What is restrained slab?

A restrained slab is a type of concrete slab that is fixed or held in place at certain points, preventing it from expanding or contracting freely due to temperature changes or moisture variations. This restraint can lead to internal stresses, which may result in cracking if not properly designed. Typically, restrained slabs are used in situations where structural integrity is critical, such as in buildings or bridges. Proper consideration of these stresses during design and construction is essential to ensure durability and performance.