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Warm-mix and warm-repair type highway pavement pothole repair material and preparation method and use thereof

A repairing material and temperature repairing technology, which is applied in the field of pavement pothole repairing materials, can solve problems such as unsatisfactory technical performance and durability, uneven heating of the road surface, increased material costs, etc., and achieve good economic benefits and road technical performance Improve, facilitate the effect of processing and use

Inactive Publication Date: 2017-05-31
CHANGSHA UNIVERSITY OF SCIENCE AND TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, the technical performance and durability of the repairing material cannot meet the requirements of expressway rapid repairing by using the method of solvent-based cold patching of asphalt, and the performance needs to be further improved; the method of heating the modified asphalt mixture is used to prepare the asphalt mixture When mixing, the temperature should reach 140-200°C. When cooling, the hot-mix asphalt mixture needs to be coated with a special release agent, which will increase the cost of the material, and the performance of the material will also be affected; use infrared or microwave heating method , there will be problems such as uneven heating of the road surface, easy aging of old asphalt, special heating equipment, and expensive repair costs

Method used

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  • Warm-mix and warm-repair type highway pavement pothole repair material and preparation method and use thereof
  • Warm-mix and warm-repair type highway pavement pothole repair material and preparation method and use thereof
  • Warm-mix and warm-repair type highway pavement pothole repair material and preparation method and use thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] 1) Put 100 parts of 791 type SBS, 50 parts of waste engine oil, 50 parts of toluene, and 110 parts of 200# solvent oil into a sealed container in advance according to the mass ratio. After fully dissolving the SBS at room temperature, stir evenly to obtain modification Asphalt additive, spare.

[0037] 2) Take 100 parts of 70# road petroleum asphalt and heat it to a molten state, then pour it into a heating and heat preservation reactor, add 4 parts of 0# diesel oil, stir evenly, keep warm at 100-120°C, then add 0.5 parts of Yilu, 15 parts Modified asphalt additive, stir evenly, keep warm at 90-110°C, and set aside.

[0038] 3) Mix materials such as gravel and mineral powder into AC-13I-type mixture gradation, heat it to 100-120°C with an intermittent or continuous mixer, and mix according to mineral mixture: composite modified asphalt mixture = 100 : The ratio of 4.8, add the composite modified asphalt mixture and stir evenly, cool to normal temperature, and set aside...

Embodiment 2

[0045] 1) Put 100 parts of 791 type SBS, 60 parts of waste engine oil, 60 parts of toluene, and 100 parts of 200# solvent oil into a sealed container in advance according to the mass ratio. After fully dissolving the SBS at room temperature, stir evenly to obtain modification Asphalt additive, spare.

[0046]2) Take 100 parts of 70# road petroleum asphalt and heat it to a molten state, then pour it into a heating and heat preservation reactor, add 6 parts of 0# diesel oil, stir evenly, keep warm at 100-120°C, then add 1 part of Sasobit, 20 parts of modified Non-toxic asphalt additive, stir evenly, keep warm at 90-110°C, and set aside.

[0047] 3) Mix materials such as gravel and mineral powder into AC-10I type mixture gradation, heat it up to 100-120°C with batch or continuous mixer, mix according to mineral mixture: composite modified asphalt mixture = 100 : The ratio of 5.0, add the composite modified asphalt mixture and stir evenly, cool to normal temperature, and set asid...

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Abstract

The invention discloses a warm-mix and warm-repair type highway pavement pothole repair material and a preparation method and use thereof. The repair material comprises a composite modified asphalt liquid composed of a matrix asphalt, a thinner, a warm mix agent, and a modified asphalt additive, and an aggregate material. The repair material has technical properties such as initial strength, final strength and water tolerance meeting the requirements of fast pavement repair, and when used in highway pavement pothole repair, has the advantages of timeliness, speediness, high efficiency, good durability and the like, and thus is capable of satisfying the need of daily maintenance of high-grade highways.

Description

technical field [0001] The invention relates to a highway pavement pothole repair material, in particular to a warm-mixing and warm-replenishment highway pavement pothole repair material, a preparation method thereof and an application in highway pavement pothole repair; it belongs to the field of road pavement pothole repair materials. Background technique [0002] Over the past 30 years of reform and opening up, my country's highway construction has developed rapidly. By the end of 2015, the total mileage of my country's highways opened to traffic exceeded 2.3 million kilometers. After the highway is opened to traffic, it will be gradually damaged by various factors, and there will be looseness, potholes, peeling and other diseases, which must be repaired quickly. For high-temperature climates and large-scale repair conditions, hot-mixed and hot-paved asphalt mixture can often be used. Repair, in the low temperature season and small-scale repair, at present, the following ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B26/26C04B111/72
CPCC04B26/26C04B2111/0075C04B2111/72C04B24/2611C04B24/08C04B24/00C04B14/06C04B18/12Y02A30/30
Inventor 刘大梁陈琳刘小燕
Owner CHANGSHA UNIVERSITY OF SCIENCE AND TECHNOLOGY
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