PU injection grouting is an effective method for sealing leaks and stopping water infiltration in concrete structures. This technique uses polyurethane resin that expands upon contact with water, filling cracks, joints, and voids to create a durable waterproof barrier. It is commonly used in basements, tunnels, roofs, and retaining walls. PU injection grouting restores structural inte... https://shakuraconstruction.sg/services/pu-injection-grouting/