Efficient reduction repairing agent for asphalt pavement, preparation method and application

A technology of asphalt pavement and repair agent, applied in the direction of asphalt coating and coating, which can solve the problems of loose aggregate on the surface of the pavement, slow driving speed and large water seepage coefficient.

Active Publication Date: 2021-11-26
河南金欧特实业集团股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] my country's road construction has entered a stage of rapid development, and as the asphalt pavement built in the early stage increases in service life, under the action of traffic load and various natural factors, the asphalt road gradually ages, and the asphalt road surface becomes rough due to oil loss. At the same time, there will be some slight cracks on the surface. At this time, the pavement surface aggregate will become loose, the water permeability coefficient will be too high, and the disease resistance will be low. If it is not treated in time, large pieces and cracks will appear soon. Aging, vehicle rolling and other reasons cause ruts, potholes, cracks and other phenomena on the road, resulting in reduced driving comfort, slow driving speed, damaged wheels, increased fuel consumption, etc., seriously affecting driving safety

Method used

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  • Efficient reduction repairing agent for asphalt pavement, preparation method and application

Examples

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Effect test

Embodiment 1

[0021] Example 1 Asphalt Pavement Efficient Restoration Agent

[0022] S1. Preparation of acrylic acid polymer grafted with 2-(1-cyclopentenyl) acetic acid side chains: Add 50 parts of ethylene glycol dimethyl ether into the reactor, heat up to 110°C under nitrogen flow, then stir and drop Comprising 52 parts of polypropylene glycol (meth)acrylate, 6.5 parts of polyethylene glycol mono(meth)acrylate and 1 part of tert-butyl peroxy-2-ethylhexanoate, after the dropwise addition, the React at 110°C for 0.5-3h to obtain an acrylic acid polymer with a Mw of 8000, add 0.6 parts of 2-(1-cyclopentenyl)acetic acid dropwise to the acrylic polymer, and react at 40-50°C for 0.5-2h to obtain 2- (1-cyclopentenyl) acetic acid side chain grafted acrylic acid polymer;

[0023] S2. Preparation of polymer emulsion: Dissolve 8-15 parts of methacryloyloxyethyltrimethylammonium chloride and 0.1-2 parts of benzenesulfonic acid in water, and add 5-12 parts of tetramethylammonium under stirring condi...

Embodiment 2

[0026] Example 2 Asphalt Pavement Efficient Restoration Agent

[0027] S1. Preparation of acrylic acid polymer grafted with 2-(1-cyclopentenyl) acetic acid side chains: Add 50 parts of ethylene glycol dimethyl ether into the reactor, heat up to 110°C under nitrogen flow, then stir and drop Comprising 52 parts of polypropylene glycol (meth)acrylate, 6.5 parts of polyethylene glycol mono(meth)acrylate and 1 part of tert-butyl peroxy-2-ethylhexanoate, after the dropwise addition, the React at 110°C for 0.5-3h to obtain an acrylic acid polymer with a Mw of 8000, add 0.6 parts of 2-(1-cyclopentenyl)acetic acid dropwise to the acrylic polymer, and react at 40-50°C for 0.5-2h to obtain 2- (1-cyclopentenyl) acetic acid side chain grafted acrylic acid polymer;

[0028] S2. Preparation of polymer emulsion: Dissolve 15 parts of sodium vinylsulfonate and 2 parts of sulfuric acid in water, add 12 parts of vinyltrimethoxysilane and 35 parts of 2-(1-cyclopentenyl) under stirring condition ...

Embodiment 3

[0031] Example 3 Asphalt Pavement Efficient Restoration Agent

[0032] S1. Preparation of acrylic acid polymer grafted with 2-(1-cyclopentenyl) acetic acid side chains: Add 50 parts of ethylene glycol dimethyl ether into the reactor, heat up to 110°C under nitrogen flow, then stir and drop Comprising 52 parts of polypropylene glycol (meth)acrylate, 6.5 parts of polyethylene glycol mono(meth)acrylate and 1 part of tert-butyl peroxy-2-ethylhexanoate, after the dropwise addition, the React at 110°C for 0.5-3h to obtain an acrylic acid polymer with a Mw of 8000, add 0.6 parts of 2-(1-cyclopentenyl)acetic acid dropwise to the acrylic polymer, and react at 40-50°C for 0.5-2h to obtain 2- (1-cyclopentenyl) acetic acid side chain grafted acrylic acid polymer;

[0033] S2. Preparation of polymer emulsion: 12 parts of methacryloyloxyethyltrimethylammonium chloride and 0.5 part of benzenesulfonic acid are dissolved in water, and 8 parts of phenyltrimethoxysilane and 32 parts of phenyltr...

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Abstract

The invention relates to the technical field of petrochemical engineering, in particular to an asphalt pavement efficient reduction repairing agent which comprises emulsified asphalt, high-molecular polymer emulsion, a photoinitiator, a dispersing agent, a microorganism inducer, graded aggregate, and an ultraviolet absorbent, with the balance being water. Compared with the prior art, the efficient reduction repairing agent for the asphalt pavement can be subjected to photocuring cross-linking, can fully permeate into pores and small cracks of asphalt concrete, infiltrates, activates, repairs and reduces aged asphalt, recovers and strengthens the bonding performance of the asphalt, induces generated calcium carbonate crystals and the graded aggregate to fill the cracks, and therefore, self-repairing is achieved, the waterproof performance of the pavement is repaired and enhanced, the comprehensive preventive maintenance effect is provided, the maintenance investment is reduced, the construction is simple, and the reduction repairing agent can be used for the rapid face-lifting renovation and beautification of various old asphalt pavements and various newly-built asphalt pavements with poor oil and large porosity caused by the construction quality problem.

Description

technical field [0001] The invention relates to the technical field of petrochemical industry, in particular to a high-efficiency reduction repair agent for asphalt pavement, a preparation method and application. Background technique [0002] my country's road construction has entered a stage of rapid development, and as the asphalt pavement built in the early stage increases in service life, under the action of traffic load and various natural factors, the asphalt road gradually ages, and the asphalt road surface becomes rough due to oil loss. At the same time, there will be some slight cracks on the surface. At this time, the pavement surface aggregate will become loose, the water permeability coefficient will be too high, and the disease resistance will be low. If it is not treated in time, large pieces and cracks will appear soon. Aging, vehicle rolling and other reasons cause ruts, potholes, cracks and other phenomena on the road, resulting in reduced driving comfort, slo...

Claims

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Application Information

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IPC IPC(8): C09D195/00C09D151/00C09D7/61C09D7/62C09D7/63C08F285/00C08F220/34C08F230/08
CPCC09D195/005C09D7/61C09D7/62C09D7/63C08F285/00C08K2201/011C08K2003/287C08K2003/162C08K2003/265C08F220/34C08F230/085C08L51/00C08K13/06C08K9/00C08K3/36C08K3/16C08K5/098C08K3/28C08K3/26
Inventor 杨兴旺李程北赵路遥于致峰刘晓磊陈玉风刘洪磊王海赞康彦良宋俊伟付威李军克沈军伟苗向阳李冶
Owner 河南金欧特实业集团股份有限公司
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