NDT Services specialise in pile integrity testing of CFA, Large Bore and Minipile foundations. Sonic Echo or Transilent Dynamic Response methods of testing are employed, both providing fast, economic and reliable results.

Oscillation of the pile head enables an acoustical survey of the pile, which can identify potential discontinuities such as cracks, voids and changes in cross sectional area. A secondary feature of the test provides positive identification of the pile toe seat.

On site analysis of the received signal can identify at what point along the pile shaft the potential discontinuity occurs. An instant assessment of each pile tested can therefore be achieved. Where possible rectification of any anomaly can be carried out before subsequent retests are applied.

A full report is dispatched after the site visit and contains copy printouts of signals obtained from each pile tested and an indication of the pile toe seat reflection figure. Hard copy signal traces are compiled within the report format and supplied in duplicate or as requested.

The test results are interpreted in such a way as to make the signal change point apparent and the approximate pile length calculated. Signal impedance variations are immediately recognisable.

NDT services cover all the UK sites with a fast, reliable testing service – reporting is always carried out directly with the client.