PU injection grouting is an effective waterproofing method used to stop active water leakage in concrete structures. This technique involves injecting polyurethane grout into cracks and joints, where it expands and seals voids completely. PU injection grouting is ideal for basements, roofs, tunnels, and retaining walls. By using PU injection grouting, water penetration is permanently ... https://shakuraconstruction.sg/services/pu-injection-grouting/