Environment-friendly warm mix asphalt regenerant and preparation method thereof
A warm-mix asphalt and rejuvenator technology, applied in building insulation materials, sustainable manufacturing/processing, building components, etc., can solve problems such as high mixing temperature and poor diffusion effect of asphalt regenerant materials, so as to improve crack resistance , rapidly diffuse and restore the properties of aged asphalt, and strengthen the interface performance between layers
Active Publication Date: 2020-08-11
HARBIN INST OF TECH
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Problems solved by technology
[0005] The purpose of the present invention is to provide an environment-friendly warm-mix asphalt rejuvenator and its preparation method in order to solve the problems of poor diffusion effect and high mixing temperature of the existing asphalt rejuvenator materials
Method used
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specific Embodiment approach 1
[0018] Specific implementation mode 1: In this embodiment, the environment-friendly warm-mix asphalt regeneration agent consists of 20-50 parts by mass of bio-asphalt, 20-50 parts of epoxy soybean oil, 10-15 parts of curing agent, 5-10 parts of straw fiber and 10 parts by mass. ~15 parts epoxy resin mixed.
specific Embodiment approach 2
[0019] Embodiment 2: This embodiment differs from Embodiment 1 in that bio-asphalt is vegetable asphalt produced from residual oil after refined vegetable oil production.
specific Embodiment approach 3
[0020] Embodiment 3: This embodiment is different from Embodiment 1 or Embodiment 2 in that the curing agent is a modified aliphatic amine curing agent.
[0021] In this embodiment, the modified aliphatic amine curing agent can undergo a curing reaction with the epoxy resin at room temperature.
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Abstract
The invention discloses an environment-friendly warm mix asphalt regenerant and a preparation method thereof, belongs to the field of road engineering, and aims to solve the problems of poor diffusioneffect and higher mixing temperature of the conventional asphalt regenerant material. The preparation method comprises the following steps: 1, weighing biological asphalt, epoxidized soybean oil, a curing agent, straw fibers and an epoxy resin as raw materials; 2, putting the biological asphalt in the raw materials into a reactor, adding the curing agent, uniformly stirring at the temperature of50-60 DEG C to obtain a mixture, adding the epoxidized soybean oil in the raw materials, stirring at the temperature of 50-60 DEG C, adding the straw fibers, and continuously stirring at the temperature of 50-60 DEG C to obtain a regenerant effective component; and 3, mixing the regenerant effective component with the epoxy resin in the raw materials. The performance of the aged asphalt is recovered by adopting effective components such as the biological asphalt, the diffusion effect is enhanced through the epoxidized soybean oil, the warm-mixing production of the recycled asphalt mixture is realized, and the production process is simple and energy-saving.
Description
technical field [0001] The invention belongs to the field of road engineering, and in particular relates to an environment-friendly warm-mix asphalt rejuvenator and a preparation method thereof. Background technique [0002] As of the end of 2018, the total mileage of my country's highways reached 4.8465 million kilometers, of which road maintenance mileage accounted for 98.2% of the total road mileage. At the same time, the mileage of secondary and above roads reached 647,800 kilometers. Tens of millions of tons of waste asphalt mixture (RAP) will be generated due to road maintenance and repair projects. At present, the comprehensive disposal of RAP is gradually becoming an important research content in the sustainable development of the transportation field. The "Outline for the Construction of a Powerful Transportation Country" also pointed out that "promote the economical and intensive use of resources, promote the recycling and comprehensive utilization of waste material...
Claims
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Patent Timeline
Login to view more IPC IPC(8): C08L95/00C08L91/00C08L97/02C08L63/00
CPCC08L91/00C08L95/00C08L2205/035C08L2205/16C08L97/02C08L63/00Y02A30/30Y02P20/10
Inventor 冯德成裴忠实易军艳许勐王东升
Owner HARBIN INST OF TECH
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