain a mixture; and finally, stirring the matrix asphalt and the mixture at 115-135 DEG C and cooling to obtain the plain asphalt reclaiming agent. The application is as follows: taking aging asphalt and heating at 110-135 DEG C, adding the plain asphalt reclaiming agent, wherein the additive amount thereof is more than 30% of that of the aging asphalt; and stirring the mixture at 100-110 DEG C to obtain the reclaimed asphalt. The invention has the advantages of low cost and good reclaiming effect.

Description

technical field [0001] The invention relates to a polymer compound composition and its preparation method and application, in particular to a bituminous material composition and its preparation method and application. Background technique [0002] With the development of our country's economy and society, our country's highway transportation has also developed rapidly. By the end of 2009, the total mileage of national roads opened to traffic reached 3,828,200 kilometers; among them, 75,000 kilometers were highways. With the continuous increase of road mileage, road grades are also continuously improved, a large number of low-grade roads have been rebuilt and expanded, and road traffic is playing an increasingly important role in national economic life. [0003] The vast majority of high-grade highways in my country's highways are asphalt pavements. During the course of use, the asphalt pavement will gradually harden and age under the action of traffic load and natural fact...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L91/00C08L95/00C08K5/12C08K5/01
Inventor 周志刚姜守东周国麟陈长征杨体文李炎炎刘振兴高及阳
Owner CHANGSHA UNIVERSITY OF SCIENCE AND TECHNOLOGY
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