Polyurethane Ground Stabilisation

Polyurethane Ground Stabilisation (deep injection) is a construction and geotechnical method that uses expanding polyurethane foam to improve or stabilise soil and ground conditions.

The material is injected into the ground where it expands, hardens (cures)  and binds loose soil, improving strength and stability.

How it works

• Small holes (usually 10 – 16mm) are drilled into the ground or slab.
• Liquid Polyurethane resin is injected into the holes under controlled pressure.
• The resin expands and hardens, filling voids, compacting loose soils, and lifting or supporting the structure above.

Application Areas

• Lifting sunken slabs (e.g. pavements, driveways & warehouse floors).
• Stabilising weak or loose soils under foundations or roads.
• Filling underground voids (e.g. caused by erosion or sinkholes).
• Reducing water infiltration in soil (some polyurethane resins are hydrophobic).