Research project promotes the reuse of concrete in construction

The Haute école du paysage, d'ingénierie et d'architecture de Genève (HEPIA) is investigating the reuse of concrete slabs from demolition work as part of the CUT project. The aim of the project is to validate this reuse and thus promote more circular construction.

Genf, May 2026

The Materials and Structures Group of the Institut du patrimoine construit, d’architecture, de la construction et du territoire(inPACT) at the Haute école du paysage, d’ingénierie et d’architecture de Genève(HEPIA) is leading the Concrete Upcycling Techniques(CUT) research project. The project, led by Professor Maléna Bastien Masse, aims to integrate the reuse of concrete slabs into construction practice, as detailed in a press release. The aim is to reduce the industry’s CO2 footprint. The project is supported by the Swiss National Science Foundation(SNSF) and is being carried out in collaboration with Professor Corentin Fivet’s Structural Xploration Lab at the Swiss Federal Institute of Technology Lausanne(EPFL).

The project aims to preserve concrete slabs during the demolition of buildings. The slabs are sawn up on site and then analysed by HEPIA researchers. The aim is to find out whether these slabs can be reused. The panels approved for reuse are then used in new buildings. The project is also investigating how they can be joined together during reuse. Advanced techniques and materials such as high-performance fibre-reinforced cementitious composite (CFUP) will be used.

“The construction industry loves concrete. It is an indispensable, versatile, adaptable and cost-effective material, but it is also extremely harmful to the environment. One solution is obvious: reuse,” reads the press release. “By recovering and reusing components from existing buildings for new construction projects, concrete consumption is reduced, resulting in a lower CO2 footprint.”

HEPIA is a Geneva-based university that specialises in education and research in the fields of engineering, architecture and the environment, particularly in the areas of materials and sustainable construction. The university is part of the University of Applied Sciences Western Switzerland(HES-SO).

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