Geodiagnostics LLC carries out non-destructive testing of underground structures by acoustic and ultrasonic crosshole sounding.

We check and monitor the continuity of concrete slurry walls, jet-grouting and frozen soil fences, grout curtains, bored and precast piles, tunnel linings and road foundations, and we determine the strength of concrete and soil-cement in place, without core sampling. The methods and the APZ-1 apparatus descend from work begun at the All-Russian Scientific Research Institute of Exploration Methods (VITR) in the late 1960s and continued by Geodiagnostics from 2006.