Inspection Service Software Log In:

Search Bridge Inventory Nationwide:

Worldwide Infrastructure Assessments

How To Properly Inspect Post Tension Tendon -A Critical Infrastructure Component

wire rope

Update Post Tension Tendon Inspections with MRI-like inspection of external “post-tensioned” tendons using TendonScan®®

WHAT IS A POST TENSION TENDON?

Post tensioned tendons are prestressing steel cables inside plastic ducts or sleeves that are positioned in the forms before the concrete is placed. … Prestressing simply means that the steel is stressed (pulled or tensioned) before the concrete has to support the service loads.

The engineers at Infrastructure Preservation Corporation were concerned with the visual and subjective inspections that were taking place on such a critical infrastructure component like post tension tendons. 

VISUAL AND SUBJECTIVE

post tension tendon inspection

TendonScan  Locates loss of metallic area inside a post tensioned tendon.

Post tension tendon inspection
wire rope

TendonScan is IPC’s comprehensive post tension & Robotic testing system utilizing the latest non destructive evaluation (NDE) and nondestructive testing (NDT) technologies to deliver an MRI-like inspection of “post-tensioned” tendons on large segmented bridges.  

 

Infrastructure Preservation Corporation (IPC) Utilizes Magnetic Flux Leakage (MFL) . The combination of MFL technology, software and robotics allows TendonScan® to peer through the external sheathing to locate loss of metallic area-corrosion inside the steel strands to critical to a stable infrastructure.

The battery operated, lightweight unit utilizes MFL “Magnetic Flux Leakage” to peer through the HDPE wrapping and inspect the steel that is critical to the assets integrity.  The inspector running the unit via a manual or robotic remote control.  The information received by the sensor head is transmitted back to the base station where an inspector monitors the results to mark any discontinuities along and within the tendon in real time. 

IPC’s TendonScan®

Scan services identifies deficiencies such as:

●      Corrosion

●      Section Loss

●      Surface Anomaly’s

●      Deterioration Progression over time

Magnetic flux leakage
Post tension tendon inspection service

TendonScan® can monitor deterioration progression over time  to help asset owners better plan for maintenance and repairs!

post tension tendon inspection

As the Tendon inspection unit makes its way down the entire length of the tendon areas showing loss of metallic area are both marked with a ribbon showing the location and loss of metallic area :”LMA”

 

If we are to preserve our infrastructure in a safe manner manual and subjective inspections ( a helmet flashlight, pad and pencil) need to be a thing of the past and modern technology that can provide quantitative results for asset owners should be quickly adopted if not mandated.

 

 

Infrastructure Inspections Expert Blog 

Bridge Inspection Field Pictures

Cable Stay Bridge Inspection https://www.infrastructurepc.com Cable Stay Bridge Inspection https://www.infrastructurepc.com DOT visits a Robotic Bridge Inspection Bridge Inspection with robotics Wireless Robotic Bridge Inspection Service

Read More »
wire rope inspection

Guy Wire Inspections

What is a “Guy Wire”? If you have ever passed a large broadcast antennas and have seen the wires anchoring them to the ground but

Read More »
Post tension tendon inspection

A Post Tension Primer

A Post Tension Primer Post-tensioning is a technique for reinforcing concrete structures. The prestressing steel cables inside the sleeves or plastic ducts are positioned in

Read More »
cable stay bridge inspection

How To Inspect A Bridge Using Robotics

Are we using the best technology possible to inspect our bridges and infrastructure?  Infrastructure Preservation Corporation performs advanced nondestructive testing on our infrastructure using wireless

Read More »

Leave a Reply

Your email address will not be published. Required fields are marked *

Email
Share on email
Email
Share on twitter
Twitter
Share on linkedin
LinkedIn

Search Our Site

Recent Posts

IPC Archives

Share on facebook
Facebook
Share on google
Google+
Share on twitter
Twitter
Share on linkedin
LinkedIn
Share on pinterest
Pinterest
Send this to a friend