Horizontal Crack or Bowing in Concrete Block

Bowed block wall prior to constructing new concrete wall.

Reinforcing steel set in front of concrete block wall in preparation for new shotcrete wall. Foundation wall was "braced" with carbon fiber straps that failed.

Diagonal and horizontal cracks in concrete block foundation wall.

Relatively long block foundation wall bowed inward with horizontal crack.

Close up of relatively large horizontal crack in block wall tuck pointed.

Block foundation wall bowed inward with horizontal and diagonal cracks.

First row of concrete blocks above floor sliding past lowest block course which is restrained by the concrete floor slab. This is a shear failure of the mortar joint.

Bowed block foundation wall with large horizontal crack.

Block foundation wall partially removed showing shifting and bowing caused by lateral soil pressure.

Severely bowed and cracked concrete block foundation wall with shear failure along bottom.

Severely bowed and cracked foundation wall with shear failure along bottom.

Close up view of shear failure along mortar joint. First block course up from floor.

Severely bowed concrete block foundation wall with shear failure along bottom.

Concrete block joints cracking at perimeter of tie back anchor.

Carbon fiber strap on bowed block foundation wall. Wall continues to move inward.

Connection failure of carbon fiber strap to base of concrete block foundation wall. Wall continues to shear inward along bottom.