Preventive maintenance method for asphalt concrete pavement

An asphalt concrete and preventive maintenance technology, applied in the direction of roads, roads, road repair, etc., can solve the problems of reducing maintenance efficiency, pavement performance recovery, segregation, etc., and achieve the effect of improving maintenance efficiency, enhancing pavement strength, and delaying asphalt aging.

CN112982109AActive Publication Date: 2021-06-18蚌埠市思创沥青路面工程有限公司
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
Publication Date
2021-06-18

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Abstract

The invention relates to a preventive maintenance method for an asphalt concrete pavement. According to the method maintenance operation is implemented based on a maintenance truck. The method comprises the following specific operation steps: S1, pavement cleaning: removing sundries on the pavement; S2, pavement heating: heating and softening the pavement by using a heating mechanism; S3, coating of a curing agent: coating the pavement with the curing agent by using a curing mechanism; S4, adding and covering of a mixture: subjecting the pavement to adding and covering with a new and hot asphalt mixture through an adding and covering mechanism; S5, leveling: flattening the new and hot asphalt mixture through a leveling mechanism; and S6, compacting: rolling the new and hot asphalt mixture by a compacting mechanism to obtain a protective layer. According to the invention, heating softening of the pavement induces self-repairing of disease parts, pavement diseases are filled and repaired by coating with the curing agent, excavation of a damaged asphalt concrete pavement is not needed, and curing efficiency is improved; and the pavement is covered with the new and hot asphalt mixture, a compact and flat protective layer is formed after flattening and rolling, the protective layer and the pavement form an integral new pavement, so the effect of prolonging the service life of the asphalt concrete pavement is facilitated.
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Description

technical field

[0001] The present application relates to the technical field of road surface maintenance, in particular to a preventive maintenance method for asphalt concrete pavement. Background technique

[0002] Road preventive maintenance refers to a maintenance measure taken to improve the functional status of the pavement system and improve the service level of the road surface at the initial stage of road surface function decay and when the structural strength is sufficient. The significance of service life, reducing pavement life cycle costs and saving maintenance and repair costs.

[0003] In the early stage of road surface function decay, there are usually pits, bulges, cracks, muddying, subsidence, rutting, looseness and other diseases. The current preventive maintenance is generally to remove the diseased parts on the road with diseases, fill them with new materials, and remove them. Re-roll maintenance and open traffic. However, the above scheme needs to exc...

Examples

Embodiment Construction

[0044] The following is attached Figure 1-5 The application is described in further detail.

[0045] The embodiment of the present application discloses a preventive maintenance method for asphalt concrete pavement. refer to figure 1 , figure 2 , in the preventive maintenance method of asphalt concrete pavement, a maintenance vehicle 1 is used to maintain the asphalt concrete pavement. The maintenance vehicle 1 is provided with a heating mechanism 2, a maintenance mechanism 3, a covering mechanism 4, a leveling mechanism 6 and a compacting mechanism in sequence. Institution7. The maintenance vehicle 1 includes a vehicle body 11 and a support arm 12. The support arm 12 is arranged at the rear of the vehicle body 11, one end of which is connected to the vehicle body 11, and the other end extends away from the vehicle body 11, and is supported on the compacting mechanism 7 .

[0046] refer to figure 1 , the preventive maintenance method of asphalt concrete pavement includ...