Construction method of green upgrading and reconstruction of old cement concrete pavement

Abstract

This application relates to a construction method for green upgrading and transformation of old cement concrete pavement. By making a multi-stage crushing device, the diseased road surface is crushed into concrete blocks, and put into the multi-stage crushing device. The concrete fragments pass through the multi-stage crushing device. After crushing, the particle size becomes more uniform, and during the moving process of the multi-stage crushing device, the paving work on the diseased road surface is completed, which is conducive to improving the bearing capacity and construction efficiency of the new road surface in the later stage.

Description

technical field [0001] The present application relates to the technical field of pavement reconstruction, in particular to a construction method for green upgrading and reconstruction of old cement concrete pavement. Background technique [0002] Most of the cement concrete pavements built in our country since the 1980s are close to the service life. Although some have not reached the design life, due to the sharp increase in traffic volume, the increasingly heavy vehicle axle load and the design, construction and other reasons, the pavement Damage, use quality decline, affect the use function of the road, so the reconstruction of old cement concrete pavement is of great significance. [0003] In the related technology, when repairing and reconstructing the old cement concrete pavement, it is necessary to pave the pavement structure layer on the cement concrete pavement. First, the concrete layer of the old pavement disease section is crushed and impacted by the pavement cru...

AI Technical Summary

Problems solved by technology

[0004] In view of the above-mentioned related technologies, the inventor believes that there are the following defects: in the actual construction process, only relying on the pavement crusher to break the pavement, it is easy to have obvious differences in the size of the concrete blocks, it is difficult to lay evenly, and the bearing capacity of the new pavement in the later stage will be greatly reduced. Capabilities are adversely affected, so there is still room for improvement

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