Cement Silo Condition Assessment Dixon, IL

Investigated Silo

Concern was raised among plant engineering and owners when the aforementioned concrete structure container’s façade started cracking. GPR scan was performed on the side of the cement silo from a boom lift to collect information non-destructively of the structure for further analysis.

Several 2D line scan was collected horizontally and vertically on the silo.

Horizontal data sampling

The red box indicates the GPR antenna being moved horizontally on the surface to collect information parallel to each other taken from different height.

Radar image showing the horizontal (hoop steel) and vertical rebar location, estimated depth.

After the assessment was complete the GPR images were proving that the construction design is different from the as-built drawings. Hoop steel reinforcement were found deeper than the vertical steels in the concrete structure where the structural issue was detected (cracking, separation).