PU injection grouting plays a critical role in addressing severe water leakage problems without extensive demolition. By injecting expanding polyurethane material into cracks, PU injection grouting blocks water pathways and restores waterproofing performance. This method is commonly used in roof slabs, lift pits, basements, and underground structures, ensuring reliable and cost-effect... https://shakuraconstruction.sg/services/pu-injection-grouting/