| |
|
|
|
|
LOW STRAIN PILE INTEGRITY TESTING (PIT TESTING) (conforms to ASTM D5882-07)
The Pile Integrity Tester (PIT) is used for bored piles, driven concrete shafts, concrete filled piles
or drilled shafts. It detects potentially dangerous defects such as major cracks, necking, soil inclusions
or voids.
PIT Testing is performed with a hand held hammer, a sensitive accelerometer and the PIT Tester. A compressive
wave is generated by tapping the pile head with a hammer. When the downward compression wave encounters a
change in cross section or in concrete quality, it generates an upward tension wave that is obtained at the
pile top.
The velocity recorded along with the subsequent reflections from the pile top or pile discontinuities are
graphically displayed. The effectiveness of the system is limited to pile length not exceeding 30 to 60 pile
diameters.
PIT Testing does not require advances planning or access tubes. This makes it the most affordable option
when the pile integrity is questioned.
BENEFITS:
* No advance planning
* Quick and Economical
* Can verify every pile on site
* Conforms to ASTM D5882-07
PIT Sample Graph
|
| |
|
|
|
 |