Emulsified asphalt and preparation method thereof

A technology for emulsified asphalt and bitumen, which is used in building components, building insulation materials, buildings, etc., and can solve problems such as stone mismatch, easy layering and precipitation, and insufficient stone cohesion.

Inactive Publication Date: 2019-04-05
CHAMBROAD CHEM IND RES INST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But at this stage, the emulsified asphalt is easy to layer and precipitate, and it is easy to segregate if the time is too long, resulting in insufficient adhesion with the stone, and even a phenomenon that it does not match the stone.

Method used

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  • Emulsified asphalt and preparation method thereof
  • Emulsified asphalt and preparation method thereof

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preparation example Construction

[0025] Aiming at the problem of poor stability of emulsified asphalt in the prior art, this application provides an emulsified asphalt and a preparation method thereof. The emulsified asphalt is added with a compound cationic emulsifier and a nonionic emulsifier to make the emulsified asphalt obtained have a relatively high good stability. Specifically, the emulsified asphalt is prepared from raw materials comprising the following components:

[0026] Asphalt 50wt% ~ 60wt%;

[0027] Compound emulsifier 1.5wt% ~ 4.5wt%;

[0028] remaining water;

[0029] The compound emulsifier consists of 1wt%-3wt% cationic emulsifier and 0.5wt%-1.5wt% nonionic emulsifier.

[0030] In the emulsified asphalt, the asphalt is the base material, which is the asphalt well known to those skilled in the art, and there is no particular limitation in this application. The content of the asphalt is 50wt%-60wt%; in some specific embodiments, the content of the asphalt is 52wt%-58wt%.

[0031] The co...

Embodiment 1

[0046] The emulsified asphalt is prepared from the following components by mass percentage: 60% asphalt, 2% compound emulsifier and the rest water;

[0047] Described complex emulsifier comprises 0.5% cationic emulsifier, 0.5% nonionic emulsifier; Described nonionic emulsifier is polyoxyethylene octylphenol ether (OP-10), and described cationic emulsifier The agent is a quaternary ammonium salt;

[0048] The emulsified asphalt is prepared by the following method:

[0049] Dissolve the water and compound emulsifier evenly according to the ratio, and heat to 50-60°C to obtain soap liquid; heat the asphalt to 135°C-145°C for later use;

[0050] Preheat the colloid mill, add the soap solution to the colloid mill and circulate for 1-2 minutes, add the molten asphalt to the colloid mill, and stir at a high speed for 1-2 minutes to form emulsified asphalt, wherein the asphalt is about Added within 1min.

Embodiment 2

[0052] Emulsified asphalt is prepared from the following components in mass percentage: 60% asphalt, 2.5% compound emulsifier and the rest water;

[0053] Described complex emulsifier comprises 2% cationic emulsifier, 0.5% nonionic emulsifier; Described nonionic emulsifier is polyoxyethylene octylphenol ether (OP-10), and described cationic emulsifier The agent is a quaternary ammonium salt.

[0054] The emulsified asphalt is prepared by the following method:

[0055] Dissolve the water and compound emulsifier evenly according to the ratio, and heat to 50-60°C to obtain soap liquid; heat the asphalt to 135°C-145°C for later use;

[0056] Preheat the colloid mill, add the soap solution to the colloid mill and circulate for 1-2 minutes, add the molten asphalt to the colloid mill, and stir at a high speed for 1-2 minutes to form emulsified asphalt, wherein the asphalt is about Added within 1min.

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Abstract

The invention provides emulsified asphalt which is prepared from, 50wt%-60wt% of asphalt, 1.5wt%-4.5wt% of built emulsifiers and the balance water, wherein the built emulsifiers comprise 1wt%-3wt% ofcationic emulsifiers and 0.5wt%-1.5wt% of non-ionic emulsifiers. The invention further provides a preparation method of the emulsified asphalt. According to the emulsified asphalt, as the built emulsifiers are added, the emulsified asphalt has superior storage stability, and the performance of the emulsified asphalt meets PC-2 type emulsified asphalt standard requirements in JTG-F40-2004 highway asphalt pavement construction technical specifications.

Description

technical field [0001] The invention relates to the technical field of asphalt production, in particular to an emulsified asphalt and a preparation method thereof. Background technique [0002] Asphalt can be divided into petroleum asphalt, coal tar pitch and natural asphalt. Asphalt is a solid or semi-solid viscous substance at room temperature, with good adhesion and waterproof properties, and is mainly used in asphalt pavement and building waterproofing. Traditional asphalt roads need to be constructed at high temperatures. Excessive asphalt temperature can easily cause burns to the human body, and asphalt smoke generated by high temperature will cause great harm to the human body and the environment. In response to this drawback, it is becoming a general trend to seek a road asphalt that can be constructed at room temperature or low temperature, so emulsified asphalt technology has emerged as the times require. Emulsified asphalt is safer, more environmentally friendly ...

Claims

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Application Information

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IPC IPC(8): C08L95/00C08J3/03
CPCC08J3/03C08J2395/00
Inventor 孙美丽马韵升祁聪李启仲徐卫望
Owner CHAMBROAD CHEM IND RES INST CO LTD
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