Material for waste asphalt regeneration pavement and preparation method of material

A technology for waste asphalt and recycled pavement, applied in building insulation materials, solid waste management, sustainable waste treatment, etc., can solve the problems of insufficient grading treatment, low recovery rate, etc. The effect of improving durability

Inactive Publication Date: 2013-12-25
GUANGZHOU MUNICIPAL ENG MAINTENANCE DEPT
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But the recovery rate is low (10~30%), the main reason is that the grading treatment is not enough, on the other hand, the development and application performance of the asphalt recycled pavement materials is directly related to the road performance of the plant-mixed hot recycled asphalt mixture. There is a lot of room for improvement

Method used

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  • Material for waste asphalt regeneration pavement and preparation method of material
  • Material for waste asphalt regeneration pavement and preparation method of material
  • Material for waste asphalt regeneration pavement and preparation method of material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Embodiment 1 Waste and old asphalt regeneration pavement material of the present invention

[0032] The waste asphalt regeneration pavement material is composed of the following components: 1 part of light oil, 10 parts of waste rubber powder, 3 parts of plasticizing component, 100 parts of modified main agent, 5 parts of thickening component, 2 parts of stabilizer share. Wherein the light oil is divided into naphthenic oil, and the waste rubber powder is activated waste rubber powder with a fineness of 40 meshes. The plasticizing component is dibutyl phthalate, and the tackifying component is C9 petroleum resin, which is stable The agent is dicumyl peroxide.

[0033] The preparation method of the above-mentioned waste asphalt recycled pavement materials is as follows: first, heat the modified main agent to 165°C, place it under a high-speed shearing machine, start the high-speed shearing machine and control the shearing speed of the high-speed shearing machine to 5000...

Embodiment 2

[0034] Embodiment 2 Waste and old asphalt regeneration pavement material of the present invention

[0035] The waste asphalt regeneration pavement material is composed of the following components: 1 part of light oil, 10 parts of waste rubber powder, 3 parts of plasticizing component, 100 parts of modified main agent, 5 parts of thickening component, 2 parts of stabilizer share. Wherein light oil is divided into naphthenic oil, waste rubber powder is activated waste rubber powder, and fineness is 40 orders, and described plasticizing component is dibutyl phthalate, and viscosifying component is C9# petroleum resin, The stabilizer is dicumyl peroxide.

[0036] The preparation method of the above-mentioned waste asphalt regeneration pavement material is as follows: first, heat the modified main agent to 175°C, place it under a high-speed shearing machine, start the high-speed shearing machine and control the shearing speed of the high-speed shearing machine to 3000 rpm min, th...

Embodiment 3- Embodiment 7

[0037] Example 3-Example 7 The waste and old asphalt regeneration pavement material and its preparation method of the present invention

[0038] Components and contents in the waste and old asphalt regenerated pavement materials are shown in the following table:

[0039] Table 1 The number of components in the waste asphalt recycled pavement materials in Examples 3-7

[0040]

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Abstract

The invention relates to a material for a waste asphalt regeneration pavement and a preparation method of the material and belongs to the field of construction and maintenance of road engineering. For improving the property of waste asphalt and lowering the maintenance cost of the road, the invention provides a material for waste asphalt regeneration pavement and a preparation method of the material. The material for the waste asphalt regeneration pavement comprises lightweight oil, plasticized components, a modified main agent, tackifying components and a stabilizer, and the selection range and constitution of all components are specifically limited. Aging tests and low-temperature performance show that the viscoplastic performance of the regenerated asphalt and the anti-crack property and durability of the pavement can be greatly improved when the material for waste asphalt regeneration pavement is used for regeneration of the waste asphalt; therefore, the material for waste asphalt regeneration pavement has a bright application prospect.

Description

technical field [0001] The invention relates to a material for reclaimed pavement of waste asphalt and a preparation method thereof, belonging to the field of road engineering construction and maintenance. Background technique [0002] Since the end of the 1990s, my country began to build asphalt pavement on a large scale. Since the beginning of the new century, the development and construction speed of highways has advanced by leaps and bounds. The scale of investment of nearly 200 billion yuan has been developing rapidly every year. The scale of new cities and high-grade asphalt pavement continues to increase. expand. At the same time, with the increase of transportation load and the approaching service life of pavement materials, a large number of asphalt pavements have appeared serious rutting, wear, cracks and other diseases, and my country's asphalt pavement is about to enter the era of large-scale renovation. The renovation of asphalt pavement will produce a large ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L95/00C08L21/00C08L57/02C08K5/01C08K5/1535C08K5/103C08K5/12C08K5/14C08K5/00C04B26/26C04B18/16
CPCY02W30/91
Inventor 彭馨彦林智勇周来添龙海舟朱东浩
Owner GUANGZHOU MUNICIPAL ENG MAINTENANCE DEPT
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