Pavement milling

Milling can also remove distresses from the surface, providing a better driving experience and/or longer roadway life.

[8] Using milling instead of other methods, such as rolling them in, means that the rumble strips can be added at any time after the road surface has hardened.

[8] Another example is to modify the roto-milling head to create slots in concrete slabs for the dowel bar retrofit process.

Following dowel placement, the slots are then typically backfilled with a non-shrink concrete mixture, and the pavement is diamond-ground to restore smoothness.

[9] In the USA, the Asphalt Recycling and Reclaiming Association has defined five classes of cold planing that the Federal Highway Administration has recognized.

[2] The scrolls are positioned around the drum such that the ground pavement is moved toward the center and can be loaded onto the machine's conveyor belt.

[2] The tool holders can wear out over time and can be broken if highway structures like manholes are encountered while milling.

[2] The majority of milling machines use an up-cut setup which means that the drum rotates in the direction opposite that of the drive wheel or tracks, (i.e. work surface feeds into the cut).