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Reuse of excavated soil in 3D printing of sustainable earth-based mixtures for low energy buildings

Descrizione del progetto

Stampa 3D per la costruzione con terreni di scavo

I cambiamenti climatici hanno spinto molti settori importanti, tra cui quello edilizio, a cercare alternative più ecologiche (materiali a minor consumo energetico e tecnologie a minor impatto ambientale). Negli ultimi anni le tecnologie di costruzione in terra hanno riscosso un forte interesse, ma gli elevati costi di manodopera e i tempi richiesti ne hanno ostacolato lo sviluppo. Ulteriori terreni di scavo provenienti dalla demolizione di infrastrutture potrebbero fornire materiali più economici ed ecologici. Il progetto RePrintCLAY, nell’ambito del programma di azioni Marie Skłodowska-Curie, intende sfruttare queste idee per sviluppare una combinazione e una strategia di stampa 3D efficiente che utilizzi terreni di scavo con tracce di additivi. Quest’idea sarà oggetto di studio. Se tutto procede secondo i piani, in futuro si potrà costruire in modo più economico e pulito.

Obiettivo

Modern construction materials are energy-intensive, and therefore, the construction industry can reduce emissions by developing alternate building materials and adopting innovative construction technologies. There is an upsurge of interest in earth building technologies, but there are associated limitations such as labour cost and construction time. On the other hand, the construction and demolition of infrastructure produce a surplus of excavated soils that ends up at landfills. In this scenario, processing these soil wastes locally and integrating them in buildings as earth-based construction materials using 3D printing technology is an ideal solution. Therefore, the project assesses the technical feasibility of reusing the excavated soil, for producing earth-based composites, with sustainable additive combinations for enabling 3D printing. An industrial by-product such as Ground Granulated Blast-furnace Slag (GGBS) is proposed as an additive with other inorganic admixtures in trace quantities for treating the soil. The rheological parameters, the time-dependent green strength development characteristics and the long-term compressive strength characteristics of the soil treated with additives will be studied. The microstructure of the hardened earth mixes will be used for explaining their mechanical performance. The project will deliver promising earth mix combinations that are environmentally friendly, printable and made from by-products resources and excavation soil wastes. The outcomes of the project will be instrumental in delivering the decarbonization goals of the construction industry. This project is supported by the excellent research environment provided by the host, Dr Perrot at UBS and Prof. Habert at ETH Zrich, with state-of-the-art facilities for research development, testing and training. This project offers unique scientific opportunities that enable the candidate to return to mainstream research and excel in future career perspectives.

Campo scientifico (EuroSciVoc)

Parole chiave

Programma(i)

Argomento(i)

Meccanismo di finanziamento

HORIZON-TMA-MSCA-PF-EF - HORIZON TMA MSCA Postdoctoral Fellowships - European Fellowships

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Invito a presentare proposte

(si apre in una nuova finestra) HORIZON-MSCA-2021-PF-01

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Coordinatore

UNIVERSITE DE BRETAGNE SUD
Contributo netto dell'UE
€ 211 754,88
Indirizzo
RUE ARMAND GUILLEMOT 27
56100 Lorient
Francia
Regione
Bretagne Bretagne Morbihan
Tipo di attività
Higher or Secondary Education Establishments
Collegamenti
Costo totale
Nessun dato

Partner (1)