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A kind of preparation method and application of resin asphalt emulsion that improves the adhesion of acidic stone material and asphalt

A technology of resin asphalt and adhesion, which is applied in the field of preparation of resin asphalt emulsion, can solve the problems of limited adhesion ability and poor high temperature stability of anti-stripping agent, and achieve excellent adhesion performance, excellent adhesion performance and low cost. Effect

Active Publication Date: 2020-06-12
HOHAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the anti-stripping agent has poor high-temperature stability and limited adhesion to acidic stones

Method used

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  • A kind of preparation method and application of resin asphalt emulsion that improves the adhesion of acidic stone material and asphalt
  • A kind of preparation method and application of resin asphalt emulsion that improves the adhesion of acidic stone material and asphalt

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] (1) Preparation of surface treatment agent

[0022] Mix 0.1 parts by mass of coupling agent KH-792, 5 parts by mass of 100-mesh quartz sand, and 20 parts by mass of water, and ultrasonically disperse for 10 minutes to obtain a quartz sand dispersion.

[0023] Add 5 parts by mass of cationic epoxy resin emulsion, 5 parts by mass of water-based epoxy curing agent polyamine and 20 parts by mass of cationic emulsified asphalt to the prepared quartz sand dispersion, and stir mechanically at room temperature for 0.5h to obtain a surface Treatment agent resin bitumen emulsion.

[0024] (2) Application of surface treatment agent

[0025] Heating the granite to 180°C, spraying the surface treatment agent resin asphalt emulsion with a mass percentage of 1% of the granite onto the surface of the granite, baking at 180°C for 10 seconds, and obtaining the surface-treated stone after drying.

[0026] The adhesion level between stone and asphalt before and after surface treatment wa...

Embodiment 2

[0028] (1) Preparation of surface treatment agent

[0029] After mixing 1 mass part of coupling agent KH-560, 10 mass parts of 400-mesh bentonite, 15 mass parts of 200-mesh white carbon black, and 200 mass parts of water, ultrasonically disperse for 30 minutes to obtain a composite of bentonite and white carbon black. Dispersions.

[0030] Add the nonionic epoxy resin emulsion of 30 mass parts, the phenalkamine of 25 mass parts and the nonionic emulsified asphalt of 100 mass parts in the composite dispersion liquid of the bentonite of preparation and white carbon black, mechanically stir 4h at room temperature, A surface treatment agent resin bitumen emulsion is obtained.

[0031] (2) Application of surface treatment agent

[0032] Heat the granite to 200°C, then spray the surface treatment agent resin asphalt emulsion with a mass percentage of 10% of the granite onto the surface of the granite, bake at 150°C for 20 seconds, and obtain the surface-treated stone after drying....

Embodiment 3

[0035] (1) Preparation of surface treatment agent

[0036] Mix 2 parts by mass of coupling agent KH-602, 35 parts by mass of 200-mesh white carbon black, and 250 parts by mass of water, and ultrasonically disperse for 5 minutes to obtain a white carbon black dispersion.

[0037] Add 50 parts by mass of anionic epoxy resin emulsion, 50 parts by mass of polyamide and 100 parts by mass of anionic emulsified pitch to the prepared silica dispersion, and stir mechanically at room temperature for 0.5h to obtain a surface treatment agent resin asphalt emulsion.

[0038] (2) Application of surface treatment agent

[0039] Heat the sandstone to 150°C, then spray a surface treatment agent with a mass percentage of 0.3% of the sandstone onto the surface of the sandstone, bake at 200°C for 5 seconds, and obtain the surface-treated stone after drying.

[0040] The adhesion between stone and asphalt was tested by water boiling method, and the test results are shown in Table 1. The water b...

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Abstract

The invention discloses a preparation method and application of a resin asphalt emulsion for improving the adhesion between acid stone material and asphalt, and belongs to the technical field of asphalt pavement materials in road engineering. The preparation method comprises the following steps: weighing coupling agent, inorganic filler and water, mixing with water, and ultrasonically dispersing to obtain inorganic filler dispersion; adding water-based epoxy resin, water-based epoxy curing agent and emulsifying agent to the prepared inorganic filler dispersion asphalt, and stirred at room temperature to obtain the resinous asphalt emulsion. Then the prepared resin asphalt emulsion is sprayed on the surface of the acid stone, and the surface-treated stone can be obtained after drying. The acid stone surface treatment material of the present invention has the advantages of high temperature resistance, high adhesion strength and long-lasting effect, and can be used to treat acid stone such as granite, which can significantly improve the adhesion between asphalt and stone, and improve the water damage resistance of asphalt mixture. Prolonging the service life of the pavement will help to obtain local materials in areas rich in acid stones, and reduce the paving cost of asphalt pavement in this area.

Description

technical field [0001] The invention belongs to the technical field of asphalt pavement materials for road engineering, and in particular relates to a preparation method and an application of a resin asphalt emulsion for improving the adhesion between acid stone materials and asphalt. Background technique [0002] Due to the extensive mining and use of alkaline stones such as limestone, there are fewer and fewer high-quality stones used for paving asphalt pavements. Granite, quartzite, sandstone and other acidic stone materials have high strength and good wear resistance, and can give full play to the embedding and anti-wear effects between aggregates. However, the adhesion between acidic stone and asphalt is poor, and the water damage resistance of the mixture is poor. Under the action of water, the asphalt film is prone to fall off, which seriously affects the service life of the asphalt pavement, which also makes the use of acidic stone extremely restricted. big limit. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L95/00C08L63/00C08K9/06C08K3/36C08K3/34C08J3/03C04B41/50
CPCC04B41/009C04B41/5035C04B41/5037C08J3/03C08J2395/00C08J2463/00C08K3/346C08K3/36C08K9/06C04B14/048C04B14/04C04B14/06C04B41/4853C04B41/478C04B41/46C04B41/4539C04B41/4922C04B41/4892
Inventor 司晶晶于新徐鹏宇卞加前董夫强秦成林吉泽中李洋
Owner HOHAI UNIV
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