Injection grouting is a process used to fill voids, cracks, and joints in concrete, masonry, and other structures. It involves injecting a material, such as epoxy or polyurethane, into the void to fill it and create a strong bond. Injection grouting can be used to repair a variety of issues, including water leaks, foundation settlement, and structural damage. It is a cost-effective and efficient way to repair and strengthen structures, as it can be done without the need for extensive excavation or demolition. Overall, injection grouting is a reliable and effective solution for repairing and reinforcing structures.