Securing of masonry, Leaning Tower in Frankenhausen
The leaning tower in Bad Frankenhausen is more inclined than the Leaning Tower of Pisa and was stabilized with a support structure, although the wall surfaces remain inclined.
The leaning tower in Frankenhausen was stabilized in 2015 using a special support corset. The plaster mortar masonry, which continues to lean, required additional measures to prevent moisture damage from rainwater penetration and structural problems caused by washouts.
The following measures were therefore carried out to secure the masonry:
- Clearing out the joints to remove damaged and unstable areas.
- Re-grouting of mortar joints using a special drainage mortar consisting of WEBAC 4270 epoxy resin and quartz sand with a grain size greater than 1.2 mm. The drainage mortar was applied through targeted drilling to improve stability and efficiently drain water. This prevented joint breakouts and frost damage in the long term.
- Cladding of exterior wall surfaces with gypsum plaster
After restoration, the masonry is permanently secured, protected from weathering, and structurally stabilized.
