Preventive maintenance method for asphalt concrete pavement

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.

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...

AI Technical Summary

Problems solved by technology

However, the above scheme needs to excavate the damaged asphalt concrete pavement, which reduces the maintenance efficiency; and the repaired part is easy to segregate from the original pavement, making it difficult to restore the pavement performance to the original level, resulting in poor effect of prolonging the service life of the pavement

[0004] In view of the related technologies mentioned above, the inventor believes that there is a defect that the preventive maintenance efficiency of the asphalt concrete pavement is low, and the effect of prolonging the service life of the asphalt concrete pavement is not good.

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