Several old halls of the Fieseler-Werke (former aircraft factory of the armaments industry) in Kassel-Lohfelden were to be completely refurbished for a new use by a company in the electronics industry. The refurbishment was planned by the architectural firm Plan 3 from Warburg, which put out a tender for a solution using a leveling compound from VELOSIT. The local company Otto Scheuerer Bautenschutz GmbH was ultimately awarded the contract to carry out the work.
As the floors were in a desolate state, some of them had to be milled out to a depth of up to 30 mm. During the milling work, a few “surprises” came to light. The floor slab, which was actually approx. 15 – 20 cm thick, was barely 5 cm thick in some areas.
This meant that the non-load-bearing areas had to be cut into and the excessively thin base completely removed. Once these areas had been sufficiently deepened, the area was filled with VELOSIT SC 244 flowing screed. A total of 14 tons were used to create a load-bearing substrate again. A concrete structure would have delayed the installation of the floor by weeks, whereas VELOSIT SC 244 is ready for covering on the following day.
The surface was then sandblasted and primed with an epoxy resin primer. For logistical reasons, the self-levelling mineral industrial floor based on VELOSIT SC 253 was installed in 2 sections.
A GB Machines Mobilman D3 from Waldemar Derksen Estrichbau & Baustoffhandel was used to install a total of more than 50 tons of levelling compound. The entire surface was then treated with VELOSIT FH 921 silicate/siliconate surface finish, which ensured an even denser and easier-to-clean structure.
The historic buildings, in which airplanes were built in the 1930s, were thus able to retain the charm of the original concrete floor and at the same time meet the requirements of a modern hangar floor.
