Post-tensioning: systems and applications of post-tensioned concrete
EKKAF imports, constructs and installs post-tensioning systems for bridges, buildings, tunnels and deep excavations — with the expertise that established the method in Greece.
What a post-tensioning system includes
A complete post-tensioning system consists of tendons (high-strength seven-wire strands), ducts (metal or plastic), end anchorages and couplers, plus the stressing and grouting equipment. EKKAF covers the entire chain: supply of certified materials, installation, stressing with calibrated jacks, preparation of stressing protocols, and grouting of the ducts for corrosion protection.
Applications
- Bridges: precast prestressed beams, segmental construction, deck slabs, continuous decks.
- Buildings: long-span post-tensioned slabs, transfer beams, special structural systems.
- Tanks and silos: circumferential prestressing for watertightness and hoop tension capacity.
- Infrastructure: tunnels, metro projects, sewerage works, wind turbine foundations.
Why post-tensioning with EKKAF
Since 1987, EKKAF has participated in more than 1,000 post-tensioning projects across Greece and the Balkans, working with all major construction companies. The company brought post-tensioning technology to Greece through the Freyssinet representation and has contributed at research level with measurements and protocols in bridge studies and doctoral research at NTUA. All materials carry European Technical Assessments (ETA) and CE marking.
Designing a post-tensioned slab or bridge? Send your drawings to info@ekkaf.gr for a technical proposal and budget.
Related solutions
See also our prestressed ground anchors for geotechnical applications and structural reinforcement with composites for existing structures.