A kind of asphalt concrete pavement protective agent and its preparation method and application

An asphalt concrete and protective agent technology, applied in asphalt coatings, coatings, etc., can solve the problems of difficult to achieve the protective function of asphalt concrete pavement, affect the service life of asphalt concrete, etc. Strong penetration and filling repair ability, the effect of prolonging the life of the pavement

Active Publication Date: 2021-07-09
HEBEI CONSTR GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in actual engineering applications, asphalt concrete pavements are often exposed to various harsh environments, such as the intrusion of corrosive media around the environment, changes in ambient temperature and humidity, freeze-thaw cycle damage, and parts are often subject to heavy load wear, etc. External conditions will seriously affect the service life of asphalt concrete
Therefore, it is difficult to achieve the protection function of asphalt concrete pavement by a simple method of coating protection or by repairing and protecting after damage occurs.

Method used

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  • A kind of asphalt concrete pavement protective agent and its preparation method and application
  • A kind of asphalt concrete pavement protective agent and its preparation method and application

Examples

Experimental program
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Effect test

Embodiment 1

[0035] An asphalt concrete pavement protective agent, comprising the following components in weight percentage: graphite powder: 4.0%, oxidized asphalt blending emulsion: 86.05%, anhydrous isopropanol: 0.05%, nonylphenol polyethylene glycol ether: 0.05% , ammonium persulfate: 0.85%, methyltrimethoxysilane: 5.0%, Stoddard solvent 4.0%: 100kg sample was prepared for trial mixing.

[0036] The first step, weigh 86.05kg of oxidized asphalt blending emulsion and place it in the reactor, stir at low speed (25rpm), add graphite powder slowly, the amount of one time mixing can not exceed the total amount of 0.8kg, gradually increase the stirring speed to 1500rpm, stir for 10 Minutes, the graphite powder is evenly dispersed in the emulsion, then slowly add the graphite powder, continue to stir for 10 minutes, repeat the above process until all the graphite powder is evenly dispersed in the emulsion. Put the uniformly dispersed emulsion in a sealed container and let it cool for 24 hours...

Embodiment 2

[0041] An asphalt concrete pavement protective agent, comprising the following components in weight percentage: graphite powder: 5.0%, oxidized asphalt blending emulsion: 81.82%, anhydrous isopropanol: 0.08%, nonylphenol polyethylene glycol ether: 0.10% , ammonium persulfate: 0.50%, methyltrimethoxysilane: 8.0%, Stoddard solvent 4.5%: 100kg sample was prepared for trial mixing.

[0042] The first step, weigh 81.82kg of oxidized asphalt blend emulsion and place it in the reactor, stir at low speed (25rpm), slowly add graphite powder, the amount of one-time mixing should not exceed the total amount of 1.0kg, gradually increase the stirring speed to 1500rpm, stir for 10 Minutes, the graphite powder is evenly dispersed in the emulsion, then slowly add the graphite powder, continue to stir for 10 minutes, repeat the above process until all the graphite powder is evenly dispersed in the emulsion. Place the uniformly dispersed emulsion in a sealed container and let it cool for 24 hou...

Embodiment 3

[0047] An asphalt concrete pavement protective agent, comprising the following components in weight percentage: graphite powder: 4.5%, oxidized asphalt blending emulsion: 79.7%, anhydrous isopropanol: 0.10%, nonylphenol polyethylene glycol ether: 0.15% , ammonium persulfate: 0.55%, methyltrimethoxysilane: 10.0%, Stoddard solvent 5.0%: 100kg sample was prepared for trial mixing.

[0048] The first step, weigh 79.7kg of oxidized pitch blending emulsion and place it in the reactor, stir at a low speed (25rpm), slowly add graphite powder, the amount of one-time mixing cannot exceed the total amount of 0.9kg, gradually increase the stirring speed to 1500rpm, and stir for 10 Minutes, the graphite powder is evenly dispersed in the emulsion, then slowly add the graphite powder, continue to stir for 10 minutes, repeat the above process until all the graphite powder is evenly dispersed in the emulsion. Place the uniformly dispersed emulsion in a sealed container and let it cool for 24 h...

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Abstract

The invention relates to an asphalt concrete pavement protective agent and its preparation method and application. The protective agent comprises the following components in weight percent: graphite powder 4.0-5.5; oxidized asphalt blend emulsion 79.7-86.05; defoamer 0.05-0.10; Wetting and dispersing agent 0.05~0.15; Stabilizer 0.50~0.85 Methyltrimethoxysilane 5.0~10.0; Stoddard solvent 4.0~5.5, added when newly pouring asphalt concrete to achieve curing function. Compared with the prior art, the present invention has the advantages of simple production process, low cost, outstanding protective effect, non-toxic and non-polluting, realizes the function of curing agent in the initial stage of asphalt concrete pouring, and exerts its protective agent function during the use of the road surface, greatly It greatly improves the ability of asphalt concrete to resist the erosion of various media and prolongs the service life of asphalt concrete, which is an environmentally friendly building material.

Description

technical field [0001] The invention relates to a material in the technical field of construction engineering and its preparation method and construction application, in particular to an asphalt concrete road surface protective agent and its preparation method and application. Background technique [0002] Asphalt concrete is the most important pavement material of expressway in our country, and it plays a huge role in the construction of modern traffic engineering. Usually, asphalt concrete is a mixture formed by adequate mixing of an appropriate amount of asphalt material and a certain grade of mineral aggregate, and the mixture is paved and rolled into shape. However, due to the porous structure of the asphalt concrete pavement, some rainwater can easily seep into the interior, coupled with the sun's ultraviolet radiation and the possible freeze-thaw cycle in the north, the binder gradually loses its cohesive force, the aggregate loosens, and the pavement becomes loose. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D195/00C09D7/61C09D7/63C04B41/65
Inventor 梁志通靳玉川王立坤王文剑董海洋王海莲张金钢刘水洋王旭贾东伟杨思彬
Owner HEBEI CONSTR GRP CO LTD
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