ZISAN CONSTRUCTION

Duct Pipe/Sheathing Pipe

Insulating corrugated galvanized steel and plastic sheathing pipes engineered to protect prestressing steel tendons from corrosion, rust, and mechanical damage.

Duct Pipe/Sheathing Pipe
BUET

Quality Tested & Certified

Verified by Bangladesh University of Engineering and Technology (BUET) and AASHTO M297 standards.

SKU: ZC-DUCT-1003 Post-Tensioning & Anchorage Systems

Duct Pipe/Sheathing Pipe

Insulating corrugated galvanized steel and plastic sheathing pipes engineered to protect prestressing steel tendons from corrosion, rust, and mechanical damage.

WhatsApp PDF Datasheet

Key Engineering Features

Superior Tendon Corrosion & Moisture Shield
Helical Corrugated Profile for High Bond Strength
High Radial Rigidity Resists Crushing During Pouring
Retains Axial Flexibility for Curved Tendon Trajectories
Quality Tested & Certified by BUET

Technical Specifications Table

Parameter Engineering Benchmark
Material Options Hot-Dip Galvanized Steel / HDPE Plastic
Profile Geometry Helical Corrugated Profile with Lock Seam
Zinc Coating Z140 - Z275 g/m² Corrosion Protection
Duct Diameters Internal Ø 40mm to 130mm (Custom Sizes)
Standard & Testing EN 523 / ASTM A653 / BUET Quality Tested

Detailed Product Description & Engineering Overview

Duct Pipe / Sheathing Pipe is specially manufactured to cover and protect prestressing steel tendons in post-tensioned concrete building and bridge structures from corrosion, rust, and moisture damage.

Key Characteristics:
- Manufactured from premium cold-rolled hot-dip galvanized steel strips or high-density plastic.
- Helical corrugated profile provides high radial crushing stiffness while maintaining axial flexibility for curved tendon trajectories.
- Achieves superior mechanical bond strength with surrounding structural concrete and interior grout.
- Manufactured for precise functioning under diverse environmental conditions; lightweight and easy to assemble on site.
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