PU injection grouting offers reliable repair for concrete cracks and leakage problems caused by water pressure and structural movement. The polyurethane material reacts with moisture and expands to fill voids and fine cracks. Professional PU injection grouting is ideal for underground structures, water tanks, and lift pits. This technique ensures durable waterproofing, improves struct... https://shakuraconstruction.sg/services/pu-injection-grouting/