The Green Code Eco Slab® is an industrially prefabricated, reinforced slab element. It consists of a metal formwork-smooth concrete panel with integrated truss connectors, load-bearing longitudinal reinforcement, minimum transverse reinforcement, and potentially integrated punching shear reinforcement, as well as void formers made from 100% recycled polypropylene – the so-called GC box. The box comprises a factory-installed base (GC base) and a site-completed cover (GC top).
Green Code Eco Slab®
A Prefabricated Slab Element
The prefabricated concrete elements enable quick installation and eliminate expensive formwork systems, significantly reducing construction time. Following assembly and the installation of additional reinforcement, as well as the curing of in-situ concrete, a structurally two-way spanning, monolithic ceiling system is created.
The key advantages are the cost efficiency of the system: through the void formers, up to 25% of in-situ concrete is saved, reducing the dead load of the slab as well by up to 25%. The elements are individually planned and manufactured according to project requirements and are particularly suitable for slabs with high structural demands. Planning and production are conducted under strict quality criteria.
The Green Code Eco Slab® is delivered to the construction site ready-assembled with the integrated GC base. Following the assembly of the slab elements, technical components for lighting, acoustics, climate, and/or ventilation can be easily added. The upper part of the box is then securely and simply closed with the GC top. This is accomplished by snapping the two parts together via a patented connection that reliably prevents the element from floating up during concreting. As with a conventional precast slab, reinforcement layers are then installed.
Up to 25% less concrete
Green Code Eco Slabs® save concrete as the integrated GC boxes displace in-situ concrete where it is not structurally necessary. This reduces material consumption, is sustainable, and accelerates construction progress.
Up to 25% less weight
Polypropylene and air are lighter than concrete and steel. With equal load-bearing capacity, slab weight is reduced by one-fifth. Each GC box can support up to 200 kg (2 kN point load).
Up to 15% less steel
Less Concrete Means Less Steel.
Thanks to Green Code Eco Slabs®, the slabs dead load can be reduced, which requires less reinforcement. This saves raw materials and time.
Significantly simplified structural design
The reduced need of concrete and reinforcement lowers the slab dead load by up to 25% without compromising stability.
This reduction means that for every five storeys, the dead load savings equals an entire additional storey. With the same foundation, an additional floor can be built!
20% less CO₂ emissions
Sustainability throughout the entire life cycle.
The GC box consists entirely of polypropylene and can be fully recycled at the end of its life cycle – a perfect example of the circular economy. This makes the Green Code Eco Slab® not only future-proof, but also the most sustainable solution for today's and tomorrow's challenges.
The advantages of Green Code Eco Slab® extend far beyond material savings. Automated planning and production processes, supported by state-of-the-art BIM technologies and robot-assisted manufacturing, ensure maximum efficiency – both at the factory and on the construction site.
- Up to 60% fewer workers required on site
- Up to 40% shorter construction times
- Efficient stackability of elements for maximum truck load capacity
- Simple and seamless assembly
Particularly suitable for:
- Administrative and office buildings
- Hotel buildings
- Agricultural buildings
- Basement rooms and underground garages
- Multi-story residential buildings
- Large span widths
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Further Concrete Elements at a Glance
Double wall precast element with door and window openings and narrow insulation joint
Thermal wall with integrated insulation and visible reinforcement in section model
Climate ceiling with integrated heating and cooling pipes in red and blue
Acoustic ceiling with green void formers and reinforcement grid on precast concrete half-slabs
Acoustic climate ceiling with void formers, mineral wool insulation and integrated building services
Thermal slab with yellow insulation layer between lattice girders and cast-in-place topping
Solid slab with dense steel lattice girders and reinforcement mats in section