Modified emulsified asphalt and preparation method thereof

A technology of emulsified asphalt and modification, which is applied to building components, building insulation materials, buildings, etc. It can solve problems such as increased viscosity, agglomeration, and uneven thickness of brushing, and achieves good adhesion and stable storage The effect of high resistance and short demulsification time

Inactive Publication Date: 2015-02-18
广东道衡建设工程有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, according to the production situation of some emulsified asphalt supply stations, during the storage and long-distance transportation of the currently used emulsified asphalt, the asphalt distributed in the water collides with each other, and it is easy to get rid of the connecting force of the emulsifier, resulting in agglomeration. The emulsified asphalt storage stability is not ideal due to the increase of viscosity, and when it is used for pavement paving, the brushing thickness is uneven, resulting in the pavement condition failing to meet the index requirements
The poor storage stability of emulsified asphalt due to improper selection of emulsifier greatly limits the application range and development of emulsified asphalt technology.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Example 1: The invention provides a modified emulsified asphalt, which consists of the following parts, all of which are parts by weight:

[0031] 6 parts of No. 90 asphalt;

[0032] 5 parts of fatty acid methyl ester polyoxyethylene ether;

[0033] 10 parts of sodium dodecylbenzenesulfonate;

[0034] 2 parts of octadecyl dimethyl benzyl ammonium chloride;

[0035] 8 parts of 1,4-butanediol;

[0036] 3 parts of acrylic acid-styrene copolymer;

[0037] 5 parts of styrene-butadiene copolymer;

[0038] 1 part of polyvinylpyrrolidone;

[0039] 2 parts of polypentyl glycol;

[0040] 20 parts of water.

[0041] The preparation technology of modified emulsified asphalt of the present invention is as follows:

[0042] Add the above components into the colloid mill, and react at a speed of 1500r / min for 10 minutes to generate high shear, so that the components are evenly dispersed, and the modified emulsified asphalt of the present invention is obtained.

Embodiment 2

[0043] Example 2: The invention provides a modified emulsified asphalt, which consists of the following parts, all of which are parts by weight:

[0044] 70 parts of No. 90 asphalt;

[0045] Fatty acid methyl ester polyoxyethylene ether 8 parts;

[0046] 15 parts of sodium dodecylbenzenesulfonate;

[0047] 3 parts of octadecyl dimethyl benzyl ammonium chloride;

[0048] 10 parts of 1,4-butanediol;

[0049] 4 parts of acrylic acid-styrene copolymer;

[0050] 6 parts of styrene-butadiene copolymer.

[0051] 2 parts of polyvinylpyrrolidone;

[0052] 3 parts of polypentyl glycol.

[0053] 25 parts of water.

[0054] The preparation technology of modified emulsified asphalt of the present invention is as follows:

[0055] Put the above components into the colloid mill, and react at a speed of 1800r / min for 20 minutes to generate high shear, so that the components are evenly dispersed, and the modified emulsified asphalt of the present invention is obtained.

Embodiment 3

[0056] Example 3: The invention provides a modified emulsified asphalt, which consists of the following parts, all of which are parts by weight:

[0057] 80 parts of No. 90 asphalt;

[0058] 9 parts of fatty acid methyl ester polyoxyethylene ether;

[0059] 16 parts of sodium dodecylbenzenesulfonate;

[0060] 4 parts of octadecyl dimethyl benzyl ammonium chloride;

[0061] 11 parts of 1,4-butanediol;

[0062] 5 parts of acrylic acid-styrene copolymer;

[0063] 7 parts of styrene-butadiene copolymer;

[0064] 2 parts of polyvinylpyrrolidone;

[0065] 4 parts of polypentyl glycol;

[0066] 30 parts of water.

[0067] The preparation technology of modified emulsified asphalt of the present invention is as follows:

[0068] Add the above components into the colloid mill, and react for 30 minutes at the speed of 2000r / min to generate high shear, so that the components are evenly dispersed, and the modified emulsified asphalt of the present invention is obtained.

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PUM

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Abstract

The invention discloses modified emulsified asphalt and a preparation method thereof, belonging to the technical field of emulsified asphalt. The emulsifier used by the modified emulsified asphalt is formed by a basic emulsifier and a co-emulsifier via compounding, and a certain stabilizer is added to enhance the stability of the emulsified asphalt, so that the finally produced emulsified asphalt is favorable in product property and high in storage stability, and has the characteristics of short demulsification time and favorable blocking property with aggregates when being used for pavement construction projects; and the preparation method of the modified emulsified asphalt is simple to operate, wide in source of raw materials and low in cost.

Description

technical field [0001] The invention relates to an emulsified asphalt, in particular to a modified emulsified asphalt and a preparation method thereof. Background technique [0002] With the substantial increase in the mileage of high-grade highways in my country, the technical conditions of highways have been significantly improved and improved, effectively alleviating the tension in transportation, but overall, the highway infrastructure is still weak, especially the reserve capacity and adaptability Insufficient, relying solely on new construction and total expansion cannot adapt to social and economic development. It is necessary to transform the existing road network through technical transformation and strengthen scientific maintenance management, from the original passive and emergency traditional maintenance methods to Anticipatory and periodic changes in scientific and modern maintenance methods can fully tap the potential of the existing road network in order to mee...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L95/00C08L33/02C08L25/10C08L39/06C08J3/03
Inventor 权栋栋王丽丽魏书同
Owner 广东道衡建设工程有限公司
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