2Dx®-ENHANCED SPEED BUMPS CAST IN RÄTTVIK

At Gunnar Prefab’s site in Rättvik, four new speed bumps have been cast. Two in conventional concrete and two enhanced with our graphene-based additive 2Dx^® CO-NXT. The goal is to test how climate-smart concrete solutions can perform under real traffic conditions in Sundsvall.

Together with Gunnar Prefab, Swerock and Grafoam and Sundsvall Municipality, we’re evaluating how nano-reinforced concrete performs compared to conventional concrete. The speed bumps, cast by Gunnar Prefab, will soon be installed at the Gärdehov roundabout in Sundsvall, with the bumps enhanced with 2Dx^® CO-NXT in one traffic direction and conventional bumps in the other, allowing direct comparison under very similar conditions.

For Daniel Glad, Production Manager at Gunnar Prefab, the project represents both innovation and opportunity.

“We’re hoping the reinforcement makes the concrete stronger and more wear-resistant, allowing our products to last longer. It’s so much fun to be part of developing something new!”

The reinforced speed bumps will face real traffic and tough conditions. The team will be able to evaluate the differences between the reinforced and reference bumps after a few months, and certainly following their first winter, providing valuable insights into durability and wear.

For Gunnar Prefab, the collaboration has been smooth and rewarding. The team is already planning to cast more products enhanced with 2Dx^® CO-NXT to explore its full potential.

“It will be exciting to follow the results in Sundsvall and see how the speed bumps hold up over time. The collaboration with 2D fab and partners has been great so far, and we’re already looking at testing road barriers next,” says Daniel Glad.

ABOUT THE PROJECT
The project, called “Verification of new technology for climate-smart concrete” runs from January 2025 to December 2026. It is co-financed by Norrlandsnavet, the Swedish Energy Agency, Vinnova and Formas, and carried out together with 2D fab, Gunnar Prefab, Grafoam, Swerock and Sundsvall Municipality. The goal is to demonstrate durable, sustainable and cost-efficient infrastructure solutions using concrete reinforced with graphene-based materials.

Want to know more? Contact us today!

Jan Nordin, Business Developer, 2D fab
Mail: jan.nordin@2dfab.se
Phone: +46 73 802 83 70