Renovation project

In the summer of 2022 from June to October on runways 28-10, as well as on various stands and taxiways, ordinary renovation work was carried out on the concrete surface.

A total of more than 30 nights were worked, two different construction companies (ARGE and KIBAG) carried out the renovation work and more than 1500 cubic meters of Concretum® Q-FLASH 2/20 high-early strength concrete were produced and installed.

Construction process

The demolition of the damaged section of runway begins at 11 p.m. after the last aircraft has landed. As soon as the demolition is complete, the concrete is produced in the concrete batching plant at Ebirec in Rümlang and at Kibag in Bassersdorf. Subsequently the concrete is transported to the airfield (transport time around 20 minutes). The workability time of the concrete was set approximately to 90 minutes. This time is sufficient for the transport and placement. When the hardening reaction starts, the concrete reaches a strength of 20 MPa in about an hour. At 6 a.m. the runway is ready to be set back to operation. Thanks to the Concretum® Q-FLASH 2/20 high-early strength concrete Zurich Airport can carry out maintenance and rehabilitation work without affecting air traffic.

Jobreport

ZRH-Jobreport