High-viscosity high-weather-resistance emulsified asphalt and preparation method thereof

A technology of emulsified asphalt and weather resistance, applied in building components, building insulation materials, buildings, etc., can solve the problems of unsatisfactory dispersion effect of natural montmorillonite, and achieve the effect of improving anti-aging performance, excellent barrier performance and prolonging diffusion path.

Pending Publication Date: 2022-07-05
鄂尔多斯市路泰公路工程有限责任公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the prior art, montmorillonite is generally added to emulsified asphalt to improve the anti-aging performance of emulsified asphalt, but the dispersion effect of natural montmorillonite in emulsified asphalt is not ideal, and th

Method used

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  • High-viscosity high-weather-resistance emulsified asphalt and preparation method thereof
  • High-viscosity high-weather-resistance emulsified asphalt and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] A preparation method of high-viscosity and high-weather-resistant emulsified asphalt, comprising the following steps:

[0028] (1) Take 20 mg of ferric oxide particles, 60 mL of absolute ethanol and 8 mL of deionized water, and after mixing, ultrasonically disperse for 20 minutes, add 4 mL of ammonia water, continue to ultrasonically disperse for 30 minutes, and then add 0.4 mL of tetrabutyl titanate, and stir for 1 h. Magnetic separation and vacuum drying at 50°C to obtain magnetic nanowires. The magnetic nanowires were prepared under the condition of a horizontal magnetic field, and the magnetic field strength was 50 mT.

[0029] Take montmorillonite and deionized water, ultrasonically disperse for 25min to obtain 10g / L montmorillonite suspension;

[0030] Take magnetic nanowires and absolute ethanol, ultrasonically disperse them for 20 min to obtain a dispersion of 1 g / L; take dopamine and Tris buffer, mix and dissolve to obtain a mixed solution, the concentration o...

Embodiment 2

[0036] A preparation method of high-viscosity and high-weather-resistant emulsified asphalt, comprising the following steps:

[0037] (1) Take 20 mg of ferric oxide particles, 60 mL of absolute ethanol and 8 mL of deionized water, and after mixing, ultrasonically disperse for 25 minutes, add 4 mL of ammonia water, continue ultrasonic dispersion for 35 minutes, then add 0.4 mL of tetrabutyl titanate, and stir for 1.2 h. , magnetic separation, and vacuum drying at 55 °C to obtain magnetic nanowires. The magnetic nanowires were prepared under the condition of a horizontal magnetic field, and the magnetic field strength was 50 mT.

[0038] Take montmorillonite and deionized water, ultrasonically disperse for 30min to obtain 10g / L montmorillonite suspension;

[0039]Take the magnetic nanowires and absolute ethanol, ultrasonically disperse them for 25 min to obtain a dispersion of 1 g / L; take dopamine and Tris buffer, mix and dissolve to obtain a mixed solution, the concentration o...

Embodiment 3

[0045] A preparation method of high-viscosity and high-weather-resistant emulsified asphalt, comprising the following steps:

[0046] (1) Take 20 mg of ferric oxide particles, 60 mL of absolute ethanol and 8 mL of deionized water, and after mixing, ultrasonically disperse for 30 minutes, add 4 mL of ammonia water, continue to ultrasonically disperse for 40 minutes, and then add 0.4 mL of tetrabutyl titanate, and stir for 1.5 hours. , magnetic separation, and vacuum drying at 60 °C to obtain magnetic nanowires. The magnetic nanowires were prepared under the condition of a horizontal magnetic field, and the magnetic field strength was 50 mT.

[0047] Take montmorillonite and deionized water, ultrasonically disperse for 35min to obtain 10g / L montmorillonite suspension;

[0048] Take the magnetic nanowires and absolute ethanol, ultrasonically disperse them for 30 min to obtain a dispersion of 1 g / L; take dopamine and Tris buffer, mix and dissolve to obtain a mixed solution, the c...

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Abstract

The invention discloses high-viscosity high-weather-resistance emulsified asphalt and a preparation method thereof, and the high-viscosity high-weather-resistance emulsified asphalt is prepared from the following components: matrix asphalt, liquid soap, filler and the like, so as to obtain the high-weather-resistance excellent-aging-resistance emulsified asphalt. According to the scheme, montmorillonite is introduced, the nano lamellar structure of the montmorillonite has excellent barrier performance, the montmorillonite is added into the emulsified asphalt as a modifier, the diffusion path of oxygen can be prolonged, permeation and diffusion of harmful substances can be blocked, meanwhile, loss of volatile components in the asphalt is prevented, and the anti-aging performance of the emulsified asphalt can be greatly improved. According to the high-viscosity and high-weather-resistance emulsified asphalt and the preparation method thereof, the process design is reasonable, operation is easy, the prepared emulsified asphalt is good in cohesiveness and excellent in ageing resistance, and the high-viscosity and high-weather-resistance emulsified asphalt can be widely applied to the fields of road construction, building construction and the like and has high practicability.

Description

technical field [0001] The invention relates to the technical field of emulsified asphalt, in particular to a high-viscosity and high-weather-resistant emulsified asphalt and a preparation method thereof. Background technique [0002] Emulsified asphalt is a liquid asphalt in which oil-in-water or water-in-oil is formed under the action of asphalt and emulsifier in a certain process. Emulsified asphalt is a kind of road building material with low viscosity and good fluidity at room temperature by liquefying the road asphalt usually used at high temperature through mechanical stirring and chemical stabilization method (emulsification), diffusing into water and liquefying. It can be used at room temperature or with cold and damp stones. [0003] In the prior art, montmorillonite is generally added to emulsified asphalt to improve the anti-aging performance of emulsified asphalt, but the dispersion effect of natural montmorillonite in emulsified asphalt is not ideal, and the e...

Claims

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Application Information

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IPC IPC(8): C08L95/00C08L9/08C08K9/10C08K9/12C08K7/08
CPCC08L95/00C08K2201/01C08K2201/011C08L2201/14C08L9/08C08K9/10C08K9/12C08K7/08Y02A30/30
Inventor 高仲罗志宝姚文斌刘海洋云靖博白瑞李建军高志平牛强薛治国张艳贺欣宇田小刘伟东吕国栋李志伟马慧云王永生张志彪岳陆樊兴卫吴文香党志龙
Owner 鄂尔多斯市路泰公路工程有限责任公司
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