Reduce the chance your concrete will crack from expansion and contraction and other tensile stresses. Concrete inherently stands up to high compressive loads—adding this rebar strengthens it against pulling forces as well. The rebar's surface is textured; poured concrete fills in the gaps between those ridges to create a strong bond.

Carbon steel rods expand and contract at the same rate as concrete, further reducing the risk of cracking. Cut, bend, and weld them onsite. They can also be formed into fences, shelves, and other structures.