Renovation of the underground car parks of the FOC building at Munich airport almost completed

On behalf of Flughafen München GmbH, Rädlinger Ingenieurbau GmbH has been renovating the underground car parks of the Lufthansa Flight Operations Center since January 2013. Completion is planned for November 2014.

No less than 12,000 m² of old seal, concrete screed and concrete floor slabs had to go. Rädlinger employees used extreme-pressure water jets to strip the concrete off a 400 m length of reinforced concrete walls and around 200 reinforced concrete columns. Provisional supports stabilised the ceiling and the reinforced concrete columns until the new concrete was poured in place. Before the new concrete floor slabs could be laid, cracks in the reinforced concrete floor slab with a total length of about 400 metres had to be repaired. About 800 metres of joint profiles were also replaced. The asphalt has been cast on the bitumen seal, and by November 6,000 m² each of the coating systems OS 8 and OS 11b will be installed in order to protect the underground car park structures in future from penetration by water, which often contains de-icing salt.

The building is in the secure area of the airport, which can only be accessed by specially authorised persons. Participation in aviation safety training is a prerequisite for this authorisation to be issued, and Rädlinger employees attended four theory lessons at the Munich airport training centre to fulfil this requirement.

The renovation work took place in several sections so as to disrupt use of the underground car park as little as possible. The use of extreme-pressure water jets kept the noise level throughout the work to a reasonable level both for employees and the nursery school located in the building.


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