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Emulsification method of asphalt regenerant

A technology of asphalt regenerant and emulsifier, applied in the polymer field, can solve the problems of construction workers' health effects, viscosity of asphalt regenerant, environmental pollution of waste gas, etc., and achieve the effects of good applicability, improved effective thickness and strong permeability.

Active Publication Date: 2018-10-02
南京诚赢集约建材科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, currently the asphalt rejuvenators on the market are relatively viscous and need to be heated to high temperature during use. Especially in winter construction, the asphalt rejuvenator needs to be heated and kept warm for a long time, and the process of heating to high temperature will cause A large amount of exhaust gas is produced, which pollutes the environment and has a certain impact on the health of construction workers. At the same time, there are potential safety hazards and high costs.

Method used

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  • Emulsification method of asphalt regenerant
  • Emulsification method of asphalt regenerant

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Step 1) Mix 7 parts by weight of asphalt regenerant with 38 parts by weight of hot water at 60°C, and keep it warm at 60°C for later use.

[0025] Step 2) Send 45 parts by weight of high-pressure cold water and 4 parts by weight of the mixture of step 1) to the expansion tube respectively, and the mixture of asphalt regeneration agent and hot water in step 1) expands rapidly in the expansion tube after encountering high-pressure cold water , the expansion time is 10s, the pressure of high-pressure cold water is 0.6Mpa, and the water flow rate is 6L / min.

[0026] Step 3) Add 6 parts by weight of emulsifier to the expanded mixture obtained in step 2), and stir vigorously until the mixture is evenly mixed, the stirring speed is 450-500 rpm, and the stirring time is 40-50s.

[0027] Step 4) Inhale the mixture obtained in step 3) into the storage tank through a circulating pump and perform circulating stirring at a stirring rate of 80 rpm until the mixture has no bubbles, no...

Embodiment 2

[0029] Step 1) Mix 7 parts by weight of asphalt regenerant with 38 parts by weight of hot water at 70°C, and keep it warm at 70°C for later use.

[0030] Step 2) Transport 45 parts by weight of high-pressure cold water and 4 parts by weight of the mixture of step 1) to the same pipeline, and the mixture of asphalt regeneration agent and hot water in step 1) expands rapidly in the pipeline after encountering high-pressure cold water , the expansion time is 5s, the pressure of high-pressure cold water is 0.8MPa, and the water flow rate is 8L / min.

[0031] Step 3) Add 6 parts by weight of emulsifier to the expanded mixture obtained in step 2), and stir vigorously until the mixture is evenly mixed. The stirring speed is 500-550 rpm, and the stirring time is 30-45s.

[0032] Step 4) Inhale the mixture obtained in step 3) into the storage tank through a circulating pump and perform circulating stirring at a stirring rate of 85 rpm until the mixture has no bubbles, no segregation, no...

Embodiment 3

[0034] Step 1) Mix 7 parts by weight of asphalt regenerant with 38 parts by weight of hot water at 65°C, and keep it warm at 65°C for later use.

[0035] Step 2) transporting 45 parts by weight of high-pressure cold water and 4 parts by weight of the mixture of step 1) to the same pipeline, the mixture of asphalt regeneration agent and hot water in step 1) expands rapidly in the pipeline after encountering high-pressure cold water, The expansion time is 8s, the pressure of high-pressure cold water is 0.7MPa, and the water flow rate is 7L / min.

[0036] Step 3) Add 6 parts by weight of emulsifier to the expanded mixture obtained in step 2), and stir vigorously until the mixture is evenly mixed. The stirring speed is 450-550 rpm, and the stirring time is 40-50s.

[0037] Step 4) Inhale the mixture obtained in step 3) into the storage tank through a circulating pump and perform circulating stirring at a stirring rate of 90 rpm until the mixture has no bubbles, no segregation, no f...

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Abstract

The invention discloses an emulsification method of a plant-mixed split spraying type asphalt recycling agent. The emulsification method comprises the following steps: (1) mixing the asphalt recycling agent with hot water with the temperature of 60 to 70 DEG C, and preserving the heat of 60 to 70 DEG C for later use; (2) respectively conveying high-pressure cold water and a mixture obtained in the step (1) into the same pipeline, wherein the mixture of the asphalt recycling agent and the hot water in the step (1) is quickly swelled in the pipeline immediately when meeting the high-pressure cold water; (3) adding an emulsifier into the swelled mixture obtained in the step (2), and intensively stirring till the emulsifier and the swelled mixture are uniformly mixed; (4) sucking the mixture obtained in the step (3) into a storage tank through a circulating pump, performing circulating stirring, and stopping stirring till the mixture is free of foams, separation, freezing and demulsification. Therefore, the plant-mixed split spraying type asphalt recycling agent is relatively high in applicability and flowability, cannot be impacted by the temperature of the season, is convenient to mix and stir, can save much cost and is environment-friendly and energy-saving.

Description

technical field [0001] The invention relates to the field of macromolecules, in particular to an emulsification method of asphalt regenerant. Background technique [0002] With the development of our country's economy and society, our country's highway transportation has also developed rapidly. With the continuous increase of highway mileage, the road grade is also constantly improving, and most of my country's high-grade highways are asphalt pavement. [0003] During the course of use, the asphalt pavement will gradually harden and age under the action of driving load and natural factors. Compared with the original asphalt, the aging asphalt has lower penetration and ductility, resulting in cracks, looseness and other damage to the pavement. With the rapid development of highway transportation, a large number of roads have entered the period of major and medium repairs, and a large number of old roads need to be dug and milled. Under this situation, a large amount of hig...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L95/00
CPCC08L95/00C08L2555/34Y02P20/10
Inventor 陈贤
Owner 南京诚赢集约建材科技有限公司