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A kind of quick-drying mist sealing layer material and its preparation method and application

A fog-sealing material and quick-drying technology, which can be used in buildings, roads, and on-site coagulation pavements, etc., can solve the problem of long road closure and maintenance time, and achieve the effect of shortening the maintenance time.

Active Publication Date: 2018-03-06
EAST CHINA UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problem of long road closure maintenance time of the existing fog seal material in the above-mentioned prior art, the present invention aims to provide a quick-drying fog seal material and its preparation method and use

Method used

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  • A kind of quick-drying mist sealing layer material and its preparation method and application
  • A kind of quick-drying mist sealing layer material and its preparation method and application
  • A kind of quick-drying mist sealing layer material and its preparation method and application

Examples

Experimental program
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Effect test

Embodiment 1

[0027] Asphalt regeneration agent: composed of 197g of deasphalted oil, 99g of heavy aromatic oil and 29g of hydroxybenzoate;

[0028] Organic solvent: ethanol 550g

[0029] Co-solvent: N-Methylpyrrolidin 125g

[0030] The quick-drying mist sealing material is prepared by the following preparation method:

[0031] S1, preparation of asphalt regenerant

[0032] Stir the deasphalted oil, heavy aromatic oil and hydroxybenzoic acid ester according to the proportion at 70°C for 1 hour and mix them evenly to obtain the asphalt regenerant, which is kept warm for later use.

[0033] S21, configure compound solvent

[0034] Weigh quantitative ethanol and co-solvent at room temperature and mix uniformly to obtain a compound solvent.

[0035] S22, preparing quick-drying mist sealant material

[0036] Start the agitator, continuously add the bitumen regenerant to the compound solvent, and stir for 10 minutes to obtain 1 kg of quick-drying mist sealing material.

Embodiment 2

[0038] Asphalt rejuvenator: composed of 271g of deasphalted oil, 91g of heavy aromatic oil and 18g of hydroxybenzoate;

[0039] Organic solvent: ethanol 460g

[0040] Co-solvent: N-Methylpyrrolidin 160g

[0041] The quick-drying mist sealing material is prepared by the following preparation method:

[0042] S1, preparation of asphalt regenerant

[0043] Stir the deasphalted oil, heavy aromatic oil and hydroxybenzoic acid ester according to the ratio at 60°C for 1 hour and mix them evenly to obtain the asphalt regenerant, which is kept warm for later use.

[0044] S21, configure compound solvent

[0045] Weigh quantitative ethanol and co-solvent at room temperature and mix uniformly to obtain a compound solvent.

[0046] S22, preparing quick-drying mist sealant material

[0047] Start the agitator, continuously add the bitumen regenerant to the compound solvent, and stir for 10 minutes to obtain 1 kg of quick-drying mist sealing material.

Embodiment 3

[0049] Asphalt regenerant: composed of 273g of deasphalted oil, 91g of heavy aromatic oil and 36g of paraben;

[0050] Organic solvent: ethanol 450g

[0051] Co-solvent: N-Methylpyrrolidin 150g

[0052] The quick-drying mist sealing material is prepared by the following preparation method:

[0053] S1, preparation of asphalt regenerant

[0054] Stir the deasphalted oil, heavy aromatic oil and hydroxybenzoic acid ester according to the ratio at 60°C for 1 hour and mix them evenly to obtain the asphalt regenerant, which is kept warm for later use.

[0055] S21, configure compound solvent

[0056] Weigh quantitative ethanol and co-solvent at room temperature and mix uniformly to obtain a compound solvent.

[0057] S22, preparing quick-drying mist sealant material

[0058] Start the agitator, continuously add the bitumen regenerant to the compound solvent, and stir for 10 minutes to obtain 1 kg of quick-drying mist sealing material.

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Abstract

The invention relates to a quick-dry fog sealing layer material, which is formed by the following components: 20wt percent to 40wt percent of asphalt-recycling agent, and 5wt percent to 25wt percent of complex solubilizer, wherein the asphalt-recycling agent is formed by deasphalted oil, heavy aromatic oil and additives; the additives are selected from at least one of the following compounds: dibutyl phthalate, epoxidized soybean oil, chlorinated methoxy fatty acid ester and parabens; the mass ratio of the deasphalted oil to the heavy aromatic oil to the additives is 1:0.1 to 1:0.05 to 0.5. The invention also relates to a preparation method and application of the quick-dry fog sealing layer material. According to the quick-dry fog sealing layer material, the heavy aromatic oil and the like during the petroleum refining process are utilized to form the asphalt-recycling agent so as to obtain the fog sealing layer material with high additional value, so that the quick-dry fog sealing layer material can play a role in preventing aging and regenerating on aged asphalt pavements. In addition, according to the quick-dry fog sealing layer material provided by the invention, the maintenance time at low temperature is only 2 to 4h, which is shortened by over half the time for sealing and maintaining of the existing fog sealing layer material.

Description

technical field [0001] The invention relates to a mist seal layer used for asphalt pavement maintenance, and more particularly to a quick-drying mist seal layer material and its preparation method and application. Background technique [0002] By the end of 2014, the total mileage of expressways in my country had reached 111,900 kilometers, and the total mileage of national highways had reached 4.46 million kilometers. When the asphalt pavement is exposed to various external conditions (for example, high temperature, rain, friction, etc.) for a long time, it is prone to aging, that is, a series of changes occur in the chemical and physical properties of the asphalt pavement. In terms of chemical properties, as the aging progresses, the small molecular components in the asphalt pavement continue to undergo polycondensation reactions, developing towards the direction of macromolecular asphaltenes. This change in chemical properties is reflected in changes in physical properti...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L91/00C08K5/134C08K5/12C08K5/10E01C7/35
CPCC08L91/00C08L2205/025C08L2205/03E01C7/353C08K5/1345C08K5/12C08K5/10
Inventor 查如俊凌昊陈琪赵亮
Owner EAST CHINA UNIV OF SCI & TECH
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