Post-Tensioning for Storage Tanks & Silos

Concrete reinforcement for safety, watertightness and durability

Post-tensioning is an active structural reinforcement method used in storage tanks and silos to improve safety, durability and watertightness of critical containment structures. In large containment tanks, such as those for Liquid Natural Gas (LNG), post-tensioned concrete ensures resistance to hydraulic pressure and limits cracking under load, providing essential protection even if the primary steel tank containment is compromised.

Why post-tensioning for storage tanks & silos  

Storage tanks and silos face demands from internal pressure, temperature fluctuations and environmental loads. Post-tensioning compresses the concrete containment structure to limit cracking and improve watertight performance. This reinforcement also increases resistance to abnormal loads and supports long-term operation with reduced material use and optimized structural behavior.

Post-tensioning compresses the concrete. This supports resistance to leakage and hydraulic pressure.

It improves the concrete’s ability to withstand high internal loads and environmental forces.

Compression limits cracks and slows degradation over time.

Post-tensioning helps tailor reinforcement to project needs and site constraints.

Optimized reinforcement can reduce concrete volume and support construction timelines.

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VSL’s Post-Tensioning Services

VSL provides a complete post-tensioning service for storage tank and silo containment applications, combining design support, supply of tendons and full installation execution.

Assessment of containment design requirements

Post-tensioning design coordination

Supply of strand tendons and anchorage components

Installation support and supervision

Optional monitoring services for performance verification

Why Choose VSL for Post-Tensioning

Construction of a biogas plant, with large concrete tanks.
  • Post-tensioning expertise

    VSL’s systems are mature, reliable and built to meet high safety and durability requirements.
  • Tailored solutions

    Each post-tensioning layout is adapted to the tank’s design, loads and performance needs.
  • Comprehensive delivery

    Design, materials and installation support are coordinated for performance and schedule.
  • Integration capability

    Post-tensioning can be combined with ground improvement, cut-off walls or other foundation systems for robust overall solutions.

FAQs about post-tensioning in tanks and silos

These are some of the most common questions we receive. Got another one? Reach out to us!

It is a method to apply compressive forces in concrete to limit cracks and improve structural performance.

To ensure watertightness and resistance to hydraulic pressure even if the primary containment fails.

Yes. VSL can recommend and provide monitoring services to track performance over time.

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Planning a storage tank or silo project with demanding structural requirements?

Contact VSL to explore tailored post-tensioning solutions for your project.