Mat Foundation

Mat Foundation

A mat foundation is a combined footing which covers the entire area beneath of a structure and supports all the walls and columns. It is also known as raft foundation. Mat foundation is applicable when:

• Allowable bearing pressure is low.
• The structure is heavy.
• The site is with highly compressible layer.

The mat foundation can be further classified into following types:

• Flat slab type.
• Flat Slab thickened under column.
• Two way beam and slab type.
• Flat slab with pedestals.
• Rigid frame mat.
• Piled mat.