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Warm-mixing rubber asphalt warm-mixing agent as well as preparation method and application thereof

A technology of rubber asphalt and warm mix agent, applied in the field of warm mix rubber asphalt, can solve the problems of equipment corrosion and affect the formation speed of the strength of the mixture, and achieve the effects of slowing down corrosion, improving road performance, and enhancing high and low temperature performance.

Pending Publication Date: 2022-03-25
JIANGSU BAOLI INT INVESTMENT CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the more moisture introduced by emulsification will not only lead to serious corrosion of equipment; secondly, the non-volatile moisture will seriously affect the strength formation speed of the mixture, such as patents CN102795801A, CN104609771A and CN109294254A, etc.
Therefore, almost all commercial warm mix products at this stage will not only affect the low-temperature performance, anti-skid performance, fatigue resistance, high-temperature performance and anti-aging performance of asphalt and asphalt mixture to varying degrees, but may also affect asphalt and asphalt. The production cost, production equipment and mixing molding process of the mixture put forward strict requirements

Method used

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  • Warm-mixing rubber asphalt warm-mixing agent as well as preparation method and application thereof

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preparation example Construction

[0019] The preparation method of above-mentioned warm mixing agent may further comprise the steps:

[0020] (1) Add 100 parts of distilled water into the container, then stir and heat to 50℃~70℃;

[0021] (2) Add 2 to 22 parts of sodium lauryl sulfate, 1 to 16 parts of cetyltrimethylammonium bromide, and 5 to 25 parts of amphoteric imidazoline surfactants to the distilled water in step (1). 16-32 parts of myristic acid, 8-32 parts of sodium fatty alcohol ether sulfate, 4-24 parts of linolenic acid;

[0022] (3) Stir the mixture in step (2) uniformly for 10-20 minutes to obtain the warm mixing agent.

[0023] The application of the above-mentioned warm mix agent is to add it to asphalt to prepare warm mix asphalt. Specifically, when the warm mix agent is directly mixed into rubber asphalt for production, the mass fraction of the warm mix agent added is the base asphalt in rubber asphalt 2% to 4% of the mass.

Embodiment 1

[0025] Preparation method and application of warm-mix rubber asphalt warm-mix agent. The preparation steps of the warm mixing agent include: adding 100 parts of distilled water into the container, then stirring and heating to 50°C, then sequentially adding 10 parts of sodium lauryl sulfate, hexadecyl trimethyl 15 parts of ammonium bromide, 20 parts of amphoteric imidazoline surfactant, 25 parts of myristic acid, 10 parts of fatty alcohol ether sodium sulfate, and 20 parts of linolenic acid. Stir the above mixture uniformly for 10 minutes to obtain the warm mixing agent. Then, the prepared warm mix agent was mixed into the rubber asphalt, the blending mass of the warm mix agent was 2% of the base asphalt mass in the rubber asphalt, and the warm mix rubber asphalt was obtained after stirring at 140°C for 15 minutes.

Embodiment 2

[0027] Preparation method and application of warm-mix rubber asphalt warm-mix agent. The preparation steps of the warm mixing agent include: adding 100 parts of distilled water into the container, then stirring and heating to 60°C, then sequentially adding 15 parts of sodium lauryl sulfate, hexadecyl trimethyl 10 parts of ammonium bromide, 15 parts of amphoteric imidazoline surfactant, 30 parts of myristic acid, 15 parts of fatty alcohol ether sodium sulfate, and 15 parts of linolenic acid. Stir the above mixture uniformly for 15 minutes to obtain the warm mixing agent. Then, the prepared warm mix agent was mixed into the rubber asphalt, the blending quality of the warm mix agent was 2.5% of the mass of the base asphalt in the rubber asphalt, and the warm mix rubber asphalt was obtained after stirring at 150° C. for 10 minutes.

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Abstract

The invention discloses a warm mixing rubber asphalt warm mixing agent as well as a preparation method and application thereof. The warm mixing agent comprises the following components in parts by mass: 2-22 parts of lauryl sodium sulfate, 1-16 parts of hexadecyl trimethyl ammonium bromide, 5-25 parts of an amphoteric imidazoline surfactant, 16-32 parts of myristic acid, 8-32 parts of fatty alcohol ether sodium sulfate, 4-24 parts of linolenic acid and 100 parts of distilled water. The warm mixing agent is simple in preparation process, safe and easy to operate, free of harmful gas or pollutants in the whole process and high in yield, the mixing temperature, apparent viscosity, energy consumption loss and harmful gas emission of rubber asphalt can be practically reduced, the anti-aging performance and low-temperature performance of the rubber asphalt can be enhanced, in addition, corrosion of warm mixing equipment can be effectively slowed down, and the service life of the warm mixing agent is prolonged. Energy is saved, environment is protected, and practicability is high.

Description

technical field [0001] The invention belongs to the technical field of warm-mix rubber asphalt, and in particular relates to a warm-mix rubber asphalt warm-mix agent and a preparation method and application thereof. Background technique [0002] According to incomplete statistics, my country's expressway has exceeded 160,000 kilometers, and it is growing continuously. Therefore, the maintenance and upgrading of highways in the future will become an important development direction of highway construction. In addition, under the current development environment of "carbon peaking and carbon neutrality", how to realize the sustainable development of green energy saving, low carbon and environmental protection in road construction will be a huge challenge for the development of pavement materials in the future. Although rubber asphalt utilizes a large number of waste tires, it has significantly improved the performance of asphalt pavement. However, the higher preparation temper...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L95/00C08L19/00C08K5/00C08K5/41C08K5/19C08K5/3445C08K5/09
CPCC08L95/00C08L2207/24C08L2555/24C08L2555/34C08L19/003C08K5/00C08K5/41C08K5/19C08K5/3445C08K5/09Y02A30/30
Inventor 陈先华周文彬邓文华陶红张龙生武精科
Owner JIANGSU BAOLI INT INVESTMENT CO LTD
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