Chemical Underpinning

Pittsburgh, Pennsylvania

The Job:

Water began to seep through the floor of the shop, break room and bathrooms inside a manufacturing facility. Investigation determined that a water line had broken, and weekend soils below the floor, causing the settlement. Voids were also present.

The Challenge:

The client’s primary concern was addressing the stability of the area without affecting normal usage.

CJGeo’s Solution:

CJGeo proposed chemical grouting to stabilize the weakened soils, along with polyurethane grouting to fill voids. Previous repairs to address floor settlement had been completed, so a hydroinsensitive undersealing polyurethane grout was used to ensure stability without lifting the slab.