PU injection grouting is a highly effective method for stopping active water leaks in concrete structures. It works by injecting polyurethane resin into cracks and joints, where it expands and seals the water pathways. PU injection grouting is commonly used for basements, tunnels, retaining walls, and roofs. This technique provides a permanent waterproof seal and strengthens the struc... https://shakuraconstruction.sg/services/pu-injection-grouting/