PU injection grouting is an effective waterproofing solution used to stop active water leakage in concrete structures. This method involves injecting polyurethane resin into cracks, joints, and voids where it reacts with moisture and expands to form a watertight seal. PU injection grouting is ideal for basements, roof slabs, retaining walls, and tunnels, providing fast application, mi... https://shakuraconstruction.sg/services/pu-injection-grouting/