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Ageing resistance composite modifying agent for bitumen for road use

A composite modifier and anti-aging technology, applied in the field of materials, can solve the problem of not improving the anti-aging performance of asphalt, and achieve the effects of improving its own performance, improving durability, and slowing down the speed and degree of aging.

Inactive Publication Date: 2011-02-16
CHANGAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The technical problem to be solved by the present invention is to overcome the shortcomings that the above-mentioned common polymer modifiers cannot improve the anti-aging performance of asphalt, and provide a composite anti-aging asphalt modifier for road use

Method used

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  • Ageing resistance composite modifying agent for bitumen for road use
  • Ageing resistance composite modifying agent for bitumen for road use
  • Ageing resistance composite modifying agent for bitumen for road use

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Taking the production of product 100kg of the present invention as an example, the raw materials used and their weight proportions are:

[0030] Antiaging agent 2246-S 18.75kg

[0031] Antioxidant 168 18.75kg

[0032] Carbon black DL8 62.5kg

[0033] The proportioning by weight of above-mentioned raw material is:

[0034] Antiaging agent 2246-S 0.6 parts

[0035] Antioxidant 168 0.6 parts

[0036] Carbon black DL8 2 parts

[0037] Its preparation method is as follows:

[0038] Put anti-aging agent 2246-S, antioxidant 168, and carbon black DL8 into a stainless steel bucket, stir it with a high-speed shearer for 5 to 10 minutes to make it fully mixed, and make the asphalt anti-aging composite modifier for road use of the present invention. Subpackage.

Embodiment 2

[0040] Taking the production of product 100kg of the present invention as an example, the raw materials used and their weight proportions are:

[0041] Antiaging agent 2246-S 23.68kg

[0042] Antioxidant 168 23.68kg

[0043] Carbon black DL8 52.64kg

[0044] The proportioning by weight of above-mentioned raw material is:

[0045] Antiaging agent 2246-S 0.9 parts

[0046] Antioxidant 168 0.9 parts

[0047] Carbon black DL8 2 parts

[0048] Its preparation method is identical with embodiment 1.

Embodiment 3

[0050] Taking the production of product 100kg of the present invention as an example, the raw materials used and their weight proportions are:

[0051] Antiaging agent 2246-S 22.22kg

[0052] Antioxidant 168 22.22kg

[0053] Carbon black DL8 55.56kg

[0054] The proportioning by weight of above-mentioned raw material is:

[0055] Antiaging agent 2246-S 0.8 parts

[0056] Antioxidant 168 0.8 parts

[0057] Carbon black DL8 2 parts

[0058] Its preparation method is identical with embodiment 1.

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Abstract

The invention relates to a road asphalt ageing resistant composite modifier, which is made by the following raw materials by weight portion: 0.3 to 1.5 portions of age inhibitor, 0.3 to 1.5 portions of antioxidant and 1 to 5 portions of photomask agent. The age inhibitor is age inhibitor 2246-S, age inhibitor 2246, age inhibitor 1010 or age inhibitor 1076; the antioxidant is antioxidant 168 or antioxidant DLTP; and the photomask agent is carbon black DL8, carbon black BP7 or carbon black Vcx500. As shown by the results of a plurality of researches and experiments, by adoption of the road asphalt ageing resistant composite modifier produced by the invention, the self performance of asphalt can be improved; the ageing speed of the asphalt can be retarded; the durableness of asphalt pavements can be improved; the service life of the asphalt pavements can be prolonged; and various road performances after asphalt ageing can still meet the index requirements of the Stratagem Highway Researching Plan in America (SHRP). The road asphalt ageing resistant composite modifier can be taken as asphalt additives and used for solving the technical problem of asphalt ageing.

Description

technical field [0001] The invention belongs to the technical field of materials, and in particular relates to an asphalt antiaging agent for roads. Background technique [0002] With the progress of the society and the development of the economy, people have more and more stringent requirements on the quality of roads. Among them, anti-aging performance, as an important index to ensure the quality of road asphalt, has been paid more and more attention. The quality of my country's petroleum asphalt is poor, the problem of aging is serious, and there is a big gap between road age and road conditions compared with foreign countries. Therefore, the development of effective asphalt anti-aging agent is obviously and important for improving the anti-aging performance of petroleum asphalt, improving the performance of asphalt pavement, prolonging the service life of asphalt pavement, and reducing the country's financial expenditure in road maintenance and repeated road repair. mea...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08K5/526C08K5/375C08K5/372C08K5/13C08L95/00C08K5/134C08K3/04
Inventor 裴建中徐士翠李宁利党国兴陈勇常明丰
Owner CHANGAN UNIV
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