
CFS carbon fiber was used to repair concrete grade beams in multiple multi-family dwellings in a St. Louis residential complex.
Carbon fiber's most famous foundation repair application is reinforcing basement foundation walls. That is hardly its only foundation repair use, however.
When water manages to infiltrate concrete stem walls or grade beams, it can cause the rebar to begin to oxidize. Because the iron oxide molecules are larger than the ones they were replacing, the corrosion causes the rebar to expand.
This expansion stresses the concrete surrounding the rebar, causing cracking and structural damage to the foundation.
The confining strength of the carbon fiber, however, can counteract this outward pressure on the concrete, while simultaneously strengthening the foundation.