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Asphalt antistripping agent

An anti-stripping agent and asphalt technology, which is applied in the field of asphalt anti-stripping agent preparation, can solve problems such as easy aging, asphalt peeling, and asphalt wax content

Inactive Publication Date: 2009-07-08
当阳市公路管理段
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] If no anti-stripping agent is added to road asphalt, its adhesion to various stone materials is not good, it is easy to age, and the asphalt will peel off due to water damage. The main reason is that ordinary domestic asphalt has a heavy wax content Poor adhesion, caused by peeling of asphalt from the aggregate surface under the action of water; commonly used anti-stripping agents are amine and phosphate ester products, which have poor thermal stability and are easy to decompose harmful gases when heated. Conducive to environmental protection

Method used

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  • Asphalt antistripping agent

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0006] Embodiment 1: 45Kg of nano-calcium carbonate and 55Kg of yttrium chloride powder are mixed at room temperature and then stirred evenly to obtain an asphalt anti-stripping agent.

Embodiment 2

[0008] Mix 50Kg of nano-calcium carbonate and 50Kg of yttrium chloride powder at room temperature and stir evenly to obtain the asphalt anti-stripping agent.

Embodiment 3

[0010] Mix 55Kg of nano-calcium carbonate and 45Kg of yttrium chloride powder at room temperature and stir evenly to obtain an asphalt anti-stripping agent.

[0011] When the asphalt anti-stripping agent is used, the addition amount is 0.5-1% by weight of the asphalt.

[0012] The water stability test report of the asphalt mixture added with this asphalt anti-stripping agent is shown in Table 1:

[0013] Experiment report on water stability performance of asphalt mixture Table 1

[0014]

[0015] Table 2 of the anti-aging performance test report of asphalt materials added with this asphalt anti-stripping agent:

[0016] Experimental report on thermal aging resistance of asphalt materials Table 2

[0017]

[0018] Table 3

[0019] Experimental report on anti-stripping performance of asphalt mixture materials Table 3

[0020]

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PUM

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Abstract

The invention relates to a pitch anti-stripping agent, which is prepared by evenly mixing the following materials in percentage by weight: 45 to 55 percent of nanometer calcium carbonate and 45 to 55 percent of yttrium chloride. When the pitch anti-stripping agent is added to the pitch, the 5 DEG C, the 10 DEG C and the 15 DEG C of the pitch is improved by 2 to 3 times compared with that of the substrate pitch; the penetration degree and the softening point of the pitch are also superior to that of the substrate pitch; the water stability of the pitch is superior to that of the substrate pitch; and the anti-strip performance of the pitch is 1 to 2 grades superior to the common No.70 and No.100 pitch mixtures.

Description

technical field [0001] The invention relates to the preparation of an asphalt anti-stripping agent. Background technique [0002] If no anti-stripping agent is added to road asphalt, its adhesion to various stone materials is not good, it is easy to age, and the asphalt will peel off due to water damage. The main reason is that ordinary domestic asphalt has a heavy wax content Poor adhesion is caused by asphalt peeling off from the surface of the aggregate under the action of water; commonly used anti-stripping agents are amine and phosphate products, which have poor thermal stability and are easy to decompose harmful gases when heated. Conducive to environmental protection. Contents of the invention [0003] The object of the present invention is to provide an asphalt anti-stripping agent which has good anti-stripping effect and does not cause harm to the environment. [0004] The object of the present invention is achieved like this: an asphalt anti-stripping agent is ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B22/10C04B22/06
Inventor 吴开权章征春王庆吴中怡丁庆荣王英胡兆德
Owner 当阳市公路管理段
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