The VSL External Tendon System represents a new generation of external post-tensioning designed for higher performance, enhanced safety, and simplified maintenance.
Unlike conventional systems, each strand is individually protected at the factory—eliminating the need for grouting while ensuring long-term corrosion protection from day one.
No Grouting Required
Corrosion protection is built in. This saves time, reduces site complexity, and shortens construction schedules.
Full Inspection & Replaceability
Each strand remains accessible and can be inspected or replaced at any time during the bridge’s service life—ideal for long-term asset management.
Enhanced Structural Safety
Parallel, individually protected strands provide redundancy. The loss of a single strand does not compromise the entire tendon.
Proven International Performance
Validated through full-scale testing and extensive global project experience.
Smart Monitoring Ready
Compatible with Smart PT monitoring systems for real-time condition tracking and performance-based maintenance planning.
VSL external tendons are suitable for:
Whether for new construction or structural upgrades, the system delivers flexibility, accessibility, and long-term reliability.
Strands are installed after concreting using efficient pulling or pushing methods.
This makes the system ideal for bridges with restricted access, tight curvature, or retrofit constraints.
Safe de-tensioning and strand replacement are possible using patented VSL technologies—supporting lifecycle maintenance without major disruption.