PU injection grouting is an effective waterproofing method used to stop active water leakage in concrete structures. This technique involves injecting polyurethane resin into cracks, joints, and voids where water seepage occurs. PU injection grouting reacts with moisture, expands, and forms a flexible waterproof seal. It is ideal for basements, tunnels, retaining walls, and roofs, pro... https://shakuraconstruction.sg/services/pu-injection-grouting/