Refurbishment using road milling process can maintain the level of elevation of the original pavement. The milling process can cut away the damaged pavement, from the new material to fill existing space, after the original road compaction and high, maintaining the original level elevation road, which makes walking through the viaduct or overpass road culvert will not load on the bridge an impact load, and bridges and culverts by elevation unchanged.
Ensure a good combination of old and new pavement materials to improve their life. The milling process can use the side and bottom of the pit filler neat, uniform depth to form a combination of old and new material easy toothed surface geometry, so that after the renovation of the new pavement life greatly improved.
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