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A kind of road high-strength and durable quick repair material and preparation method

A repairing material and durable technology, which is applied in the field of road materials, can solve the problems of repairing materials such as long construction time and difficulty in meeting road maintenance needs, and achieve the effects of ensuring long-term stability, shortening construction time, and fast curing speed

Active Publication Date: 2021-03-26
CHANGAN UNIV +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 purpose of the present invention is to provide a high-strength and durable quick-repair material for road use and a preparation method, so as to solve the problem that the construction time of the repair material in the prior art is still long, and it is difficult to meet the needs of the current situation. Technical issues that create serious pavement maintenance needs

Method used

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  • A kind of road high-strength and durable quick repair material and preparation method

Examples

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Embodiment 1

[0044] This example provides a high-strength and durable quick-repair material for roads, which is made of the following raw materials in parts by weight: 100 parts of polyaspartic acid ester, 55 parts of diisocyanate, 36 parts of ultra-high molecular weight polyethylene, low 10 parts of molecular weight polyethylene, 56 parts of heterocyclic aramid fiber, 6 parts of crosslinking agent, 52 parts of silane coupling agent, and 8 parts of defoaming agent.

[0045] In this example:

[0046] The number average molecular weight of ultra-high molecular weight polyethylene (UHMW-PE) is 1.5 to 2 million; the number average molecular weight of low molecular weight polyethylene (LMPE) is 1000 to 5000.

[0047] The molecular formula of heterocyclic aramid fiber is: The degree of polymerization is 300-500. The heterocyclic aramid fiber is a chopped fiber with a length of 2-4 mm and a diameter of 10-15 μm.

[0048] The degree of polymerization of polyaspartic acid ester is 200-400;

[0...

Embodiment 2

[0070] This example provides a high-strength and durable quick-repair material for roads, which is made of the following raw materials in parts by weight: 100 parts of polyaspartic acid ester, 55 parts of diisocyanate, 35 parts of ultra-high molecular weight polyethylene, low 12 parts of molecular weight polyethylene, 55 parts of heterocyclic aramid fiber, 7 parts of crosslinking agent, 55 parts of silane coupling agent, and 8 parts of defoaming agent.

[0071] The selection and specification requirements of each raw material in this embodiment are the same as those in Embodiment 1.

[0072] This embodiment also provides the preparation method of the above-mentioned high-strength and durable quick-repair material for road, which is the same as the preparation method of the high-strength and durable quick-repair material for road in Example 1.

Embodiment 3

[0074] This example provides a high-strength and durable quick-repair material for roads, which is made of the following raw materials in parts by weight: 100 parts of polyaspartic acid ester, 55 parts of diisocyanate, 37 parts of ultra-high molecular weight polyethylene, low 9 parts of molecular weight polyethylene, 52 parts of heterocyclic aramid fiber, 5 parts of crosslinking agent, 53 parts of silane coupling agent, and 8 parts of defoaming agent.

[0075] The selection and specification requirements of each raw material in this embodiment are the same as those in Embodiment 1.

[0076] This embodiment also provides the preparation method of the above-mentioned high-strength and durable quick-repair material for road, which is the same as the preparation method of the high-strength and durable quick-repair material for road in Example 1.

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Abstract

The invention provides a high-strength durable rapid repair material for roads and a preparation method of the material. The material is prepared from the following raw materials: polyaspartic ester,diisocyanate, ultrahigh-molecular-weight polyethylene, low-molecular-weight polyethylene, heterocyclic aramid fibers, a crosslinking agent, a silane coupling agent and a defoaming agent. The preparation method comprises the following steps: step 1, optimizing processing characteristics of ultrahigh-molecular-weight polyethylene; step 2, preparing active polyethylene composite powder; step 3, preparing polyaspartic ester-polyethylene composite powder; step 4, preparing modified heterocyclic aramid fibers; and step 5, preparing composite modified polyurea. The repairing material provided by theinvention can greatly shorten the construction operation time and quickly repair local damages of a road surface; and meanwhile, the material has higher strength and flexibility, can ensure long-termstability of combination of the material with an original road surface, and can prevent secondary damage in a using process.

Description

technical field [0001] The invention belongs to the field of road materials and relates to road materials, in particular to a high-strength and durable quick-repair material for roads and a preparation method thereof. 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 em...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L75/02C08L23/06C08L77/10
CPCC08L75/02C08L2205/025C08L2205/035C08L2205/16C08L2207/068C08L23/06C08L77/10
Inventor 陈谦张西斌王朝辉姜成岭李洪印高志伟姜海龙张文武刘鹏王飞王珊珊刘伟邢兵杨希安徐琨余四新马霞王健王帅蒋春阳
Owner CHANGAN UNIV
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