Case Studies

Problem: Frost heaving had affected the concrete walkway leading to the Highway Department, creating a major tripping hazard. One of the concrete slabs had heaved almost an inch over the winter

EFT provided slabjacking work for a settling concrete slab at the Harvard Graduate School in Boston, Massachusetts. A cement slurry was injected through the concrete to fill the void below.

Problem: The concrete walkways around the existing restaurant had differentially settled, causing multiple significant tripping hazards to pedestrians. The concrete slabs were reportedly poured on fro

Problem: Miles of concrete sidewalk had differentially settled, causing numerous tripping hazards for pedestrians. Furthermore, the pool patio for this luxury apartment complex had differentially sett

The site contained about 15-20 feet of buried blast rock fill. The difficult soils would only accommodate a drilled piling system capable of advancing through the rock fills.

EFT used a pressure grouting process, commonly known as mudjacking and slabjacking, to lift about 200 feet of sunken concrete. The concrete walkways were located outside of a busy commercial building

Four acres of concrete slabs experienced a phenomenon known as slab curling. The concrete slabs effectively curled upwards and were cracking and deteriorating from heavy forklift traffic.

The concrete floor of this 10 year old house was raised with polyurethane slabjacking. The concrete was lifted over three inches in a single day.

In lieu of the conventional rip and replace approach, EFT slab jacked the concrete floor with polyurethane foam injections. The under-slab void was ultimately filled and the concrete was lifted back.

Uneven concrete slabs were repaired through a series of polyurethane foam injections. The process provided a cost effective means of leveling the walkways.