Seismic behavior

ICF REXwall system allows to create anti-seismic load-bearing walls of reinforced concrete. The walls comply with the new regulations introduced by the “NTC 2008 standards” that entered into force on 30 June 2009.
The ICF REXwall system allows to build concrete load-bearing walls that are able to resist to earthquakes. This type of structure makes possible to obtain a “box-like effect” that makes the walls resist to the force of an earthquake shaking the ground in different directions. An appropriate sizing of the rebars to be placed inside the formworks, makes possible the creation of all types of building, even in areas with a high seismic risk. The presence of the spacers is essential to maintain the formworks always at the same distance. The spacers are appositely shaped for the accommodation of the horizontal reinforcing bars, keeping them in position during the concrete casting process.

 

 

The Expanded Sintered Polystyrene, material of which the ICF REXwall panels are made, is self-extinguishing because integrated with agents opposing the spreading of flames. This means that as soon as the flame source ceases or is moved away, the fire propagation stops.
It must be considered that the EPS elements (in buildings) are always protected by a plaster layer or other coatings, so the level of resistance to fire of the wall depends first on the properties of these superficial elements. All the ICF REXwall EPS components are certified to be self-extinguishing  “Euroclass E” according to EN 11925/2 regulation.