Post Tension Ducts

Post tension ducts is used as a duct former for a variety of precast and cast-in-situ concrete work. Specially formulated, proprietary composite, high-performance materials are used to manufacture this unique product. It is available from 50mm to 120mm, and also customizable according to the length and diameter needed. Corrugated Duct can be used for post tensioning ducts and precast connections.

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Engineers rely on ‌post tension ducts‌ (PT ducts) to enhance structural integrity in high-stress concrete applications. These corrugated sheathing systems protect prestressing tendons while enabling efficient grout injection, ensuring long-term durability.

Applications

  • Bridges & Highways: Resist dynamic loads and seismic forces.
  • High-Rise Buildings: Reduce slab thickness while maintaining strength.
  • Parking Structures: Mitigate cracking from heavy cyclic loads.

Engineering Solutions

  • Corrosion Protection: HDPE/steel hybrid designs prevent tendon degradation.
  • Grout Compatibility: Smooth inner lining ensures void-free grout flow.
  • Modular Joints: Pre-fabricated couplers reduce on-site labor by 30%.
Post Tension Ducts
Post Tension Ducts

The key benefits and features for Corrugated Ducts

☆   Wide range of diameter available (ID 50mm to ID 120mm).

☆  Quantity as per the site requirement can be manufactured.

☆  Easy benchmarking and thus production schedule.

☆  Customer friendly – Bendable and can be cut as per customer requirement.

☆  Ease of placement at site: Durable and tough.

☆  Corrosion protection with hot dip zinc coating.

Smart Functionality

  • Embedded Sensors: IoT-enabled ducts monitor tendon tension in real-time (optional).
  • RFID Tagging: Track installation progress via digital logs.

Technical Notes

  • Installation Tip: Use helical spacers to maintain duct alignment during concrete pour.
  • Grouting Alert: Low-viscosity grouts (≤12 sec flow time) recommended for narrow ducts.

Why Choose Us?

  • Certified Quality: Third-party tested to exceed ASTM/EN standards.
  • Customization: Tailor duct profiles for complex geometries.
  • Global Support: 24/7 technical advisory from licensed engineers.
Materials

HDPE(high density Polyethylene)

Shape

Flat and Round

Diameter

35-160 (mm)

TIGHT RADIUS

59mm (2-3/8") -160mm (6-1/4")

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