Raft Or Mat Foundation

The mat foundation which is sometimes known as a raft foundation is a combined footing that could cover the whole area under a structure supporting several walls and columns.

Raft or mat foundation.

A raft or mat foundation is a large continuous rectangular or circular concrete slab that carries the entire load of the superstructure and spreads it over the whole area beneath the building. It is considered as one type of shallow foundation and is useful in controlling the differential settlement. Raft or mat foundations a raft foundation also called a mat foundation is essentially a continuous slab resting on the soil that extends over the entire footprint of the building thereby supporting the building and transferring its weight to the ground. Raft foundation is a thick reinforced concrete slab which spreads over a large area of soil and provides support for several columns and load bearing walls.

It is also called as mat foundation which are widely used foundation system. Raft mat foundation is used in those places where we have less bearing capacity of the soil. Raft foundation is a thick concrete slab reinforced with steel which covers the entire contact area of the structure like a thick floor. Raft foundation is mat foundation now what is raft foundation.

Raft foundations sometimes referred to as raft footings or mat foundations are formed by reinforced concrete slabs of uniform thickness typically 150 mm to 300 mm that cover a wide area often the entire footprint of a building. Raft foundation is a type of shallow foundation. Flat plate type raft. When the raft foundation is supported on piles it is called a piled raft.

Mat foundations are sometimes preferred for soils that have low load bearing capacities but that is going to need to support high wall or column loads. Raft foundation is also known as mat foundation. Raft foundation is also known as a mat foundation. 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.

Contents types of raft foundation1. It declines the contact pressure in comparison with conventional strip or trench footing. The raft foundation is a very commonly used type of foundation system. Don t confuse about raft and mat foundation.

Raft foundation is the essentially continuous slab which is resting on the hard soil which extends over the entire building footprint.