Concrete slabs are flat, horizontal surfaces made from a mixture of cement, water, and aggregates like sand and gravel. They are commonly used in construction for floors, foundations, and pavements due to their strength and durability. Concrete slabs can be poured on-site or precast in a factory, allowing for various applications in residential and commercial buildings. These slabs come in different thicknesses and sizes, depending on their intended use. For example, a reinforced concrete slab may include steel bars or mesh to enhance strength, making it suitable for heavy loads. Proper curing and finishing techniques are essential to ensure the longevity and performance of concrete slabs.