What is one purpose of slab reinforcement?

One primary purpose of slab reinforcement is to prevent cracking. Concrete inherently has low tensile strength, meaning it can crack under tensile loads or when subjected to environmental factors such as temperature changes or moisture variations. Reinforcing the slab, typically with steel rebar or wire mesh, helps distribute loads more evenly and provides additional tensile strength. This reinforcement allows the concrete to better withstand bending forces and reduces the risk of cracking due to stress, shrinkage, or thermal expansion.

While other options mention different aspects like visual appeal, insulation, or curing time, they don't relate to the fundamental structural integrity and performance concerns that slab reinforcement addresses. The focus of slab reinforcement is specifically on enhancing durability and preventing structural failures, making it integral to successful concrete slab construction.