Reuse and Recycling of construction and demolition waste
Innovative prefabricated elements with high degree of recycled materials
Reuse structures from demolished buildings
Minimize environmental impacts in construction industry
Develop a RE4-prefabricated energy-efficient building concept
Developing of prefabricated components that can be easily assembled and
Disassembled for future reuse


WEBINAR 1: Solutions for high-quality recycling of CDW

5th December 2019

RE4 project introduction (CETMA) - 10min
Innovative sorting system based on automated robotics (STAM) - 20min
Concrete mix design (QUB) - 20min
Question time – 10min

Find the recording of the first webinar HERE

WEBINAR 2: RE4 prefab building elements incorporating up to 100% of CDW

18th December 2019

RE4 project introduction (CETMA) - 10min
RE4 structural elements (CREAGH) - 15min
RE4 non-structural sandwich panels (RISE) - 15min
RE4 timber elements (ZRS) - 15min
RE4 insulation panels (CETMA) - 15min
RE4 extruded concrete tiles (VORTEX) - 15min
Question time – 10min

Find the recording of the second webinar HERE

WEBINAR 3: How to build a fully recycled house

22nd January 2020

RE4 project introduction (one of the partners involved) – 10min
Demo in Spain (ACCIONA) – 15min
Demo in UK (CREAGH) – 15min
Demo in Italy (STRESS) – 15min
Replicability in Taiwan (NTUST) – 15min
Disassembly strategies (ACCIONA&ZRS) – 15min
Question time – 10min

Find the recording of the third webinar HERE

WEBINAR 4: Solutions for a wide acceptance of CDW-based materials and component

6th February 2020

RE4 project introduction (one of the partners involved) – 5min
Standardization/quality issues (RISE/QUB) – 20min
Public authority perspective (ACR+) – 20min
LCA, LCC, SLCA issues (STRESS) – 20min
Question time – 10min

Find the recording of the fourth webinar HERE


25.09.2020 | DGNB Sustainability Challenge winners!

The awards just keep coming! 

The RE4 project won the DGNG Sustainability Challenge 2020 in the “Research” Category!

Good feedback from the awarding authority that was impressed by the complexity of the project, the outstanding results obtained, and the proof of concept, that is quite difficult to see in projects focused on circular economy.

It is amazing to see what an important role RE4 is playing in improving the circular economy in construction. Thank you to all the partners for reaching this goal.

Read more and enjoy!

09.09.2020 | RE4 DNGB Sustainability challenge

The RE4 project has been selected by the Deutsche Gesellschaft für Nachhaltiges Bauen - DGNB e. V. (German Sustainable Building Council) as one of three finalists in this year’s Sustainability Challenge.

The official voting is now online and we would appreciate if you could give us a vote. The voting page is in German, you can make the selection on the right side of the page and click "Jetzt Abstimmen".


The winner will be announced at the conference ‘Day of Sustainability’ on the 21st of September in Stuttgart. We will be presenting our project at the conference and are looking forward to seeing some of you there. Due to the current circumstances, there are only few tickets for the event but you can also register to take part digitally.

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