Geoplast Products

New Nautilus Formwork for the construction of lightweight concrete bidirectional slabs

New Nautilus modular element

New Nautilus is a modular formwork made of recycled polypropylene (PP) designed for the construction of lightweight reinforced concrete slabs poured on-site.

Projects

LIGHTENING SYSTEM FOR BIDIRECTIONAL SLABS

New Nautilus Permanent void former for lightweight bidirectional slabs

NEW NAUTILUS is a modular formwork made of recycled polypropylene (PP) designed for the lightening of the reinforced concrete slabs poured on-site.

 

The concept is the creation of a bidirectional slab that can be used for the realization of huge size floors with a reduced thickness;  the plastic lightening permits the obtainment of a structure composed of a lattice of eight-sided beams enclosed between an upper flat sheet and a lower one without any cast of new concrete.

 

In this way the creation of flat intrados, large spans, bidirectional and capable of bearing huge loads slabs, is possible.

 

This can happen thanks to the weight reduction and the reduction of concrete consumption valuable up to the 25%.

 

Beams and pulvines can be placed within the slab section (thickness elements) in order to realize wide slabs with high architectural flexibility and without structure obligations.

NEW NAUTILUS system, is created with recycled materials, it's easy and fast to place in the construction site and sustains all the structure.

NEW NAUTILUS MAIN ADVANTAGES

Faq

How much concrete can be saved in respect to a ceiling slab solution?

In the calculation of a slab made with NEW NAUTILUS, deformation is the parameter that defines slab thickness and sizing. This value is based on the inertia of the concrete+steel section. By replacing part of the concrete with NEW NAUTILUS formwork voids, the inertia decreases, so an increase of the slab height is recommended (a few cm) to maintain a suitable deformation. However, generally, the reduction of concrete weight and consumption varies between 15 and 20%.

How much steel can be saved with respect to a ceiling slab solution?

In the calculation of a slab made with NEW NAUTILUS, deformation is the parameter that defines slab thickness and sizing. This value is based on the inertia of the concrete+steel section. By replacing part of the concrete with NEW NAUTILUS formwork voids, the inertia decreases, which lowers the slab self-weight as well. Therefore, the difference in the amount of steel between the traditional solution and the lightened one is small, but will in any case result in a reduction (from 2% to 5%).

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