News & Thought Leadership


Geopolymers Part 3 | Cincinnati Steep Grades and Sewer Degradation

August 11, 2016
It’s hard to see in these pictures, but one of the biggest challenges of this repair job was its position on a steep (25 percent) grade. In fact, the slope was so severe in some places that the repair team needed...

Fabric Weave: The effect of balanced vs. unbalanced weaves

August 09, 2016
We often receive questions about the ideal pipe repair systems given varying external conditions. Our recommendations are predicated upon the fabric weave that is most appropriate, in addition to other factors. Consider...

Mechanical Damage

August 08, 2016
Localized cracking may become present through mechanical damage (MD) including, but not limited to, gradual or rapid soil movement, severe dents, wrinkle bends and bending. Localized cracking due to MD may be external or...

Fabric Composition: Should you use carbon fiber or fiberglass repair systems?

August 04, 2016
Every composite repair has the capability to work when designed correctly and installed properly. Some systems are designed with particular objectives in mind, whether external corrosion, mechanical damage, leak repairs...

Geopolymers Part 2 | Analyzing the Problem: Pipe Access and Application Issues

July 28, 2016
One of the only places the repair team could locate the pipe was through a manhole that allowed only limited access for the crew. To make matters more complicated, the material at the pipe went from round to arched and...

Major Road Problem, Solved!

July 21, 2016
Early in the month of June, a crack appeared in the support column of the 385 exit ramp in Greenville SC. The SCDOT said that the crack could be dangerous for drivers exiting the interstate, and that a quick, reliable...

It Pays To Be A Slacker

July 20, 2016
Sometimes while writing these post I feel like I need to give everyone a great “Eureka” moment but in reality a lot of these snippets are relatively easy things that can help you in the long run....

Geopolymers Part 1 | Bringing 19th Century Infrastructure to the 21st Century

July 14, 2016
In the late 1800s, a sanitary sewer system was hand-built near a major university in Cincinnati, Ohio. Built with a hodge-podge of circular brick and stacked, arched stone and granite that varied in diameter throughout,...

Shhh.... swivel secrets

July 13, 2016
Previously, we’ve discussed the importance of a swivel in an installation. This simple, little device has prevented many, many headaches on the installer's part. In the past I have provided some test data on...

Stress Corrosion Cracking

July 12, 2016
Hydrogen embrittlement results in Hydrogen-Assisted Stress Corrosion Cracking (HSCC), more commonly known as Stress Corrosion Cracking (SCC), which results from corrosion issues and high tensile stress, is typically...