Exel Composites’ Flax Fiber Profiles Solution for Bio-Based Dutch Bridge

April 30 2018

Exel Composites has supplied 6 km of bio-based composite profiles for an innovative bio-based bridge in Bergen op Zoom, the Netherlands, the first viaduct in the world to be renovated using bio-based materials. Exel's structural profiles, manufactured using flax fiber reinforcement and bio-based resin, were employed to create the bridge's eye-catching side screens.

Exel supplied the lightweight composite profiles to contractor Dura Vermeer, which assembled them on steel frames and then transported them to the site, where they were installed over three nights. The renovation also involved replacing the existing steel guide rails with wooden versions, installing bio-based barriers and information panels, and broadening the fauna passage. The bridge was officially opened to the public in December 2017.

The poles used to create the screens vary in height up to 4.5 m and each consists of six pultruded composite box profiles, 90 mm x 25 mm in cross section. Exel, therefore, supplied profiles in a variety of lengths to create the required shape. The company also met the project's specifications for color matching, a challenge when using natural materials, and surface quality.

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