Double wall
The double wall consists of two at least 5 to 7 mm thick wall shells made of reinforced concrete, which are combined with each other by means of braced girders. An empty space remains between the shells of at least 7 cm. The shells of the elements get the required main and cross reinforcement according to the statistical requirements. This reinforcement is already installed.
After assembly of the precast segments the double wall elements can be grouted with in-situ concrete.
As soon as the filling core is hardened, the total cross-cut has the effect of a monolithically manufactured in-situ concrete wall.
All additional components like cellar windows, fire retardand doors, door frames, electrical wiring conduits and splitting boxes etc. are installed at the factory.
General advantages of the system
- The double wall has the effect of a homogeneous in-situ concrete wall.
- All constructive formations, like, for example, projecting reinforcement, preformed gasket
- The ring armature is installed in the wall. This also concerns the slab edge assignment.
The system convinces in all aspects by a high profitability:
- The components are delivered "just-in-time"
- No investment costs for formwork
- Wage costs are considerably lower
- Formwork transport, as well as erecting and dismantling the formwork is superfluous
- The fast progress in construction makes it possible to keep the pre-financing costs much lower
- The double wall needs no plaster work
- Pre-casting takes place in work sheds and therefore weather conditions are irrelevant
- No deadlines for dismantling of formwork
- Less construction site equipment, a storage of material is possible in lockable cellar rooms.
- Smooth formwork surface, immediately ready to be painted and papered from inside and outside, no plaster required
(source: Syspro)
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