Bridge in Neunkirchen: Refurbishment with microbes started!

Neunkirchen renovates the Pfennigbach Bridge with micropfers. Work begins on May 16, 2025, total costs: 100,000 euros.
Neunkirchen renovates the Pfennigbach Bridge with micropfers. Work begins on May 16, 2025, total costs: 100,000 euros. (Symbolbild/ANAGAT)

Bridge in Neunkirchen: Refurbishment with microbes started!

At the Pfennigbach Bridge in Neunkirchen, massive settlement damage endangered security. At a length of about 30 meters, considerable problems recently found that are due to a leaky concrete box gutter. These damage must now be remedied immediately because the stability of the building is at stake. The renovation, which began on May 16 and is to be completed by the end of June, is being implemented with an innovative concept that relies on micropoles, such as MeinDärd reported.

The Felbermayr company from Salzburg takes over the delivery of the micropoles, while the Neunkirchen bridge master's shop is responsible for the excavation and concrete work. Overall, the costs for the renovation amount to around 100,000 euros. An important point of the work is the stabilization of the foundation, which is crucial to prevent future settlement damage.

The causes of settlement damage

setting damage is a widespread problem. They can be caused by various factors, including moisture and climate-related changes in the building ground. Buildings in areas with toned soils are particularly at risk, since their volume can react strongly to fluctuations in moisture. Disruptions in the subsoil, be it through earthquakes, construction site vibrations or floods, often lead to dramatic problems that have even had fatal consequences in the past, such as the tragedy in Nachterstedt, in which three people died as great earth movements, so much, such as Uretek.

An important criterion for the evaluation of settings is the ratio of settlement difference from the distance, which can even go hand in hand with optical damage for values ​​over 1/300 and over 1/150. At the Pfennigbach Bridge, a professional observation of the cracks is necessary to precisely determine the causes and to develop sustainable solutions.

renovation methods in detail

The choice of micropoles for stabilization is not accidental. This method, which is also used for other renovation projects, has proven itself. In the case of settlement damage, it is often necessary to clearly compact and increase the surface. The uretek process offers an environmentally friendly solution in which injections can serve to compact the building ground with a special expansion resin. This technology enables the support of the foundation to be increased, so that it better meets the static requirements, as is indicated on This-Magazin.

The renovation work on the Pfennigbach Bridge are part of a greater endeavor to sustainably improve the infrastructure in the Neunkirchen district. With a targeted and well thought -out approach, not only the stability of the bridge is secured, but also a contribution to traffic safety is made. After all, it is about the fact that the citizens can rely on the infrastructure at any time and do not experience unpleasant surprises!

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OrtNeunkirchen, Österreich
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