oversite concrete

oversite concrete

[¦ō·vər‚sīt ′käŋ‚krēt]
(building construction)
A layer of concrete that is installed below a slab or other type of floor surface.

oversite concrete

An underlayer of concrete below a slab or other flooring; so placed to prevent disturbance of the ground below, to provide a relatively even and firm surface for the placement of the next layer, and to keep out ground air and moisture.