Elimination of seepages using hydroactive resin injection

This type of injection is used to re-establish sealing in underground structures: cellars, tunnels, sewage systems, telephone network infrastructures, etc.

Seepages and leaks in underground structures can be sealed by adding waterproofing membranes or coatings, or injecting hydroactive organic compounds. Hydroactive grouts are made of liquid, low-viscosity polyurethane pre-polymers.

When the hydroactive grout comes into contact with water (even if it is just damp), it reacts and forms CO2 and undergoes a large expansion.

Once this expansion is complete, the grout solidifies and becomes rigid or flexible, in a stable and durable state.