Freyssinet, Inc. has a significant experience
in NDT and grout remediation techniques applied to PT structures. However,
Freyssinet, Inc. is not limited to this kind of inspection and repair,
but can handle a much broader scope of services when it comes to inspection,
evaluation and repair of any kind of structures.
Freyssinet, Inc. has probably the most experienced
and qualified team of specialists when it comes to NDT and grout remediation
of PT tendons.The following are some of the services available:
Location of internal tendons using Ground
Penetration Radar techniques.
Void detection in tendons using Impact
Echo, if it becomes necessary.
Inspection of external tendons including
visual inspection via windows or using tendon vibration techniques.
Non-destructive detection of wire breaks
in tendons using electro-magnetic techniques like Tensiomag.
Non-destructive detection of tension loss
in bars or bolts using the UPUS method.
Limited invasive inspection of internal
or external tendons via special drilling and videoscope.
Volume of voids measurement using equipment
able to compensate for leaks in the voids.