Raft foundation is also known as mat foundation.
Define mat or raft.
Definition of raft foundation along with working principle when to choose raft types of raft foundation materials of raft foundation raft construction steps etc are discussed below.
Raft definition a more or less rigid floating platform made of buoyant material or materials.
An inflatable rubber raft.
When the raft foundation is supported on piles it is called a piled raft.
A raft or mat foundation consists of a large concrete slab or a slab and beam system resting on soil or rock and supporting all the loads through a number of columns or walls.
Raft slab of uniform thickness is very popular because of simplicity in design construction.
The raft foundation is a very commonly used type of foundation system.