REINFORCED MESH WIRE

Reinforcement mesh, or steel fabric, is a premade lattice of rebar used to improve the lateral strength of concrete slabs, walls, and other constructions.

The main reason to use reinforcing mesh is exactly what it sounds like: to reinforce the structural integrity of concrete to improve tensile strength and prevent cracks. Concrete mesh can minimise the presence of cracks; however, it won't prevent them entirely.