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The prédalles constitute the formwork and ensure part of the mechanical resistance of the finished floor which is consisted a prédalle associated with a flagstone of compression run on building site.
The thickness of the final floor is function of the taken again loads and the range.
Scope of application:
The prédalles are implemented in all the types of works. They find a use privileged in the residential buildings, but also in the writing desks, the buildings industrial and the carparks.
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The classic Précoffré slab from FEHR Technologies.
The classic FEHR Technologies Précoffré slab is ideal for construction with Précoffré® walls. It enjoys the same quality commitment guaranteed by rigorous controls carried out in the laboratory and in the fabrication plant. It constitutes the formwork and ensures the resistance of the floor.
It can be used for all types of structure and be adapted to every architectural solution. The upper surface is rough to provide a single floor surface once the compression slab has been cast. The lower surface (factory finish) is ready to paint or be left bare.
reinforced concrete C 40/50
normal width: from 2.5 m
thickness: from 5 cm to 8 cm
length: up to 8.5 m
Normal width: from 2.5 m
Précoffré freestanding slab without props up to 5 m in length
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The RECTOR pre-slabs are formwork elements in reinforced or prestressed concrete integrating the majority of load bearing steels required for the floor resistance.
The smooth underside of the RECTOR pre-slabs guarantees the quality of the facing of the ceiling with an appropriate treatment of the joints.
Supplementary elements making the work on site easier can be incorporated in the pre-slabs: insulants, formworks, reentrants, electrical hubs, safety devices.
Depending on the armature positions, it is possible to satisfy specific requirements (fire-stop level, aseismic,%u2026).
The integration of special armatures also allows for specific uses, in the case of the suspended slab for example.
The weight of the pre-slabs as well as their storage onboard trucks can be adapted to the hoisting capacities and planning of the site.
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The Spürgin precast floor connects the classical advantages of the Fertigteilbauweise with the developments and requirements of a flexible and economic planning up-to-date.
By the employment of innovative armouring technology widespread roof slabs and large assembly spans can be realized.
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The THERMOPRÉDALLE is a patented, manufactured device in factory, intended to receive on building site of the elements insulations. Those height equal to the thickness of the flagstone of compression and placed in continuity of the interior insulation, ensure an effective rupture of the thermal bridges.
It is about a reinforced concrete prédalle equipped with limp out of rigid polymer built-in as of manufacture in factory along banks of the flagstone. Blocks insulations out of compressed rockwool provided by RECTOR are set up in these limp by the company before the casting of the flagstone of compression.
Anchorings of the flagstone in the peripheral walls are ensured by reinforcing cages integrated into the THERMOPRÉDALLE. They function in the case of loads and ranges most current, including in seismic zone.
The height of limps authorizes the stacking of the prédalles during transport.
A mating plane of the prédalles allows on building site, the orientation and the provision of the prédalles.
The THERMMOPREDALLE allows a reduction of the thermal bridges of the order this 40%, with a ratio optimal cost/performance.
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Precast concrete structures: pre-slabs
