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 resin into cracks, joints, and voids where water penetration occurs. PU injection grouting expands upon contact with water, forming a durable, flexible seal that prevents further leakage. It is widely used for... https://shakuraconstruction.sg/services/pu-injection-grouting/