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Asphalt regenerant and preparation method thereof

A technology of asphalt regenerator and plasticizer, which is applied in building components, building insulation materials, buildings, etc., can solve the problems of poor regeneration effect and poor low temperature resistance of asphalt mixture, and achieves the solution of poor water resistance and improvement of resistance. Low temperature performance, good regeneration effect

Pending Publication Date: 2021-08-17
重庆市智翔铺道技术工程有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the regeneration effect of the existing regenerant is not good, and the waste asphalt mixture made by mixing has poor low temperature resistance

Method used

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  • Asphalt regenerant and preparation method thereof
  • Asphalt regenerant and preparation method thereof
  • Asphalt regenerant and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Asphalt regenerant, which specifically adopts the following raw materials and is prepared according to the following steps:

[0029] S1: Heat 100kg of plasticizer (including 25kg of recycled waste engine oil, 25kg of furfural oil, 25kg of recycled edible vegetable oil and 25kg of dioctyl phthalate) to 160°C, stir for 30 molecules, and then add 10kg of powdered natural rubber (commercially available) and 5kg anti-aging agent (composed of ultraviolet absorber UV-9, antioxidant 1010 and rubber anti-aging agent 4040NA according to mass ratio 1:1:1), stirred for 60 minutes at 165°C, 500-800rpm;

[0030] S2: Then add 5kgSIS (Baling Petrochemical Co., Ltd.), stir at 165°C, 500-800rpm for 30 minutes; then shear at a shear rate of 8000rpm for 30 minutes, then stir at 165°C, 500-800rpm 60 minutes;

[0031] S3: Add 3 kg of stearic acid amide anti-stripping agent to the mixture obtained in S2, and stir for 30 minutes at 165° C. and 500-800 rpm.

Embodiment 2-6

[0033] Except for the conditions shown in Table 1, other parameter settings in Examples 2-6 are exactly the same as in Example 1.

[0034] Table 1 Example 2-6

[0035]

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PUM

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Abstract

The invention belongs to the technical field of asphalt, and particularly relates to an asphalt regenerant. The asphalt regenerant comprises a styrene-isoprene-styrene block copolymer, an anti-aging agent and a plasticizer. The asphalt regenerant disclosed by the invention is good in regeneration effect, and the low-temperature resistance of a regenerated asphalt mixture is improved.

Description

technical field [0001] The invention belongs to the technical field of asphalt, and in particular relates to an asphalt regenerant and a preparation method thereof. Background technique [0002] The design life of asphalt pavement in my country is 8-15 years. However, due to complex environmental factors, vehicle loads and construction technology, some asphalt pavement has rutting, cracks, pits, spalling and other diseases. At present, milling is generally used to remove the old asphalt pavement and then pave it again. This treatment method can better deal with road surface diseases, but it also produces a large amount of waste asphalt pavement materials (RAP) ("Research on the performance of bio-asphalt recycled binders", Li Junfeng, Master's thesis of Hunan University, 2018, Line 6 of paragraph 1 to line 5 of paragraph 2 on page 1, published on December 31, 2018). [0003] At present, these waste asphalt pavement materials are mainly recycled and reused through recycling...

Claims

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Application Information

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IPC IPC(8): C08L95/00C08L53/02C08L91/00C08L7/00C08K5/12C08K5/20C08K5/132C08K5/134C08K5/18
CPCC08L95/00C08L53/02C08L91/00C08L7/00C08K5/12C08K5/20C08K5/132C08K5/1345C08K5/18
Inventor 盛兴跃闫兆柏陈舟宇雪彦鹏廖进峰杨波毛志鹏王宇
Owner 重庆市智翔铺道技术工程有限公司
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