A combined slab and foundation/footing is sometimes referred to as what type of slab?

A combined slab and foundation/footing is sometimes referred to as what type of slab?

• A. Monolithic slab
• B. Raft slab
• C. Slab-on-grade
• D. Joint slab

Answer: (D)

When a concrete slab and its footing are poured in one operation, that’s called a monolithic slab. This single pour creates a continuous footing-and-slab member, which simplifies formwork, speeds construction, and helps distribute loads evenly into the ground. Slab-on-grade is just a slab poured on the ground and doesn’t inherently imply the footing is poured as part of the same unit. A raft slab refers to a large, thick slab used to spread loads over weak ground and is chosen for different conditions. A joint slab isn’t a standard term for this setup; joints in slabs control cracking rather than define the foundation type.

When a concrete slab and its footing are poured in one operation, that’s called a monolithic slab. This single pour creates a continuous footing-and-slab member, which simplifies formwork, speeds construction, and helps distribute loads evenly into the ground. Slab-on-grade is just a slab poured on the ground and doesn’t inherently imply the footing is poured as part of the same unit. A raft slab refers to a large, thick slab used to spread loads over weak ground and is chosen for different conditions. A joint slab isn’t a standard term for this setup; joints in slabs control cracking rather than define the foundation type.