A kind of road asphalt modifier and preparation method thereof

A technology of road asphalt and modifier, applied in the field of asphalt modifier, can solve the problems of poor dispersibility of modifier and single improvement performance, and achieve the effects of good dispersion performance, non-toxic environmental protection cost, and good thermal stability performance.

Active Publication Date: 2016-01-20
CHANGAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, most of the current inorganic asphalt modifiers have many problems such as single improvement performance and poor dispersibility of the modifier. Demand for Micronized Asphalt Modifiers

Method used

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  • A kind of road asphalt modifier and preparation method thereof
  • A kind of road asphalt modifier and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] The road asphalt modifier of the present embodiment is mainly made of the following raw materials in parts by weight: mullite powder 12g, cordierite powder 10g, fatty alcohol polyoxyethylene ether AEO-32g, polyacrylic acid 3g; The fineness is 3000 mesh, and the fineness of the cordierite powder is 3000 mesh.

[0023] The preparation method of the road asphalt modifier of the present embodiment is:

[0024] Step 1. Mix and stir mullite powder and cordierite powder evenly to obtain a mixture, add the mixture to fatty alcohol polyoxyethylene ether diluted with absolute ethanol, and stir for 3 hours at room temperature to obtain a surface-treated mixture; the anhydrous The mass of ethanol is 20g;

[0025] Step 2: adding polyacrylic acid to the surface-treated mixture in Step 1, and stirring evenly to obtain a road asphalt modifier.

Embodiment 2

[0031] The road asphalt modifier of the present embodiment is mainly made of the following raw materials in parts by weight: mullite powder 4g, cordierite powder 14g, fatty alcohol polyoxyethylene ether AEO-31g, polyacrylic acid 1g; The fineness is 1000 mesh, and the fineness of the cordierite powder is 2000 mesh.

[0032] The preparation method of the road asphalt modifier of the present embodiment is:

[0033] Step 1. Mix and stir mullite powder and cordierite powder evenly to obtain a mixture, add the mixture to fatty alcohol polyoxyethylene ether diluted with absolute ethanol, and stir for 4 hours at room temperature to obtain a surface-treated mixture; the anhydrous The mass of ethanol is 9g;

[0034] Step 2: adding polyacrylic acid to the surface-treated mixture in Step 1, and stirring evenly to obtain a road asphalt modifier.

Embodiment 3

[0036] The road asphalt modifier of the present embodiment is mainly made of the following raw materials in parts by weight: 8 jin of mullite powder, 10 jin of cordierite powder, 2 jin of fatty alcohol polyoxyethylene ether AEO-52 jin, and 4 jin of polyacrylic acid; The fineness of the mullite powder is 2000 mesh, and the fineness of the cordierite powder is 1000 mesh.

[0037] The preparation method of the road asphalt modifier of the present embodiment is:

[0038] Step 1. Mix and stir mullite powder and cordierite powder evenly to obtain a mixture, add the mixture to fatty alcohol polyoxyethylene ether diluted with absolute ethanol, and stir for 3.5 hours at room temperature to obtain a surface-treated mixture; The mass of water ethanol is 28 jin;

[0039] Step 2: adding polyacrylic acid to the surface-treated mixture in Step 1, and stirring evenly to obtain a road asphalt modifier.

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Abstract

The invention discloses a road asphalt modifier. The road asphalt modifier is prepared from the following main raw materials in parts by weight: 4-20 parts of mullite powder, 6-14 parts of cordierite powder, 1-3 parts of fatty alcohol polyoxyethylene ether and 1-4 parts of polyacrylic acid. In addition, the invention aslo discloses a preparation method of the road asphalt modifier. The preparation method comprises the following steps: step one. mixing the mullite powder and the cordierite powder, uniformly stirring so as to obtain a mixture, adding the mixture to the fatty alcohol polyoxyethylene ether diluted by absolute ethyl alcohol, and uniformly stirring so as to obtained the mixture subjected to surface treatment; and step two. adding the polyacrylic acid to the mixture subjected to surface treatment, and uniformly stirring so as to obtain the road asphalt modifier. All the components in the road asphalt modifier are non-toxic, environmentally-friendly and low in cost; the preparation technology of the modifier is simple, and the modifier has good thermal stability and is suitable for wide application.

Description

technical field [0001] The invention belongs to the technical field of asphalt modifiers, in particular to a road asphalt modifier and a preparation method thereof. Background technique [0002] With the development of pavement technology, asphalt and asphalt mixture have been widely used as road materials. The road performance of asphalt mixture pavement is not only related to factors such as traffic load and environment, but also the asphalt material itself. Due to the strong sensitivity of asphalt to temperature, it is prone to aging phenomenon under high temperature and ultraviolet radiation, and is resistant to Poor fatigue performance limits its performance to a certain extent. Therefore, the modification of asphalt has become an effective measure to improve the performance of asphalt materials. Among them, the inorganic modification of asphalt can not only improve the performance of asphalt and asphalt mixture, but also reduce its production cost to a large extent, s...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L95/00C08K9/04C08K3/34C08K3/22
Inventor 王朝辉孙晓龙王玉飞刘相儒刘立斌李德彬高志伟
Owner CHANGAN UNIV
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