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Germany's Fibrolux supplies 16 km of custom fiberglass pultrusion

01 Feb '22
3 min read
Pic: Fibrolux
Pic: Fibrolux

Fibrolux, a German leader of pultruded composites and a pultruder in Europe, has completed its largest civil engineering project. Fibrolux has supplied more than 16 km of a large-scale custom fibreglass pultrusion that enabled the refurbishment of the 1 km Marshal Jozef Pilsudski Bridge in Torun, Poland with double width pedestrian and cycling walkways.

As part of an extensive bridge upgrade programme to provide additional capacity and improve safety by moving cyclists away from the road carriageways, Fibrolux produced an innovative pultruded composite slab solution for the new walkways. Originally constructed in Münsterwalde, Germany in 1909 as a road and railway crossing, the main bridge structure was disassembled and moved to Torun in north-central Poland in 1934. The Marshal Jozef Pilsudski Bridge now links the southern part of town with Torun’s UNESCO World Heritage Site old town, the company said in a press release.

The bridge concept, an interlocking walkway deck panel formed from eight massive triple cavity pultruded profiles 500mm x 150mm in section, was an enabling technology, allowing the walkways on each side of the bridge to be expanded from 2m to 4.5m in width, creating safe space for cyclists. With the existing bridge structure unable to support the weight of wider steel walkways, the lightweight glass fibre composite structure delivered the required capacity upgrade as well as providing a low maintenance, cost effective solution for the project engineers. 

Fibrolux created a custom die for the new super-sized bridge profile before launching production of the 16 km of profiles using a combination of assembled rovings and mats. The pultruded sections were delivered to site cut to length, assembled using custom stainless-steel fasteners, and then coated with an anti-slip coating, creating panels approximately 4m x 10m that could be lifted into position using a small crane due to the low weight of the pultruded sections. The assembly was carried out by the Polish company NTI Sp. z o.o. Nowoczesne Techniki Instalacyjne. Fibrolux will also supply a range of standard fibreglass pultruded sections that will directly fasten to the composite walkway slabs and will be used to support the rainwater drainage system for the refurbished bridge, according to Fibrolux.

“The Marshal Jozef Pilsudski Bridge project is a fantastic showcase for pultruded composites in civil engineering. Longer than 9 football pitches, the new walkways highlight not only the weight saving and durability benefits of composites, but also the cost and time on site advantages of a large scale Fibrolux custom profile design. Installation of the first phase of the walkway on one side of the bridge was completes in spring 2021. The second phase, which doubled the bridge’s previous capacity for pedestrians and cyclists, was completed in December 2021,” Sebastien Mehrtens, business development director, Fibrolux said.

Fibre2Fashion News Desk (GK)

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