PU Grouting and Compaction Grouting

PU Grouting and Compaction Grouting

Polyurethane (PU) grouting and compaction grouting are extremely successful structural repair procedures for sealing leaks, stabilizing soils, and strengthening foundations. PU grouting is injecting expanding polyurethane resin into cracks, joints, or gaps in concrete structures. When exposed to moisture, the glue expands and cures quickly, providing a flexible and waterproof barrier. This approach is very effective for preventing water penetration in basements, tunnels, retaining walls, and water tanks. In contrast, compaction grouting is the process of injecting a stiff grout mixture into the soil to densify and strengthen loose or weak ground, hence enhancing load-bearing capability. These methods are perfect for managing structural settlement, improving ground conditions, and restoring old infrastructure without requiring substantial excavation or downtime.

Advantages of PU Grouting and Compaction Grouting

• Seals active water leaks fast and efficiently.
• Stabilizes weak or unstable soil beneath foundations.
• Non-invasive, with minimum damage to structures.
• Increases bearing capacity and soil density.
• Suitable for waterproofing and crack closing.
• Applicable in restricted or difficult-to-access regions.
• Fast curing time and long-term performance
• Reduces the possibility of further settling or movement.