Grouting is a construction process used to fill gaps, cracks, and voids in structures to improve strength and stability. It involves injecting or applying a fluid-like material, commonly cement-based or chemical grout, into spaces within concrete, masonry, or soil. Once hardened, the grout enhances load-bearing capacity and prevents water infiltration. Proper surface preparation and controlled application ensure effective bonding and durability. Grouting is widely used in foundations, tunnels, tiles, and structural repairs. It helps restore integrity, reduce leakage, and extend the lifespan of buildings and infrastructure, making it an essential technique in both new construction and maintenance projects.