Home > Plant Certification > Unbonded Tendon Plants
New Format
Certification of Plants Producing Unbonded Single Strand
Tendons (Process Certification)
Launched in 1989, the Post-Tensioning Institute (PTI) program for
Certification of Plants Producing Unbonded Single Strand Tendons has
been developed to provide independent certification of a plant’s
extrusion and/or fabrication process and its capability to produce
standard and/or encapsulated unbonded single strand tendons. This
certification program also includes evaluation of calibration practices
for jacks and gauges used for stressing single strand tendons. The
program is applicable to all facilities whether fixed or mobile.
The certification of a plant under this program indicates that the
plant and the personnel are capable of producing unbonded single strand
tendons in conformance with the Post-Tensioning Institute’s
Specification for Unbonded Single Strand Tendons. The certification
program extends only to the process for extrusion and/or fabrication
procedures and materials within the examined plant, and is expressly
not intended to cover procedures or events subsequent to shipment of
tendons to the job site.
PTI Certified Plants and Certification Actions
Click here
for the current list of PTI Certified Plants. The latest
certification actions are listed in the pdf list of PTI Certified
Plants on the left side of the page.
Program Requirements
The procedures and requirements of the PTI Unbonded Tendon Plant
Certification Program are set forth in the following documents:
The Unbonded Tendon Plant Certification Committee (UTPC Committee) is
the management group that is responsible for decisions relating to the
granting, maintaining, extending, suspending, and withdrawing of
certification for facilities that fabricate unbonded single strand
post-tensioning tendons. Current members of the committee are
listed here.
