Flexibility and long spans
Cofraplus® 80 is flexible enough to be adapted to specific project requirements and detailed design drivers. It can be used alongside all structural materials – including steel or timber beams and concrete - and with any kind of modern build method.
ArcelorMittal Construction has developed a new range of dedicated system accessories that provides a complete solution for installing the slab and pouring the concrete.
Suspended elements such as tubes, ducts, and suspended ceiling fixtures can be anchored using a specific accessory so there is no need for drilling of the concrete during installation or refurbishment. This saves time and cost on floor adaptations and reduces noise levels for those living or working nearby.
In standard mode, the system is compatible with through-deck welding connectors, or it can be supplied in a pre-punched version to suit shear connectors welded to the beam.
The Cofraplus® 80 system can span up to 4.5 m without props and more than 6.5 m with props. The geometry of the prefabricated steel means that it can serve both as shuttering during the pouring phase and reinforcement during the service phase. Its specific geometry means that composite action with the concrete is optimal.
ArcelorMittal Construction introduces Cofraplus® 80: a brand-new lightweight alternative to prefabricated concrete floor slabs
Using an 80 mm high trapezoidal steel profile alongside a lower volume of poured concrete, Cofraplus® 80 outperforms a traditional precast slab in a greener and more environmentally conscious package.
A new flooring solution for construction companies that want to build differently
With an estimated 25% reduction in overall slab weight, the Cofraplus® 80 flooring system has a positive impact on surrounding load bearing beams, columns, and even foundations, leading to more cost effective, lower mass, and ultimately more sustainable construction. Cofraplus® 80 reduces CO2 emissions by 15% compared to a traditional precast slab.
The cost savings and environmental benefits extend into efficient transportation, storage, and installation. For a 1400 m² floor, Cofraplus® 80 requires only one truck delivery to site and 12 crane movements to unload (as the lightweight profiles can be efficiently stacked) compared with 8 deliveries and 96 crane movements for a prefabricated slab.
Similarly, during installation, a single Cofraplus® 80 profile weighs only 52 kg whereas the equivalent precast slab weighs 1875 kg. A single team can manually install up to 600 m2 safely in just one day while a crane is needed to install the same surface of precast slab.
Thus, logistics is one of the key areas where Cofraplus® 80 really scores over the prefabricated concrete alternative.
Text:
ArcelorMittal Construction
Constructalia
Images:
ArcelorMittal Construction