Preparation method of plant-mixed hot recycled asphalt mixture

A technology of asphalt mixture and recycled mixture, applied in the direction of sustainable waste treatment, solid waste management, climate sustainability, etc., can solve problems such as waste of resources, reduce transportation costs, save stone resources and land resources, and improve The effect of capacity

Pending Publication Date: 2020-12-18
SHENZHEN MUNICIPAL ENG +1
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Problems solved by technology

[0003] The purpose of the present invention is to provide a method for preparing hot recycled asphalt mixture in the factory, ai

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  • Preparation method of plant-mixed hot recycled asphalt mixture
  • Preparation method of plant-mixed hot recycled asphalt mixture
  • Preparation method of plant-mixed hot recycled asphalt mixture

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[0026]In order to make the objectives, technical solutions, and advantages of the present invention clearer, the following further describes the present invention in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, but not to limit the present invention.

[0027]The same or similar reference signs in the drawings of this embodiment correspond to the same or similar components; in the description of the present invention, it should be understood that if there are terms "upper", "lower", "left", "right", etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the pointed device or element must have a specific orientation or a specific or...

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Abstract

The invention relates to the technical field of asphalt mixture preparation, and discloses a preparation method of plant-mixed hot recycled asphalt mixture, which comprises: 1) preparing a matrix asphalt and waste asphalt mixture meeting requirements, and screening the waste asphalt mixture into a coarse waste asphalt mixture and a fine waste asphalt mixture; 2) detecting the asphalt content in the waste asphalt mixture, checking the physical performance indexes of the coarse and fine groups of waste asphalt mixtures, and determining the optimal mixing ratio of the coarse and fine groups of waste asphalt mixtures; 3) determining the amount of new asphalt in combination with the asphalt content in the waste asphalt mixture; and 4) heating the matrix asphalt to 155 DEG C, preheating the coarse and fine groups of waste asphalt mixtures in a drying oven for 4 hours, heating the new aggregate, mixing the heated matrix asphalt, new aggregate, new asphalt and mineral powder into the coarse and fine groups of waste asphalt mixtures, mixing and stirring, and heating in the drying oven again.

Description

technical field [0001] The invention relates to the technical field of asphalt mixing preparation, in particular to a method for preparing plant-mixed hot recycled asphalt mixture. Background technique [0002] At present, many asphalt pavements paved in the early stage have serious cracks, ruts, potholes, looseness and other diseases. During the process, a large amount of waste asphalt mixture will be produced. If it is not recycled, it will not only occupy a large amount of land and pollute the surrounding ecological environment, but also a huge waste of non-renewable resources such as asphalt and stone. Contents of the invention [0003] The purpose of the present invention is to provide a method for preparing factory-mixed hot recycled asphalt mixture, aiming at solving the problem in the prior art that waste and old asphalt mixture cannot be recycled, resulting in waste of resources. [0004] The present invention is achieved in this way, the preparation method of ho...

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Application Information

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IPC IPC(8): C04B26/26C04B18/16
CPCC04B18/16C04B26/26C04B2111/0075C04B2201/20C04B14/00C04B18/12Y02W30/91
Inventor 许勐刘忠涂亮亮赖少雄侯勇勇曾俊杰
Owner SHENZHEN MUNICIPAL ENG
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