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XCarb® recycled and renewably produced steel supports cyclists and pedestrians in Luxembourg

A cycle and pedestrian path between Esch-sur-Alzette and Belval (Luxembourg) has been inaugurated, as part of the overall development of the national cycling network, which includes linking Esch-sur-Alzette to Luxembourg City.

The most amazing part of the course – a first of its kind in Europe – is the 1.2 km bridge, snaking more than 7.5 metres high and passing close to the ArcelorMittal Belval mill, the central train station and many mature trees, which were preserved thanks to the project design.

XCarb® recycled and renewably produced steel as a pillar in the project’s low embodied carbon

The carbon footprint of the project was a key element for the public authorities, from the choice of the route to the materials used to make it. Thanks to XCarb® recycled and renewably produced steel, the structural steel used in the bridge has very low embodied carbon – approximately 300kg of CO2 per tonne: only steel scrap and renewable electricity have been used in ArcelorMittal Belval and Differdange, to produce the structural steel elements.

Three lots of ArcelorMittal expertise, from beams to double-curved T spliced sections

The steel elements that are part of the project needed to adapt to the course of the bridge.

Basic elements in small sizes (IPE200 and IPE600) were used for the deck elements of the bridge. On top of these, 340 tonnes of HL1100 beams were used as longitudinal elements for the straight segments of the bridge, after being cut into T-sections at the Steligence® fabrication centre.

In addition, 200 tonnes of curved T-sections were tailormade for the turning segments of the bridge – a technically challenging requirement. Using the hydraulic press in the Steligence® fabrication centre, the beams were given two bends, including a counter deflection. While all the T-sections were bent on the weak axis, either in S-shape or in standard circular/parabolic shapes, some of these T-sections were also cambered on the strong axis.

Arcorox® and XCarb® recycled and renewably produced: a sustainable match for a bridge that lasts

“The curved T-sections are probably the most visible part of ArcelorMittal’s work in this project. However, our expertise is not only there! Thanks to XCarb® recycled and renewably produced steel in Arcorox® weathering quality, the new cycle and pedestrian bridge is sustainable and designed to last, with ultra low life cycle costs. And that is what I am really proud of when I take a ride on the bridge with my cycling friends.”

Christian Thiel, Head of Technical Sales Steligence® Fabrication Centre

On top of XCarb® recycled and renewably produced steel, every single tonne of steel has been delivered in ArcelorMittal’s innovative range of Arcorox® weathering steel.

When designed with Arcorox® weathering steel together with XCarb® recycled and renewably produced,  the bridge meets all cost, design and strength requirements, while achieving tomorrow’s most stringent embodied carbon and safety targets.

A bridge with Arcorox® sections is designed to last: no need for a protective coating now or in the future: maintenance is low, safety and usage remain high.


More information about the cycle and pedestrian bridge project

The bicycle and pedestrian bridge, linking Esch-sur-Alzette to Esch-Belval, is the longest one of its kind in Europe. The main segment between Esch/Alzette and Belval was completed at the end of 2022.

Ready for a virtual tour? Watch the video!

Read the full article about the project: The curves of Europe’s longest cycle bridge are made from XCarb® recycled and renewably produced steel


Want to know more about XCarb™? 

The XCarb initiative, launched by ArcelorMittal in March 2021, brings together all of ArcelorMittal’s reduced-, low-, and zero-carbon products and steelmaking activities.

Scrap and renewable energy: the levers of low CO2 steel

To produce XCarb® recycled and renewably produced steel, ArcelorMittal uses up to 100% scrap and renewable electricity coming from renewable sources such as solar and wind power.

ArcelorMittal estimates that XCarb® recycled and renewably produced steel has a carbon footprint as low as 0.3 tonnes of CO2 per tonne of steel product when the metallics are 100% scrap, which is certified by a published Environmental Product Declaration (EPD).

Inauguration in the presence of François Bausch, vice-Premier ministre, ministre de la Mobilité et des Travaux publics, Joëlle Welfring, ministre de l'Environnement, du Climat et du Développement durable, Georges Mischo, bourgmestre de la commune d’Esch-sur-Alzette and Simone Asselborn-Bintz, bourgmestre de la commune de Sanem 

Olivier Vassart, CEO Steligence, presenting Joëlle Welfring, ministre de l'Environnement, du Climat et du Développement durable, with an XCarb® recycled and renewably produced souvenir panel 

View of the bridge from below, showing its steel structure and the curves of the path.

One of the beams cut in T and curved in the Steligence® fabrication center to fit into the bridge

Copyright images: 

© Ministère de la Mobilité et des Travaux publics

© ArcelorMittal