Re-Fer

Description
The concrete ceiling of an office and industrial building showed deficits in the punching shear resistance of some of the columns. re-bar 16 were used to supplement the internal reinforcement and existing punching shear dowels.

The column areas were roughened hydromechanically and the bars were inserted above the existing bars. After grouting and curing the end areas, re-bar was heated and prestressed. The reinforced areas were slightly casted higher in the profile and the waterproofing was restored.

Advantages:

• High ductility of the additional reinforcement
• Active tensile reinforcement (after activation at a similar stress level like the existing reinforcement)
• Easy to apply reinforcement with prestressing; without complex stressing equipment (jacks) and anchor heads
• Recyclable material, re-bar can be 100% reintroduced into the steel production cycle
• High situational adaptability of the reinforcement system

re-fer Product
memory^®-steel re-bar 16 in SikaGrout^®-314 N