A self-healing process and equipment for network crack repair for road maintenance

Abstract

The invention discloses a network crack repair self-healing process and equipment for road maintenance, which comprises the following steps: step 1: use a 20-ton planer and miller to plan and mill the asphalt mixture on the road surface, and plan to remove 10-15 cm Continue to plan and mill the base layer of the lower layer of the road for 10‑15 cm, and the planing and milling width is moderately planing and milling for the specific optic fissure width; Step 2: Grind and scrape the bottom of the road with a high-carbon stainless steel tool; Step 3: Use The exhaust fan exhausts the planing and milling parts, and at the same time, the dust is concentrated through the bag filter; step 4: install a protective soft iron sheet on the side wall of the base layer, and install a cooled asphalt film on the side wall of the surface layer; step 5: Fill cement concrete into the base layer to form a cement concrete layer; Step 6: Add repair agent and cementing agent to the asphalt mixture, put the asphalt mixture on the cement concrete layer, and press the asphalt mixture with a road roller material. The present invention has the effect of being able to repair network cracks.

Description

technical field [0001] The invention relates to the technical field of road maintenance and repair, in particular to a network crack repair self-healing process and equipment for road maintenance. Background technique [0002] After the highway is completed and opened to traffic, due to the wear and impact of the wheels, the erosion and weathering of natural forces such as heavy rain, floods, sandstorms, ice and snow, sun exposure, and ice melting, as well as man-made damage and some defects left over from construction, the quality of the road will be affected. will gradually decrease. Therefore, after the highway is completed and opened to traffic, maintenance and repair measures must be taken, and continuous updating and improvement must be carried out. Road maintenance must repair the damaged part in time, otherwise it will lead to increased investment in repair projects, shorten the service life of the road, and cause losses to road users. Road maintenance must also ta...

AI Technical Summary

Problems solved by technology

Although this kind of flexible base asphalt pavement structure used for arterial highway repair can effectively prevent the pavement structure from cracking easily, improve the protection effect on the pavement, and prevent the impact of excessive water on the pavement, but in the actual practical process, because the asphalt The pavement will crack due to long-term trucks or other heavy trucks passing by

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