What are the two types of concrete reinforcement?

The two types of concrete reinforcement are WWR (Welded Wire Reinforcement) and rebar (reinforcing bar). WWR consists of grids of wire that are welded together and used to enhance the structural integrity of concrete by distributing loads and preventing cracking. It's commonly used in slabs, walls, and pavements.

Rebar, on the other hand, consists of steel bars that are embedded within concrete to provide tensile strength since concrete is strong in compression but weak in tension. The combination of WWR and rebar helps to improve the durability and performance of concrete structures under various loads and conditions.

The other options presented do not accurately identify types of concrete reinforcement used in construction. Textured and rolled, light commercial and heavy gauge, or rod and WWM (Welded Wire Mesh) do not represent the standard classifications used in the reinforcement of concrete.