Dauerhaftigkeit von Betonbauteilen und Fundamenten unter durchlässigem Fahrbelag

Durability of concrete members and foundations under permeable parking surface

Non-bearing parking floors in carparks may be realized directly on the ground, if the foundation of the structure is independent of this floor and no pressuring groundwater exists. This type of floor has been become more common, especially because the strict requirements due to exposure class XD3 with an "additional measure" according to table 3 in DIN 1045-1 or table 4.1 in the German National Annex of DIN EN 1992-1-1 are not necessary for the used surface. Typical non-bearing floor types are pavements of concrete or natural stone as well as unreinforced or only constructive reinforced floors. Independently, the durability of underlying foundations and members must be ensured. In the following text some comments are given to this topic.