What is raft in construction?
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Raft foundations, also sometimes called Mat Foundations, are a type of shallow foundation that can be used to support a structure built on soil with low bearing capacity. Raft foundations are formed by reinforcing a slab of concrete with steel rods or mesh and then pouring the concrete over a large area, typically the entire footprint of the building.
The reinforced slab effectively spreads the weight of the building over a larger area than a conventional foundation, reducing the stress on the underlying soil and providing greater stability for the structure.