ELESDOPA double-wall or multiple-wall elements can be used for walls, floors, ceilings, roofs, arches, bridges, dams etc. The building procedure is as follows:

  1. A support is shaped into the desired form. Usually this support is made of expanded polystyrene or a similar thermal insulating material.
  2. The support has perforations into which connectors are inserted.
  3. Steel reinforcements are attached on both sides of the support.
  4. Concrete or mortar is shot against both sides of the support (shotcrete)covering the steel reinforcements.
  5. The connectors which stick out of the concrete are bent towards the wall to further close the structure.
  6. Finally, successive layers of concrete are shot to consolidate the wall once the previous layers are settled and hardened. There is no need to provide covering material.