Re-Fer

Description
A new opening had to be cut in a heavily utilized retaining slab of the storage silo, ARA Bern. The existing reinforcement also had to be cut through.

Prestressed re-bar ribbed steel, which was applied in sprayed mortar and pre-stressed via resistive heating with electric current was the optimal replacement.

Advantages:

• High ductility of the additional reinforcement
• Active bending reinforcement (after activation at a similar stress level as existing reinforcement)
• Protected by a layer of sprayed mortar
• Easy-to-apply posttensioning reinforcement without complex equipment (jacks) and anchor heads
• Recyclable material during dismantling, re-bar can be 100% reintroduced into the stainless steel production cycle
• High situational adaptability of the reinforcement system

re-fer Product
memory^®-steel re-bar 16 in Sika MonoTop^®-4012