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Emulsified asphalt with excellent performance and preparation method thereof

A technology for emulsified asphalt and emulsification equipment, which is used in building components, building insulation materials, buildings, etc., can solve the problems of poor later service performance, slow early strength formation, poor construction and workability of cold recycled mixture, etc. The effect of bonding, reducing reflection cracks, and eliminating road surface diseases

Active Publication Date: 2021-06-18
THE FIRST ENG CO LTD OF CTCE GRP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in practical application projects, cold recycled mixtures often have many problems such as poor construction workability, slow early strength formation, and poor later service performance.

Method used

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  • Emulsified asphalt with excellent performance and preparation method thereof
  • Emulsified asphalt with excellent performance and preparation method thereof
  • Emulsified asphalt with excellent performance and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] (1) Heat the base asphalt to 135-140°C;

[0026] (2) Mix emulsifier SGT-1901, emulsifier SGT-1904, and water at a weight ratio of 2.0:0.58:100, then add hydrochloric acid to adjust the pH value to 1.9, prepare soap liquid, and heat the soap liquid to 35-40°C;

[0027] (3) Transport the soap liquid and matrix asphalt into the colloid mill respectively, wherein the weight ratio of matrix asphalt and soap liquid is 62:38. In order to prevent sundries from entering the colloid mill, a filter device is installed at the inlet of the colloid mill; After grinding and dispersing evenly, emulsified asphalt is obtained, and when the emulsified asphalt is cooled to 60-70°C, it is transported to a storage tank for storage.

Embodiment 2

[0029] (1) Heat the base asphalt to 135-140°C;

[0030] (2) Mix emulsifier SGT-1901, emulsifier SGT-1904, and water at a weight ratio of 2.2:0.38:100, then add hydrochloric acid to adjust the pH value to 2.1, prepare soap liquid, and heat the soap liquid to 35-40°C;

[0031] (3) Transport the soap liquid and matrix asphalt into the colloid mill respectively, wherein the weight ratio of matrix asphalt and soap liquid is 62:38. In order to prevent sundries from entering the colloid mill, a filter device is installed at the inlet of the colloid mill; After grinding and dispersing evenly, emulsified asphalt is obtained, and when the emulsified asphalt is cooled to 60-70°C, it is transported to a storage tank for storage.

Embodiment 3

[0033] (1) Heat the base asphalt to 135-140°C;

[0034] (2) Mix emulsifier SGT-1901, emulsifier SGT-1904, and water at a weight ratio of 1.8:0.78:100, then add hydrochloric acid to adjust the pH value to 1.7, prepare soap liquid, and heat the soap liquid to 35-40°C;

[0035] (3) Transport the soap liquid and matrix asphalt into the colloid mill respectively, wherein the weight ratio of matrix asphalt and soap liquid is 62:38. In order to prevent sundries from entering the colloid mill, a filter device is installed at the inlet of the colloid mill; After grinding and dispersing evenly, emulsified asphalt is obtained, and when the emulsified asphalt is cooled to 60-70°C, it is transported to a storage tank for storage.

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PUM

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Abstract

The invention discloses emulsified asphalt with excellent performance. The emulsified asphalt is prepared from matrix asphalt and liquid soap, the liquid soap comprises an emulsifier SGT-1901, an emulsifier SGT-1904 and water, and an acid solution is added to adjust the pH value of the liquid soap to be acidic. The invention also discloses a preparation method of the emulsified asphalt. According to the invention, the emulsifier SGT-1901 and the emulsifier SGT-1904 are selected for compounding, so that the obtained two-component emulsifier has good compatibility with matrix asphalt; a colloid mill is selected for processing to control the particle size of particles of the emulsified asphalt, so that the specific surface area is increased, and the bonding effect is improved by dispersing and wrapping; in the emulsified asphalt preparation process, before colloid mill processing, the temperature of matrix asphalt and liquid soap before entering a colloid mill is strictly controlled, after colloid mill processing, the temperature of emulsified asphalt entering a storage tank is controlled, and the product with excellent performance is prepared by controlling the material temperature in each stage.

Description

technical field [0001] The invention belongs to the technical field of road materials, and in particular relates to an emulsified asphalt with excellent performance and a preparation method thereof. Background technique [0002] Roads in most areas of my country have gradually entered the stage of major and medium repairs. The main object of major and medium repairs is the pavement structure. The traditional "excavation and new paving" large and medium repair mode has high cost, long cycle, large demand for resources, and produces a large amount of pavement waste. material. There are a large number of asphalt pavements that need regular maintenance and maintenance in our country. The old asphalt mixture produced by the old asphalt pavement is tens of millions of tons. If it is discarded as waste, it will cause a great waste of resources. Therefore, a method for reusing old asphalt mixture has been developed. It is very important. Recycling the old materials of asphalt concre...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J3/03C08L95/00
CPCC08J3/03C08J2395/00Y02A30/30
Inventor 王时根于立广王敬东郭宏坤范祥东程前宗良宋鹏张洋刘佳奇亢朝阳
Owner THE FIRST ENG CO LTD OF CTCE GRP