Steel reinforcement, often referred to as rebar, is a construction material used to enhance the tensile strength of concrete structures. Concrete is strong in compression but weak in tension, so adding steel bars helps prevent cracking and structural failure. The combination of concrete and steel creates a composite material that can withstand various forces. Typically, rebar comes in different sizes and grades, allowing engineers to choose the appropriate type for specific projects. It is commonly used in foundations, beams, slabs, and other structural elements. Proper placement and bonding of rebar within the concrete are crucial for ensuring the durability and safety of the construction.