Removal and replacement of the slab was unacceptable due to the cost and the high disruption factor to the parking garage traffic. EagleLIFT was chosen for a number of reasons, such as a 15-minute curing time, virtually no disruption to vehicular traffic, and a project cost that was approximately 50% less than removal and re-pouring of the slab.
Solutions and Results
EagleLIFT, Inc. drilled small 5/8” holes (size of a penny) and injected the patented polymer resins, which expand and lift the settled areas in a matter of minutes. Once injected, the resins expand to 20 times their liquid volume and create an extremely controllable lifting force of approximately 5 tons/sq.ft. Once the resins had compressed and densified the sub-grade, the ramp slab was lifted all the way back to its original elevation. The image to the left shows the settlement that had taken place.