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FP connector
For manufacturing timber-concrete composite ceilings using wet and dry methods
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Advantages:
- Approx. four times the load-bearing capacity of conventional WCC options with screws, allowing a reduction of the installation time
- Predetermined insertion angle
- High overall rigidity of the ceiling structure
- Helps to create joist and solid timber ceilings with longer clear spans or higher load-bearing capacities
- No licensing, high value creation of in-house production
- Flexible use in several systems
Especially for the installation of dry, precast concrete elements with integrated FT connectors:
- Very quick installation
- Full load-bearing capacity of the composite structure directly after fastening (immediate composite action)
- No waiting time while concrete is curing; construction work can continue
- No separating layer that needs to be masked
- Minimises the entry of moisture into the building as well as the swelling or shrinkage of timber parts
When using prefabricated concrete part elements:
- Merging of prefabricated concrete part elements with the wooden ceiling, without gaps, using additional ASSY 4 WH washer head screws
- Torque value (20 Nm) of the ASSYplus VG 4 countersunk head screws, 10 mm diameter for the FT connector
- To prevent the wooden ceilings shrinking after assembly, the unfinished wooden ceiling must be protected against moisture penetration
- To prevent the upper cap cover from being loosened, vibration/shaking of the element in the pre-assembled state without concrete must be avoided
- Timber dimensioning software, load tables and detailed processing instructions can be found on the service page www.wuerth.de/assy.
ETA-13/0029
Expert report (from Karlsruher Institut für Technologie (KIT)) on improving concrete strength (up to 120 mm)
Suitable for on-the-spot installations of wood/concrete ceilings using wet concrete or for screwing pre-cast parts made by the factory (FP) with cast-in connectors to a corresponding wood ceiling system. Suitable for use in joist and solid timber ceilings. Approval for use in service class 1 and 2 (with sufficient concrete covering). Concrete strengths of 7 cm (standard) up to a maximum of 12 cm (wood lining) are possible.
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