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Reinforced and toughened road rapid repair material and preparation method thereof

A technology for strengthening, toughening and repairing materials, which is applied in the direction of roads, roads, and cohesive pavements paved on site. It can solve the problems of slow construction speed and poor durability, achieve fast curing speed, good durability, and shorten construction operations. the effect of time

Active Publication Date: 2021-03-26
SHANDONG HI SPEED GRP CO LTD +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In view of the deficiencies and defects of the above-mentioned prior art, the object of the present invention is to provide a kind of reinforced and toughened road rapid repair material and its preparation method, to realize the rapid repair of local damage on the road surface, and to overcome the slow construction speed and durability of the existing emulsified asphalt repair materials. Defective sex

Method used

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  • Reinforced and toughened road rapid repair material and preparation method thereof

Examples

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Embodiment 1

[0035] This embodiment provides a kind of reinforced and toughened road rapid repair material, which is made of the following raw materials in parts by weight: 100 parts of nonanediamine, 60 parts of urea, 27 parts of polyvinyl alcohol, 11 parts of dipentaerythritol, 33 parts of aramid fiber, 4 parts of defoamer.

[0036] In this example:

[0037] The number average molecular weight of the polyvinyl alcohol is 100,000-120,000.

[0038] The para-aramid fiber is polyparaphenylene terephthalamide, and the degree of polymerization is 300-500.

[0039] The para-aramid fibers are chopped fibers with a length of 2-4 mm and a diameter of 10-15 μm.

[0040] The nonanediamine is nonylenediamine or 2-methyl-1,8 octanediamine;

[0041] The defoamer is polyoxyethylene polyoxypropylene pentaerythritol ether, polyoxyethylene polyoxypropylene alcohol amine ether, polyoxypropylene glyceryl ether or polyoxypropylene polyoxyethylene glyceryl ether. The degree of polymerization of the defoame...

Embodiment 2

[0056] This embodiment provides a kind of reinforced and toughened road rapid repair material, which is made of the following raw materials in parts by weight: 100 parts of nonanediamine, 60 parts of urea, 26 parts of polyvinyl alcohol, 12 parts of dipentaerythritol, 40 parts of aramid fiber, 5 parts of defoamer.

[0057] The selection and specification requirements of each raw material in this embodiment are the same as those in Embodiment 1.

[0058] This embodiment also provides the preparation method of the above-mentioned reinforced and toughened rapid road repair material, which is the same as the preparation method of the reinforced and toughened road rapid repair material in Example 1.

Embodiment 3

[0060] This embodiment provides a kind of reinforced and toughened road rapid repair material, which is made of the following raw materials in parts by weight: 100 parts of nonanediamine, 60 parts of urea, 25 parts of polyvinyl alcohol, 15 parts of dipentaerythritol, 30 parts of aramid fiber, 4 parts of defoamer.

[0061] The selection and specification requirements of each raw material in this embodiment are the same as those in Embodiment 1.

[0062] This embodiment also provides the preparation method of the above-mentioned reinforced and toughened rapid road repair material, which is the same as the preparation method of the reinforced and toughened road rapid repair material in Example 1.

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Abstract

The invention provides a reinforced and toughened road rapid repair material and a preparation method thereof. The reinforced and toughened road rapid repair material is prepared from the following raw materials: nonamethylene diamine, urea, polyvinyl alcohol, dipentaerythritol, para-aramid fibers and a defoaming agent. The method comprises the following steps: step 1, optimizing processing characteristics of polyvinyl alcohol; step 2, preparing modified para-aramid fibers; step 3, preparing nonamethylene diamine containing the modified para-aramid fibers; and step 4, preparing composite modified polyurea. The repair material disclosed by the invention can greatly shorten the construction operation time and quickly repair local damage of a pavement; meanwhile, the material has high strength and flexibility, long-term stability of combination of the material and an original pavement can be guaranteed, and secondary damage in the using process is prevented.

Description

technical field [0001] The invention belongs to the field of road materials and relates to road materials, in particular to a reinforced and toughened road rapid repair material and a preparation method. Background technique [0002] Pavement repair and maintenance is one of the important issues facing the field of road engineering today. According to statistics, in recent years, our country spends more than 30 billion yuan on highway maintenance and repair every year. With the gradual improvement of my country's highway traffic network, more and more attention has been paid to road maintenance. In the prior art, emulsified asphalt is generally used as a repairing material for partial pavement damage due to its fast construction speed and simple process, such as the Chinese patent "A Quick Repair Method for Asphalt Concrete Pavement" with the authorized announcement number CN102505601B. However, in practical applications, although the construction speed of emulsified aspha...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L75/02C08J5/06D06M15/564D06M15/333D06M15/53D06M13/148E01C7/30D06M101/36
CPCC08J5/06C08J2375/02C08J2477/10D06M13/148D06M15/333D06M15/53D06M15/564D06M2101/36E01C7/30
Inventor 张西斌陈谦姜成岭王朝辉李洪印高志伟姜海龙张文武刘鹏王飞王珊珊刘伟杨希安邢兵余四新徐琨胡晓庆樊振通蒋春阳
Owner SHANDONG HI SPEED GRP CO LTD
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