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A warm-mixing and warm-replenishing highway pavement pothole repair material and its preparation method and application

A kind of repairing material and temperature-replenishing 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, expensive repairing costs, etc., and achieve good economic benefits and road technical performance. Improve and improve the effect of construction and ease of performance

Inactive Publication Date: 2019-04-05
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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  • A warm-mixing and warm-replenishing highway pavement pothole repair material and its preparation method and application
  • A warm-mixing and warm-replenishing highway pavement pothole repair material and its preparation method and application
  • A warm-mixing and warm-replenishing highway pavement pothole repair material and its preparation method and application

Examples

Experimental program
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Effect test

Embodiment 1

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

[0037] 2) Take 100 parts of 70# road petroleum asphalt heated to a molten state and pour it into a heated and heat-preserving reactor, add 4 parts of 0# diesel oil, stir evenly, keep warm to 100~120℃, and then add 0.5 part of Yilu, 15 parts Modified asphalt additive, mix evenly, keep the temperature at 90~110℃, ready for use.

[0038] 3) Prepare the materials such as sand, ore powder and other materials into AC-13I type mixture gradation. After heating to 100~120℃ with intermittent or continuous mixer, press the mineral mixture: composite modified asphalt mixture = 100 :The ratio of 4.8, add the compound modified asphalt mixture and mix it evenly, then cool to normal temperature and set ...

Embodiment 2

[0045] 1) Put 100 parts of 791 SBS, 60 parts of waste engine oil, 60 parts of toluene, and 100 parts of 200# solvent oil into a sealed container according to the mass ratio. After the SBS is fully dissolved at room temperature, stir it evenly to obtain the modified Asphalt additives, spare.

[0046] 2) Take 100 parts of 70# road petroleum asphalt heated to a molten state and pour it into a heated and heat-preserving reactor, add 6 parts of 0# diesel oil, stir evenly, keep warm to 100~120℃, then add 1 part of Sasobit, 20 parts of modified As an asphalt additive, stir evenly, keep the temperature at 90~110℃, ready for use.

[0047] 3) Prepare materials such as sand, stone, mineral powder and other materials into AC-10I type mixture gradation. After heating to 100~120℃ with a gap or continuous mixer, press the mineral mixture: composite modified asphalt mixture = 100 : At a ratio of 5.0, add the composite modified asphalt mixture and mix it evenly, then cool it to room temperature fo...

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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 pothole repair material for highway pavement, in particular to a warm-mix temperature-compensated highway pavement pothole repair material, a preparation method thereof and application in highway pavement pothole repair, belonging to the field of 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, causing looseness, potholes, spalling and other diseases. It must be repaired quickly. For high-temperature climates and large-scale repair conditions, hot-mix hot-laying asphalt mixtures are often used. Repair, in the low temperature season and small-scale repair, currently, the following methods can be mainly used: [00...

Claims

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Application Information

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Patent Type & Authority Patents(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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