Rehabilitation in which the top inch or more of worn pavement is removed with a milling machine and replaced with an equal thickness of new mix, keeping curb reveal, drainage and bridge clearances unchanged. On city streets the milled lane is usually repaved the same shift so traffic is not left on a rough cut. Crews tack a milled surface heavier than fresh asphalt because its texture soaks up more.
It's a two-inch mill and fill on Main, millers start at seven and we follow them in at nine.
Also heard as
- mill and overlay
- mill and pave
Related terms
Milling
Grinding off the top of an existing pavement with a rotating cutter drum before repaving.
Tack coat
A thin spray of asphalt between layers that bonds the new lift to the surface underneath.
RAP
Reclaimed asphalt pavement: old asphalt milled or crushed and fed back into new mix as aggregate and binder.