TESTCRETE systems utilize technology for quality inspection. Ultrasonic and sonic waves and gamma rays are used in pile testing to detect faults at pile perimeter, internal sections and transverse cracks.

Concrete pile testing using Testcrete systems provides reliable results, detects faults such as necking, cracks, voids, soil inclusions, honeycombing, concrete segregation

For an article in the subject of pile testing see : testing piles article.

Crosshole ultrasonic testing principles and practice - Tests the area between parallel ducts.
Low strain testing principles and practice - Affected by surrounding soil, it can detect big defects and transverse cracks
Gamma gamma testing principles and practice - Tests the area surrounding the duct so foundation perimeter is tested.