What is the primary purpose of wire mesh in concrete slabs?

The primary purpose of wire mesh in concrete slabs is to prevent cracks from opening. When concrete cures, it undergoes shrinkage, which can lead to cracking, especially in large slabs. The incorporation of wire mesh helps to control these cracks by providing tensile strength, which keeps the sections of the slab together even if they do crack. This reinforcement is critical because it allows the slab to perform better under stress and enhances its overall durability. By keeping small cracks closely aligned, wire mesh minimizes the visual impact and maintains the integrity of the surface, reducing the likelihood of further damage.

While bonding is important, wire mesh does not specifically improve bonding between the concrete and any surface. Insulation also is not a function of wire mesh; insulation materials serve that purpose separately. Enhancing load-bearing capacity is more related to the thickness of the slab and the overall design rather than the mere presence of wire mesh. Therefore, the role of wire mesh as a crack mitigator is essential in maintaining the performance and longevity of concrete slabs.