Both the interior liner and exterior shell are coated on both sides with TRENCHCOAT® polymer coating by Dow Chemical Company. Smooth Cor is also available in pipe-arch shape. Smooth Cor is covered by AASHTO M36, Type IA, Pipe Arch is Type IIA.
The rugged, corrugated steel shell of Smooth Cor Pipe supplies the structural strength to outperform rigid pipe, while a smooth interior steel liner provides a Manning’s “n” of 0.012. This combination makes Smooth Cor Pipe both the economical and performance alternative to concrete in many difficult situations such as weak soils, poor subsurface drainage conditions, steep slopes and high fills.
Benefits of SmoothCor Pipe
- Smooth Interior - Provides a Manning’s “n” of 0.012 – superior hydraulics to conventional CMP
- Corrugated Steel Shell - Supplies structural strength to outperform rigid pipe
- Lightweight and High Beam Strength - Superior to concrete pipe in many difficult situations such as weak soils, poor subsurface drainage conditions, steep slopes and high fills
- Pipe-arch available - Distributes the flow area horizontally, providing hydraulic capacity without lowering the grade in limited headroom conditions
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