new technological solutions and strategies for the development

REuse and REcycling of CDW materials and structures in energy efficient pREfabricated elements for building REfurbishment and construction

RE4 is a collaborative research project of 13 partner institutions from science and industry funded under the European Union’s Horizon 2020 research and innovation programme. The main aim of the project is to promote new technological solutions and strategies for the development of prefabricated elements with high degree of recycled materials and reused structures from demolished buildings.

Project Objetives

The RE4 project focuses on the suitable design concept and building elements that can be easily assembled and disassembled for future reuse, containing up to 65% in weight of recycled materials from CDW-derived materials and structures. The building component will be suitable for both new construction and building refurbishment. The final building design will be used to demonstrate the developed solutions and support the dissemination of the project. The demonstration activities will be carried out in Spain and Ireland to validate concept in different climatic conditions. A demonstration of the high replication potential of the developed solutions outside EU will be achieved through the construction of a further demo building in Taiwan.

During the project lifetime several intermediate but self-standing industrial results will be achieved, such as:

  • A number of pre-fabricated building components based on the use of recycled materials and reused structures;
  • An innovative RE4 CDW sorting system based on an automated robotics system equipped with advanced sensors;
  • The definition of related production processes and equipment, in order to make the RE4 concept possible;
  • A BIM-compatible tool (Building information Modelling) for the management of types and quantities of generated CDW, in order to maximise their recycling and reuse.


01/09/2016 - 28/02/2020 (42 months)


The project is coordinated by CETMA and consists of 12 partners from 7 European countries and 1 extra EU country (Taiwan). The Consortium has a strong industrial character (4 SMEs and 3 LEs), complemented by the specific competences of 5 top level research and innovation organizations and 1 association.

  • Centro di progettazione, design & tecnologie dei materiali (CETMA)
  • CBI Betonginstitutet AB
  • CDE Global Limited
  • Creagh concrete products limited
  • The Queen's University of Belfast
  • Roswag architekten gesellschaft von architekten mbh
  • Sviluppo tecnologie e ricerca per l'edilizia sismicamente sicura ed ecosostenibile scarl (STRESS)
  • National Taiwan University of Science and Technology
  • Association des cites et des regions pour le recyclage et la gestion durable des ressources (ACR+)



This project has received funding from the European Union´s Horizon 2020 Programme for research and innovation under grant agreement No. 723583. 

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