Pile Integrity Testing (PIT)

ACS provides Pile Integrity Testing (PIT), a “low strain” non-destructive testing procedure, which uses the pulse-echo method to check the length of, or detect defects in cast-in-place or driven piles.  This test is routinely used to determine lengths for existing piles under existing structures.

The testing procedure entails temporarily attaching a sensor to the top of the pile. The pile is then struck with a calibrated hammer, and the wave propagates down and back through the concrete. The wave is analyzed to determine pile integrity and size.

PIT Sample Plot

For a PDF version of the sample PIT plot click here.