In Part 2 of our culvert rehabilitation podcast series, we are breaking down one of the most innovative FRP technologies in our industry: StifPipe®, QuakeWrap’s patented CFRP honeycomb liner for deteriorated corrugated metal pipe (CMP) culverts.
Originally developed from decades of aerospace R&D, StifPipe’s honeycomb core acts like the web of an I-beam, while the inner and outer FRP skins act like the flanges, delivering exceptional stiffness and strength without stacking 10+ layers of carbon fabric. The result is a lightweight, corrosion-proof, stand-alone structural liner that restores the culvert’s load-carrying capacity under soil and traffic loads.
In this episode, Mo will walk through:
How StifPipe is designed and manufactured using aerospace-inspired honeycomb technology
Why this liner resists internal pressure, external soil loads, corrosion, and traffic loads
How StifPipe can be built to virtually any size or shape, including non-circular culverts
Field installation advantages: lightweight sections, easy assembly, and minimal equipment
Real-world case studies like the Arc Terminal project in Alabama and a custom rough-surface liner developed for Hong Kong
If you're dealing with aging CMPs or complex culvert geometries, this episode shows why StifPipe is becoming a go-to solution for DOTs and public works teams worldwide.