structural slab
Exposed aggregate is a type of concrete that has a textured surface. The texture is created by adding gravel or other course aggregate to the mix. This type of concrete is often used for sidewalks, patios, and driveways.
It is used extensively in various types of construction projects.
The house is built on a concrete slab. The slab serves as a foundation on which the walls are and rooms are built. The slab is also used to stabilize the house and keep it level.