A kind of regeneration agent for hot regeneration of asphalt pavement

A technology for asphalt pavement and rejuvenating agent, which is applied in building components, building insulation materials, construction, etc., can solve the problems of high cost of rejuvenating agent, high mixing temperature, poor peeling resistance of recycled pavement, etc., and achieves the temperature stability of recycled asphalt. With the effect of improved viscoelastic performance and low cost

Active Publication Date: 2017-12-05
江苏创为交通科技发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the existing hot-in-place regeneration technology for asphalt pavement has disadvantages such as high cost of regenerant, low blending rate of old materials, high mixing temperature, and poor spalling resistance of regenerated pavement. Geothermal Recycled Asphalt Mixture

Method used

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  • A kind of regeneration agent for hot regeneration of asphalt pavement
  • A kind of regeneration agent for hot regeneration of asphalt pavement
  • A kind of regeneration agent for hot regeneration of asphalt pavement

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] A regeneration agent for hot regeneration of asphalt pavement, its raw materials include the following components: petroleum heavy oil: 22 parts; waste oil: 19.5 parts; furfural extraction oil: 27 parts; styrene-butadiene rubber: 5.6 parts; dimethyl phthalate Esters: 3.3 parts; Manganese dioxide: 2.5 parts; Carbon black: 4.1 parts; Carolamine: 3.6 parts; Benzophenone: 4.2 parts; Aluminum chloride: 2.1 parts; share. Mix petroleum heavy oil and gutter oil, heat to 85°C; mix styrene-butadiene rubber, dimethyl phthalate, manganese dioxide, carbon black, carolamine, benzophenone, aluminum chloride, methyl silicone oil , Chloroform is mixed with petroleum heavy oil and gutter oil, and heat-preserved and stirred to form a mixture; the mixture is heated to 105° C., and furfural is added to extract the oil, and stirred to form the regenerant.

[0039] The regeneration effect of the regenerant prepared in this example is shown in Table 1. As shown in the table, the temperature s...

Embodiment 2

[0043] A regenerant for asphalt pavement heat regeneration, its raw material comprises the following components:

[0044] Petroleum heavy oil: 10.3 parts; waste oil: 16.2 parts; furfural extraction oil: 26 parts; styrene-butadiene rubber: 3.5 parts; dimethyl phthalate: 2.65 parts; manganese dioxide: 2.1 parts; carbon black: 3.4 parts ; Carolamide: 2.4 parts; Benzophenone: 2.8 parts; Aluminum chloride: 2.7 parts; Methyl silicone oil: 0.65 parts; Chloroform: 0.275 parts. Mix petroleum heavy oil and waste oil, heat to 88°C; mix styrene-butadiene rubber, dimethyl phthalate, manganese dioxide, carbon black, carolamine, benzophenone, aluminum chloride, methyl silicone oil , Chloroform is mixed with petroleum heavy oil and gutter oil, and heat-preserved and stirred to form a mixture; the mixture is heated to 98° C., and furfural is added to extract the oil, and stirred to form the regenerant.

[0045] The regeneration effect of the regenerant prepared in this example is shown in Tab...

Embodiment 3

[0049] A regenerant for asphalt pavement heat regeneration, its raw material comprises the following components:

[0050] Petroleum heavy oil: 10.8 parts; waste oil: 17.2 parts; furfural extraction oil: 32 parts; styrene-butadiene rubber: 6 parts; dimethyl phthalate: 3.2 parts; manganese dioxide: 2.1 parts; carbon black: 3.4 parts ; Carolamide: 2.6 parts; Benzophenone: 2.3 parts; Aluminum chloride: 2.8 parts; Methyl silicone oil: 0.65 parts; Chloroform: 0.35 parts. Mix petroleum heavy oil and gutter oil and heat to 86°C; mix styrene-butadiene rubber, dimethyl phthalate, manganese dioxide, carbon black, carolamine, benzophenone, aluminum chloride, methyl silicone oil , chloroform is mixed with heavy petroleum oil and waste oil, and kept warm and stirred to form a mixture; the mixture is heated to 100° C., and furfural is added to extract the oil, and stirred to form the regenerant.

[0051] The regeneration effect of the regenerant prepared in this example is shown in Table 3....

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Abstract

The invention discloses a regeneration agent for heat regeneration of asphalt pavement. The raw materials include the following components: petroleum heavy oil: 4-25 parts; waste oil: 15-30 parts; furfural extraction oil: 20-40 parts; styrene-butadiene rubber Dimethyl phthalate: 2-4 parts; Manganese dioxide: 2-3 parts; Carbon black: 2-5 parts; Caroline: 2-4 parts; Benzophenone: 2‑5 parts; aluminum chloride: 2‑3 parts; methyl silicone oil: 0.5‑0.8 parts; chloroform: 0.2‑0.4 parts. The approved regenerant for hot-in-place recycled asphalt has low cost. By optimizing the components and content, the regenerated agent is used for hot-in-place recycled asphalt pavement, and the temperature stability and viscoelastic properties of the recycled asphalt are significantly improved.

Description

technical field [0001] The invention belongs to the field of road engineering materials, and in particular relates to a regeneration agent for heat regeneration of asphalt pavement. Background technique [0002] The amount of waste asphalt mixture produced in my country is nearly 60 million tons every year. If such a large amount of waste asphalt mixture is not utilized, it will not only occupy a large amount of land, but also pollute the environment. Therefore, the scientific and efficient utilization of waste asphalt mixture is of great significance to promote resource recycling and environmental protection. [0003] The recycling technology of waste asphalt mixture has been emerging in China. The current asphalt mixture recycling technology is mainly divided into two types: hot recycling and cold recycling. Cold recycling technology can utilize 70-90% of RAP, but cold recycling is more of a reuse of recycled materials, and does not regenerate the aged asphalt. Thermal ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L95/00C08L91/00C08L9/06C08L83/04C08K13/02C08K5/12C08K3/22C08K3/16C08K3/04C08K5/17
Inventor 马涛黄晓明赵永利叶勤袁浩
Owner 江苏创为交通科技发展有限公司
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