Meaning
Concrete slab remediation techniques utilize the expansive force of chemical reactions to lift settled flooring or stabilize loose subgrades. During polyurethane resin jacking, technicians inject a two part liquid into the soil beneath the concrete where it expands into a high density foam. This method fills voids and applies upward pressure to restore the slab to its original elevation.
Injection Pressure
Specialized pumps deliver the material through small holes drilled in the pavement to target specific areas of settlement.
Material Expansion
Chemical reaction between the resin and the catalyst occurs within seconds of mixing to create a rapid volume increase. This expansion exerts enough force to lift heavy structural slabs or stabilize shifting foundations. The use of polyurethane resin jacking minimizes downtime because the foam cures and reaches full load bearing capacity in less than half an hour.
Unlike traditional cement grouting, the lightweight foam does not add high weight to the underlying soil which prevents further subsidence. Operators monitor the lift in real time using laser levels to ensure the floor returns to the specified flatness.
Load Capacity
Hardened foam supports the weight of industrial machinery and heavy vehicle traffic without compressing or washing away. Failure to calculate the volume of the void correctly leads to over lifting or wasted material.
