Modifier applied to high-strength asphalt concrete as well as preparation and application thereof

A technology of asphalt concrete and modifier, applied in the field of asphalt concrete, which can solve the problems of unfavorable safety production, complex preparation process, and the need for organic solvents, and achieve the effects of facilitating stress transfer, large adsorption capacity, and improving high temperature stability

Inactive Publication Date: 2018-08-03
和县祥龙沥青混凝土有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The Chinese patent application number 201210089357.2 discloses "a water-based epoxy resin-modified emulsified asphalt and its preparation and application". The preparation process is complex and requires organic solvents, which is not conducive to safe production and will cause certain pollution to the environment

Method used

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  • Modifier applied to high-strength asphalt concrete as well as preparation and application thereof
  • Modifier applied to high-strength asphalt concrete as well as preparation and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A modifier for high-strength asphalt concrete, which consists of component A and component B, wherein the mass ratio of component A to component B is 1:0.17;

[0024] Component A is composed of the following raw materials in parts by weight: water-based epoxy resin emulsion 92.8%, silane coupling agent modified nano-alumina 3.7%, hollow mesoporous silica microspheres 3.3%, silane coupling agent KH560 0.2% .

[0025] Among them, the water-based epoxy resin emulsion is AB-EP-20 from Zhejiang Anbang.

[0026] Component B is composed of the following raw materials in weight percentage: tetraethylenepentamine 80%, deionized water 20%.

[0027] The preparation method of the modifier for the above-mentioned high-strength asphalt concrete comprises the following steps:

[0028] (1) Preparation of component A: Weigh water-based epoxy resin emulsion, nano-alumina, hollow mesoporous silica microspheres, and silane coupling agent KH560 according to the formula ratio, and then tra...

Embodiment 2

[0032] A modifier for high-strength asphalt concrete, consisting of component A and component B, wherein the mass ratio of component A to component B is 1:0.3;

[0033] Component A is composed of the following raw materials in parts by weight: water-based epoxy resin emulsion 96%, nano-alumina 2%, hollow mesoporous silica microspheres 1.9%, silane coupling agent KH560 0.1%;

[0034] Among them, the water-based epoxy resin emulsion is AB-EP-20 from Zhejiang Anbang.

[0035] Component B is composed of the following raw materials in weight percentage: 85% of diethylenetriamine, 15% of deionized water.

[0036] The preparation method of the modifier for the above-mentioned high-strength asphalt concrete comprises the following steps:

[0037] (1) Preparation of component A: Weigh water-based epoxy resin emulsion, nano-alumina, hollow mesoporous silica microspheres, and silane coupling agent KH560 according to the formula ratio, and then transfer the above-mentioned raw materials ...

Embodiment 3

[0041] A modifier for high-strength asphalt concrete, consisting of component A and component B, wherein the mass ratio of component A to component B is 1:0.1;

[0042] Component A is composed of the following raw materials in parts by weight: water-based epoxy resin emulsion 90%, nano-alumina 4.8%, hollow mesoporous silica microspheres 5%, silane coupling agent KH550 0.2%;

[0043] Wherein, the water-based epoxy resin emulsion is or 3520-WY-55 of Hexion Chemical Co., Ltd.

[0044] Component B is composed of the following raw materials in weight percentage: 70% of triethylenetetramine and 30% of deionized water.

[0045] The preparation method of the above-mentioned modifier for high-strength asphalt concrete is the same as in Example 1.

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Abstract

The invention provides a modifier applied to high-strength asphalt concrete as well as preparation and application thereof. The modifier applied to the high-strength asphalt concrete comprises a component A and a component B, wherein the mass ratio of the component A to the component B is 1 to (0.1-0.3). The component A is prepared from the following raw materials in percentage by weight: 90-96% of a waterborne epoxy resin emulsion, 2-6% of nano aluminum oxide, 1.5-5% of hollow mesoporous silicon dioxide microspheres and 0.1-0.3% of a silane coupling agent. The component B is prepared from thefollowing raw materials in percentage by weight: 70-85% of a waterborne epoxy curing agent and 15-30% of deionized water. The prepared modifier can be used for forming a stable cross-linked space mesh structure in the asphalt concrete; the structure stress state of the asphalt concrete is improved; the strength, the stability, the rut resistance and the cracking resistance of the asphalt concretecan be effectively improved.

Description

technical field [0001] The invention relates to the technical field of asphalt concrete, in particular to a modifier for high-strength asphalt concrete and its preparation and application. Background technique [0002] With the development of highway transportation, the traffic volume is increasing day by day, the proportion of large-scale vehicles, heavy-loaded and overloaded vehicles is gradually increasing, and the requirements for road surfaces are getting higher and higher. my country has a vast territory and large climate differences. Ordinary asphalt has been difficult to meet the requirements of road use. The rutting and moving permanent deformation of the asphalt pavement under the action of vehicle load in hot season, the reflection of low temperature cracking and semi-rigid base cracking in winter Water damage such as cracks, potholes and looseness formed during the rainy season and spring melt season often occurs in new roads. In order to solve this problem, the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B24/42
CPCC04B40/0039C04B24/281C04B14/303C04B14/06C04B24/42C04B26/26
Inventor 黄龙许召圣梁正孟祥银
Owner 和县祥龙沥青混凝土有限公司
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