Polyurethane grouting seals voids, cracks, and joints and realigns slabs by injecting an expanding polyurethane grout into or adjacent to a foundation.
- Control groundwater
- Seal voids, cracks, and joints
- Realign slabs
The polyurethane grout used during this process is injected under low pressure slowly. The injected grout then expands to fill the crack or void in the slab of foundation. This technique has many variations in elasticity, expansion characteristic, reaction with water, reaction time, and viscosity of the grout. It can be either single or multi-component and involve a reactant or react when water is present.