Flat slab

flat slab

[¦flat ¦slab] (civil engineering) A flat plate of reinforced concrete designed to span in two directions.

Flat slab

A concrete slab reinforced in two or more directions and supported directly on column capitals; also called mushroom slab because of the shape of the enlarged capitals.

flat slab

A concrete slab which is reinforced in two or more directions, usually without beams or girders to transfer the loads to supporting members.