In the Sular Valley Viaduct project in Istanbul, BBR Network member Kappa is pioneering sustainable bridge construction. 

Using post-tensioning (PT) and movable scaffolding systems (MSS) that incorporate BBR’s CONA CMI and CMF PT tendons, the project has enabled:

☑️  21,300 tons CO₂ savings
☑️  46% less concrete
☑️  51% less steel reinforcement
☑️  31% reduction in strands use

compared to the initial design the customer had envisioned.

BBR CONA CMI offers unique features for design and operation, such as reduced bursting reinforcement requirements and the possibility of stressing at lower concrete strengths, essential for such a 90m span. All fully assessed and covered by ETA.

By integrating PT and MSS technologies, Kappa Kalıp is delivering efficient, sustainable solutions while maintaining high structural integrity and minimizing costs.

This innovative approach shows how structural efficiency and environmental responsibility can go hand in hand — setting a new standard for sustainable infrastructure.

For the full story, download your copy of CONNÆCT edition 19 in PDF format and go to page 26: CONNÆCT 2025 edition