Retro-sealing expansion joints in record time!

The large-scale Austrian Rail infrastructure project, begun in June 2009, was completed in only 5 years – and the retro-sealing of a 27 m long expansion joint, the 11th pilot project of Wolf Kabeltechnik, Stuttgart, Germany, was also carried out there in record-breaking time.

• Wolf GmbH, Stuttgart, manufacturer of a patented reusable expansion-joint sealing system, was given the opportunity of demonstrating the advantages of their system in the context of a pilot project in Austria.

In the pilot project, the swelling-material coated sealing cushions with a valve, manufactured with new technology, were installed for the very first time. The new technology now makes it possible to produce the sealing cushions in lengths of up to 23 m instead of the previous 10 m limit. The sealing of the 27-metre long expansion joint was sealed in only 45 minutes..