Regenerant for milling material regeneration thin layer and preparation method and application thereof

A technology of regeneration agent and milling material, which is applied in the direction of building insulation materials, building components, buildings, etc., and can solve the problems of secondary aging, recycled asphalt and mixture performance that cannot meet the requirements of thin-layer overlays, etc.

Inactive Publication Date: 2020-10-30
上海缤德新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the above-mentioned patent still needs to be completed at a relatively high temperature during the production and mixing process, which is prone to secondary aging. At the same time, the performance of recycled asphalt and mixture cannot meet the needs of thin-layer overlays

Method used

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  • Regenerant for milling material regeneration thin layer and preparation method and application thereof
  • Regenerant for milling material regeneration thin layer and preparation method and application thereof
  • Regenerant for milling material regeneration thin layer and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] The regeneration agent for the milling material regeneration thin layer of the present embodiment is composed of the following proportions: 100 parts of asphalt, 6 parts of styrene-ethylene / butylene-styrene copolymer, 4 parts of polycarbonate diol, fatty alcohol polyoxyethylene 1.5 parts of sodium ether sulfate, 80 parts of rubber oil.

[0029] Add styrene-ethylene / butylene-styrene copolymer to the asphalt at 170°C according to the above ratio, and after stirring for 60 minutes, add polycarbonate diol, fatty alcohol polyoxyethylene ether sodium sulfate, and rubber oil according to the above ratio and stir After 40 minutes, the regeneration agent for the regeneration thin layer of the milling material was obtained.

[0030] 50 parts by mass of regenerated agent and 50 parts by mass of old asphalt were stirred at 120°C for 60 seconds to obtain regenerated asphalt. The technical indicators are shown in Table 1.

[0031] The regenerant is directly added to the milling mate...

Embodiment 2

[0033] The regeneration agent for the milling material regeneration thin layer of the present embodiment is composed of the following proportions: 100 parts of asphalt, 3 parts of styrene-ethylene / butylene-styrene copolymer, 2 parts of polycarbonate diol, fatty alcohol polyoxyethylene 0.5 part of sodium ether sulfate, 50 parts of rubber oil.

[0034] Add styrene-ethylene / butylene-styrene copolymer to the asphalt at 170°C according to the above ratio, and after stirring for 60 minutes, add polycarbonate diol, fatty alcohol polyoxyethylene ether sodium sulfate, and rubber oil according to the above ratio and stir After 40 minutes, the regeneration agent for the regeneration thin layer of the milling material was obtained.

[0035] 50 parts by mass of regenerated agent and 50 parts by mass of old asphalt were stirred at 120°C for 60 seconds to obtain regenerated asphalt. The technical indicators are shown in Table 1.

[0036] The regenerant is directly added into the milling mat...

Embodiment 3

[0039] The regeneration agent for the milling material regeneration thin layer of the present embodiment is composed of the following proportions: 100 parts of asphalt, 8 parts of styrene-ethylene / butylene-styrene copolymer, 5 parts of polycarbonate diol, fatty alcohol polyoxyethylene 2 parts of sodium ether sulfate, 100 parts of rubber oil.

[0040]Add styrene-ethylene / butylene-styrene copolymer to the asphalt at 170°C according to the above ratio, and after stirring for 60 minutes, add polycarbonate diol, fatty alcohol polyoxyethylene ether sodium sulfate, and rubber oil according to the above ratio and stir After 40 minutes, the regeneration agent for the regeneration thin layer of the milling material was obtained.

[0041] 50 parts by mass of regenerated agent and 50 parts by mass of old asphalt were stirred at 120°C for 60 seconds to obtain regenerated asphalt. The technical indicators are shown in Table 1.

[0042] The regenerant is directly added to the milling materi...

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Abstract

The invention relates to a regenerant for a milling material regeneration thin layer and a preparation method and application of the regenerant. The regenerant is prepared from the following raw materials in parts by mass: 100 parts of asphalt, 3 to 8 parts of a styrene-ethylene / butylene-styrene copolymer, 2 to 5 parts of polycarbonate diol, 0.5 to 2 parts of fatty alcohol-polyoxyethylene ether sodium sulfate and 50 to 100 parts of rubber oil. Compared with the prior art, the regenerant Is added with the surfactant, so that the surface activity of the milling material is improved, asphalt viscosity is effectively reduced, a miscibility speed is increased, and through a method of adjusting chemical components, the old asphalt in the old asphalt mixture is regenerated, three indexes of the old asphalt are effectively improved, and the anti-aging agent is added to prevent further aging of the asphalt in the production and mixing process, so that the milling material is recycled, the performance requirements of the thin overlay are met, and the method is green, environment-friendly and efficient.

Description

technical field [0001] The invention relates to the field of road engineering, in particular to a rejuvenating agent for regenerating thin layers of milling materials, a preparation method and application thereof. Background technique [0002] At present, a large number of roads have entered the maintenance and repair period. The way of maintenance and repair in the prior art is mainly to mill the original surface structure and then add a new surface structure. Milling material is produced at the same time as milling, that is, the old road surface asphalt mixture. The annual maintenance of the milling material exceeds Tens of thousands of tons, and showing an increasing trend year by year. In order to prevent the milling material from polluting the environment, occupying land resources, and reusing non-renewable resources, it is necessary to scientifically reuse the milling material. Milling materials contain non-renewable resources such as petroleum asphalt and aggregates...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L95/00C08L53/02C08L69/00C08L71/02C08L91/00E01C19/08E01C19/10E01C19/48
CPCC08L95/00C08L2205/035E01C19/08E01C19/1013E01C19/48C08L53/025C08L69/00C08L71/02C08L91/00
Inventor 黄卫东吕泉李平辉钟皓白周璐
Owner 上海缤德新材料科技有限公司
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