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Petroleum asphalt anti-stripping agent, preparation method and use method thereof

A petroleum asphalt and anti-stripping agent technology, applied in the field of petroleum asphalt anti-stripping agent, can solve the problems of easy decomposition, affecting the anti-stripping effect, limited adsorption capacity, etc., to improve anti-aging, improve water damage resistance, The effect of easy operation

Active Publication Date: 2013-03-27
山东星火知识产权服务有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the general anti-stripping agent is easy to decompose when the asphalt heating process reaches 150°C, which affects the anti-stripping effect, and has limited adsorption capacity for stones with strong acidity.

Method used

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  • Petroleum asphalt anti-stripping agent, preparation method and use method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] According to the ratio of 20 parts of fatty acid iron salt, 10 parts of calcium hydroxyphosphate, 5 parts of quaternary ammonium salt and 65 parts of gasoline, anti-stripping agent A is prepared by heating and melting. 0.5% of the anti-stripping agent prepared according to the proportion of the formula, after preliminary mixing, shear and stir with a high-shear emulsifier at a rate of 7000 r / min for 30 minutes, and the anti-stripping petroleum asphalt A can be obtained.

Embodiment 2

[0018] According to the proportion of 30 parts of fatty acid iron salt, 8 parts of hydroxy calcium phosphate, 6 parts of quaternary ammonium salt and 56 parts of gasoline, the anti-stripping agent A is prepared by heating and melting. 0.5% of the anti-stripping agent prepared according to the proportion of the formula, after preliminary mixing, shear and stir with a high-shear emulsifier at a rate of 7000 r / min for 30 minutes, and the anti-stripping petroleum asphalt B can be obtained.

Embodiment 3

[0020] According to the proportion of 25 parts of fatty acid iron salt, 5 parts of hydroxy calcium phosphate, 10 parts of quaternary ammonium salt and 60 parts of gasoline, the anti-stripping agent A is prepared by heating and melting. Anti-stripping asphalt C can be prepared by using a high-shear emulsifier at a rate of 7000 r / min for 30 min after preliminary mixing of 0.5% anti-stripping agent prepared according to the formula ratio.

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Abstract

The invention belongs to the technical field of construction materials and relates to a petroleum asphalt anti-stripping agent, a preparation method and a use method thereof. The petroleum asphalt anti-stripping agent comprises the following components in parts by weight: 20-35 parts of fatty acid iron salt, 5-10 parts of hydroxyapatite, 5-10 parts of quaternary ammonium salt and 40-80 parts of gasoline. By using the anti-stripping agent, the adhesion of asphalt acidic building stones is improved, the water damage resistant capability of an asphalt mixture is enhanced, the age resistance of the asphalt is improved, and the service life of road surfaces is prolonged.

Description

technical field [0001] The invention belongs to the technical field of building materials, and relates to a petroleum asphalt anti-stripping agent, a preparation method and a use method. Background technique [0002] Spalling is the most common damage to asphalt pavements. The cohesive force between the asphalt film and the aggregate is lost, and it falls off from the surface of the aggregate particles, which shortens the service life of the pavement, increases the maintenance toll, and seriously affects the performance of the asphalt pavement. Therefore, improving the anti-stripping performance between asphalt and aggregates has been a major issue faced by road departments and asphalt research fields for a long time. [0003] The anti-stripping measures mainly include: use dry ground slaked lime powder or quicklime powder, and cement as part of the filler, and the amount should be 1-2% of the total amount of mineral materials; use the coarse aggregate after being treated w...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B24/12C04B26/26
Inventor 车春玲
Owner 山东星火知识产权服务有限公司
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