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Preparation method of buton rock asphalt modified asphalt mixture

A technology of asphalt mixture and asphalt modification, which is applied in the direction of building insulation materials, building components, buildings, etc. It can solve the problems of difficult classification and identification, low softening point, poor storage stability and mechanical properties, and improve the softening point , Uniform performance, reducing the effect of agglomeration

Inactive Publication Date: 2017-11-07
安徽和轩岩沥青科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This makes it difficult to classify and identify
[0003] The asphalt mixture prepared by the prior art generally has the disadvantages of poor storage stability and mechanical properties and a low softening point

Method used

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  • Preparation method of buton rock asphalt modified asphalt mixture
  • Preparation method of buton rock asphalt modified asphalt mixture

Examples

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Embodiment 1

[0020] A preparation method of Buton rock asphalt modified asphalt mixture, its components are calculated by weight: 40 parts of base asphalt, 29 parts of Buton rock asphalt, 22 parts of nano cerium oxide, 13 parts of surfactant, 12 parts of stabilizer , 8 parts of dispersant, 7 parts of styrene-butadiene rubber and 0.7 part of nanometer montmorillonite; Its preparation method comprises the following steps:

[0021] a, pulverizing the above-mentioned raw materials except matrix asphalt and Buton rock asphalt, to obtain mixed component A;

[0022] b. Mix the Butonite asphalt and base asphalt at 176°C, stir and premix and swell for 35 minutes and then primary shear to obtain the mixed component B;

[0023] c. When the temperature of the mixed component B reaches 140°C, add the mixed component A to the mixed component B, start the high-shear dispersing emulsifier, and when the mixed component A is added, adjust the shearing machine speed to 6500r / min, stirring for 90min, and kee...

Embodiment 2

[0025] A preparation method of Buton rock asphalt modified asphalt mixture, its components are calculated by weight: 42 parts of base asphalt, 27 parts of Buton rock asphalt, 20 parts of nano cerium oxide, 15 parts of surfactant, 10 parts of stabilizer , 9 parts of dispersant, 6 parts of styrene-butadiene rubber and 0.9 part of nanometer montmorillonite; Its preparation method comprises the following steps:

[0026] a, pulverizing the above-mentioned raw materials except matrix asphalt and Buton rock asphalt, to obtain mixed component A;

[0027] b. Mix Buton rock asphalt and base asphalt at 182°C, stir and premix and swell for 38 minutes and then primary shear to obtain mixed component B;

[0028] c. When the temperature of the mixed component B reaches 152°C, add the mixed component A into the mixed component B, start the high-shear dispersing emulsifier, and when the mixed component A is added, adjust the shearing machine speed to 6750r / min, stirring for 98min, and keeping...

Embodiment 3

[0030] A preparation method of Buton rock asphalt modified asphalt mixture, its components are calculated by weight: 46 parts of base asphalt, 30 parts of Buton rock asphalt, 26 parts of nano cerium oxide, 18 parts of surfactant, 15 parts of stabilizer , 11 parts of dispersants, 10 parts of styrene-butadiene rubber and 1.1 parts of nano-montmorillonite; its preparation method may further comprise the steps:

[0031] a, pulverizing the above-mentioned raw materials except matrix asphalt and Buton rock asphalt, to obtain mixed component A;

[0032] b. Mix Butonite asphalt and base asphalt at 188°C, stir and premix and swell for 40 minutes and then primary shear to obtain mixed component B;

[0033] c. When the temperature of the mixed component B reaches 165°C, add the mixed component A to the mixed component B, start the high-shear dispersing emulsifier, and when the mixed component A is added, adjust the speed of the shearing machine to 7150r / min, stirring for 113min, and kee...

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Abstract

The invention relates to the technical field of pavement construction and specifically relates to a preparation method of a buton rock asphalt modified asphalt mixture. The buton rock asphalt modified asphalt mixture is prepared from the following ingredients: matrix asphalt, buton rock asphalt, nano cerium oxide, a surface active agent, a stabilizer, a dispersant, butadiene styrene rubber and nano montmorillonite. According to the preparation method disclosed by the invention, the nano montmorillonite, the buton rock asphalt and the nano cerium oxide are selected as the raw materials to prepare the buton rock asphalt modified asphalt mixture; thus, a softening point of asphalt is improved, needle penetration of the asphalt is reduced, and high temperature performance of the asphalt is improved at the same time; the nano cerium oxide, the buton rock asphalt and the butadiene styrene rubber are utilized as the raw materials to prepare the buton rock asphalt modified asphalt mixture, so that very good high-temperature storage stability is achieved; furthermore, the three raw materials are added to form a chemical crosslinking elastic network structure in the asphalt, so that storage stability and mechanical property of the buton rock asphalt modified asphalt mixture are enhanced.

Description

technical field [0001] The invention relates to the technical field of road surface construction, in particular to a preparation method of Buton rock asphalt modified asphalt mixture. Background technique [0002] Bitumen is a product of crude oil processing. It is a black or dark brown viscous liquid or solid at room temperature. It mainly contains soluble trichlorethylene hydrocarbon derivatives. Its properties and composition vary with sources and production methods. Variety. Like petroleum, asphalt is a complex organic mixture without fixed chemical composition and physical constants, and many oil minerals form a continuous series in transitional form. This brings many difficulties to classification and identification. [0003] The asphalt mixture prepared in the prior art generally has the disadvantages of poor storage stability and mechanical properties and a low softening point. Contents of the invention [0004] Aiming at the above existing problems, a Buton roc...

Claims

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Application Information

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IPC IPC(8): C08L95/00C08L91/06C08L71/02C08K13/02C08K3/22C08K3/34C08K5/101C08K5/098
CPCC08L95/00C08K2003/2213C08K2201/011C08L2201/08C08L2205/02C08L2205/035C08L2312/00C08L91/06C08L71/02C08K13/02C08K3/22C08K3/346C08K5/101C08K5/098
Inventor 鲍建平
Owner 安徽和轩岩沥青科技有限公司
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