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Restoration of pedestrian underpass - Bodenstrasse - Küssnacht, Switzerland

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Restoration of pedestrian underpass - Bodenstrasse - Küssnacht, Switzerland

The reinforcement work using S&P CFK-Laminates was carried out in four stages over the course of 3 months.

Topic 
Restoration of pedestrian underpass
Object 
Bodenstrasse
City 
Küssnacht
State 
Schwyz
Country 
Switzerland
Date 
2014

Solution

In the process of restoring the underpass on Bodenstrasse street in Küssnacht, the secondary reinforcement had to be adapted to fulfil current norms. According to static calculations, this requires S&P CFK-Laminates 150/2000 with 50x1.2 mm dimensions at intervals of 50 cm. The concrete surface was prepared by hydro-demolition, after which the laminates could be applied onto it using S&P Resin 220 to form a force-transferring bond. So that at least one lane of traffic could be upheld on the road, the reinforcement was carried out in several stages. The application of laminates was carried out in an unloaded state, without traffic loads.

Material

435 m’ S&P CFK-Laminates, type 150/2000, 50 x 1.2 mm,
Fld = 60 kN

Image Gallery

  • Laminates applied onto the prepared bearing subastrate

  • Joint areas between laminates

  • Surface protection mortar between the laminates

  • Completed reinforced deck slab, seen from below

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