PU injection grouting is an effective waterproofing method used to stop active water leaks and seal cracks in concrete structures. This technique involves injecting polyurethane material into cracks and voids, where it expands and forms a watertight seal. PU injection grouting is commonly applied for basement leaks, roof slabs, walls, and tunnels. Professional PU injection grouting pr... https://shakuraconstruction.sg/services/pu-injection-grouting/