ontelolaattajärjestelmät

Ontelolaattajärjestelmät, known in English as hollow-core slab systems, are a type of prefabricated concrete floor and roof construction. They are characterized by their hollow voids that run lengthwise through the slab. These voids are created during the manufacturing process, typically using extrusion or casting methods.

The primary advantage of ontelolaattajärjestelmät is their inherent lightness. The hollow cores significantly reduce the overall weight of the concrete slab compared to solid slabs of the same dimensions. This weight reduction leads to several benefits, including reduced load on supporting structures, foundations, and columns, which can result in material savings in these areas. Furthermore, the lighter weight can simplify transportation and installation.

These systems are commonly used in a variety of building types, including residential, commercial, and industrial structures. They are particularly suitable for projects where speed of construction is a priority, as the precast elements can be manufactured off-site and quickly assembled on-site. The hollow cores can also be utilized for the passage of services such as electrical conduits, plumbing, and ventilation systems, further streamlining the construction process. The structural integrity of ontelolaattajärjestelmät is well-established, and they offer good fire resistance and sound insulation properties, comparable to traditional concrete slabs.