Super-viscous wear-resistant composite modified emulsified asphalt thin overlay material and preparation method thereof

An emulsified asphalt and composite modification technology is applied in the field of super-viscous and wear-resistant composite modified emulsified asphalt thin-layer covering materials and its preparation field, which can solve the problems of poor wear resistance and low bonding strength, and is not easy to achieve. The effect of cracking, good adhesion and durability improvement

Inactive Publication Date: 2020-03-24
CHANGAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing asphalt thin-layer overlay materials are very easy to peel off from the original road surface under the action of driving load, and the bonding strength is low; poor performance

Method used

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  • Super-viscous wear-resistant composite modified emulsified asphalt thin overlay material and preparation method thereof
  • Super-viscous wear-resistant composite modified emulsified asphalt thin overlay material and preparation method thereof
  • Super-viscous wear-resistant composite modified emulsified asphalt thin overlay material and preparation method thereof

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Experimental program
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preparation example Construction

[0030] A method for preparing a super-sticky and wear-resistant composite modified emulsified asphalt thin-layer overlay material, comprising the following steps:

[0031] (1) According to mass percentage, take raw materials: 6-8 parts of modified emulsified asphalt, 0.06-0.16 parts of basalt fiber, 0.3-1.2 parts of rubber powder, 1-3.5 parts of cement, 100 parts of aggregate, 2-4 parts of mineral powder ,spare;

[0032] (2) Pour the aggregate, basalt fiber and rubber powder into the mixer for premixing, and the premixing time is not less than 120s;

[0033] (3) Add the modified emulsified asphalt to the mixer, and the mixing time is not less than 120s, so that the aggregate, basalt fiber and rubber powder are wrapped by the modified emulsified asphalt;

[0034] (4) Stir the cement and mineral powder evenly, pour them into the mixer, and the mixing time is not less than 180s. After the stirring is completed, the ultra-sticky and wear-resistant composite modified emulsified a...

Embodiment 1

[0037] The present embodiment selects raw material and each component mass parts as follows:

[0038]

[0039] Pour the aggregate, basalt fiber and rubber powder into the mixer for premixing for 120s; add the modified emulsified asphalt to the mixer, and mix for 125s, so that the aggregate, basalt fiber and rubber powder are wrapped by the modified emulsified asphalt; cement, The mineral powder is stirred evenly, poured into the mixer, and the mixing time is 180s. After the stirring is completed, the ultra-sticky and wear-resistant composite modified emulsified asphalt thin-layer overlay material can be prepared.

Embodiment 2

[0041] The present embodiment selects raw material and each component mass parts as follows:

[0042]

[0043] Pour the aggregate, basalt fiber and rubber powder into the mixer for premixing for 125s; add the modified emulsified asphalt to the mixer, and mix for 120s, so that the aggregate, basalt fiber and rubber powder are wrapped by the modified emulsified asphalt; cement, The mineral powder is stirred evenly, poured into the mixer, and the mixing time is 185s. After the stirring is completed, the ultra-sticky and wear-resistant composite modified emulsified asphalt thin-layer overlay material can be prepared.

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Abstract

The invention discloses a super-viscous wear-resistant composite modified emulsified asphalt thin overlay material and a preparation method thereof. The super-viscous wear-resistant composite modifiedemulsified asphalt thin overlay material is prepared from emulsified asphalt, basalt fiber, rubber powder, cement, aggregate and mineral powder. The modified emulsified asphalt is prepared from the following components in parts by mass: 6 to 8 parts of modified emulsified asphalt, 0.06 to 0.16 part of basalt fibers, 0.3 to 1.2 parts of rubber powder, 1 to 3.5 parts of cement, 100 parts of aggregate and 2 to 4 parts of mineral powder. The prepared composite modified emulsified asphalt thin overlay material has the characteristics of high adhesion, high wear resistance, easiness in constructionand the like.

Description

technical field [0001] The invention belongs to the technical field of road paving, and in particular relates to a super-sticky and wear-resistant composite modified emulsified asphalt thin-layer overlay material and a preparation method thereof. Background technique [0002] With the rapid development of highway construction in our country, the proportion of asphalt pavement used on highways due to its excellent road performance is also increasing. The design service life of asphalt pavement is about 12 to 15 years. However, due to the influence of external environmental factors and internal structural factors, many asphalt pavements built in the early stage gradually suffered pavement damage, resulting in greatly reduced anti-skid performance and driving comfort. [0003] As a preventive maintenance technology widely used in asphalt pavement, thin-layer asphalt concrete overlay can be used for preventive maintenance of new roads and repair maintenance of damaged pavement, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/04
CPCC04B28/04C04B2111/0075C04B14/14C04B14/28C04B18/22C04B14/4643C04B24/36
Inventor 况栋梁钱羿羽伍思豫叶舟
Owner CHANGAN UNIV
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