Towards the end of the S3 project, partners travelled to the Netherlands to share their experience of circular approaches to reconstruction

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In Eindhoven, the team visited laboratories at Eindhoven University of Technology to learn about research into the reuse of construction materials. In Rotterdam, participants visited Everox to see its concrete recycling equipment and learn how it works.
At the university, partners toured a laboratory where researchers study construction materials and their potential for reuse. They were shown equipment used to crush, process and analyse concrete, and learned how researchers assess the resulting fractions. Understanding the properties of each fraction helps determine where recovered materials can be used in new construction products.

In Rotterdam, partners visited Everox, the Dutch S3 partner developing concrete recycling technologies. They saw its pilot plant and how the different pieces of equipment work together throughout the process. Partners were also shown laboratory equipment used to analyse and test materials at different stages of recycling.
Particular attention was given to equipment previously used in pilot trials in Ukraine. It had been supplied to Ukrainian partners to process a batch of concrete from buildings destroyed during Russia’s full-scale invasion. After the trials, the equipment was returned to the Netherlands, where some components underwent maintenance. The experience in Ukraine highlighted the need to adapt the equipment to different operating conditions, including low temperatures and interruptions to the electricity supply.

The Ukrainian trials also provided useful feedback for the developers. Working in these conditions helped the Everox team identify ways to make future equipment easier to assemble and dismantle, and better suited to a range of operating environments.
The process brings together several stages, from preparing and crushing concrete to separating, analysing and reusing the recovered materials. This was the approach explored by the S3 team during trials in Ukraine.
One focus of S3’s research has been the finest fraction of recycled concrete. This fraction has a higher cement content, and cement is one of the most expensive and resource-intensive components of concrete. The team therefore investigated whether it could partially replace cement and mineral additions in new concrete. Potential applications also include foam concrete and mixes for 3D printing. Some of the research findings have already been published.
S3’s findings have also been used to develop new products. In Ukraine, a pilot batch of several thousand wall blocks has been produced in collaboration with NETICS using recycled concrete waste. This offers a practical example of how materials recovered from demolished, war-damaged buildings can be used in new construction products.
The project’s experience shows that further research and practical trials are needed before these approaches can be adopted more widely. Material certification, regulatory requirements and the involvement of manufacturers willing to work with recycled materials also remain important.
The visits to Eindhoven and Rotterdam offered an opportunity to see how research and pilot-scale concrete recycling are carried out in the Netherlands, and to discuss how these approaches could be developed further for Ukraine’s reconstruction.
In Eindhoven, the team visited laboratories at Eindhoven University of Technology to learn about research into the reuse of construction materials. In Rotterdam, participants visited Everox to see its concrete recycling equipment and learn how it works.
At the university, partners toured a laboratory where researchers study construction materials and their potential for reuse. They were shown equipment used to crush, process and analyse concrete, and learned how researchers assess the resulting fractions. Understanding the properties of each fraction helps determine where recovered materials can be used in new construction products.

In Rotterdam, partners visited Everox, the Dutch S3 partner developing concrete recycling technologies. They saw its pilot plant and how the different pieces of equipment work together throughout the process. Partners were also shown laboratory equipment used to analyse and test materials at different stages of recycling.
Particular attention was given to equipment previously used in pilot trials in Ukraine. It had been supplied to Ukrainian partners to process a batch of concrete from buildings destroyed during Russia’s full-scale invasion. After the trials, the equipment was returned to the Netherlands, where some components underwent maintenance. The experience in Ukraine highlighted the need to adapt the equipment to different operating conditions, including low temperatures and interruptions to the electricity supply.

The Ukrainian trials also provided useful feedback for the developers. Working in these conditions helped the Everox team identify ways to make future equipment easier to assemble and dismantle, and better suited to a range of operating environments.
The process brings together several stages, from preparing and crushing concrete to separating, analysing and reusing the recovered materials. This was the approach explored by the S3 team during trials in Ukraine.
One focus of S3’s research has been the finest fraction of recycled concrete. This fraction has a higher cement content, and cement is one of the most expensive and resource-intensive components of concrete. The team therefore investigated whether it could partially replace cement and mineral additions in new concrete. Potential applications also include foam concrete and mixes for 3D printing. Some of the research findings have already been published.
S3’s findings have also been used to develop new products. In Ukraine, a pilot batch of several thousand wall blocks has been produced in collaboration with NETICS using recycled concrete waste. This offers a practical example of how materials recovered from demolished, war-damaged buildings can be used in new construction products.
The project’s experience shows that further research and practical trials are needed before these approaches can be adopted more widely. Material certification, regulatory requirements and the involvement of manufacturers willing to work with recycled materials also remain important.
The visits to Eindhoven and Rotterdam offered an opportunity to see how research and pilot-scale concrete recycling are carried out in the Netherlands, and to discuss how these approaches could be developed further for Ukraine’s reconstruction.
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