A section of the foundation of this house has broken loose, causing an extensive series of horizontal cracks.
When a basement is built, they use snap ties to hold the forms and the rebar together. Sometimes, water migrates through an opening in the concrete around one of the ends of the snap ties and reaches the rebar. The water causes the rebar to expand—up to seven times the original size—causing the concrete to blow out.
Today we’re working with a cast in place foundation. The 38-foot long basement wall has moved laterally and we need to stick some soldier beams on it.
So there was a patch on a wall using hydraulic cement. Below that, there’s a break in the footing. And there’s no associated breaks in the rest of the foundation, so it’s in a very bound up kind of situation.
Today we’re in a cast-in-place foundation. We’ve got some cracks and possible weak spots in the concrete.