Solution:
Northeast Helical LLC mobilized a pressure injection pump and grout plant to repair the concrete slab. The slab was reinforced in several areas to maintain a stable surface during the lifting process. Multiple access holes were drilled in the slab through which the slabjacking materials were pumped through. The underslab voids were initally filled, and then the grout was pumped under pressure raising the concrete slab up over four inches.

This project was successfully completed in three working days.