Self-compacting concrete with recycled concrete aggregates
Informazioni aggiuntive
Autori
Horat A.,
Amicarelli F.,
Lloret Fritschi E.,
Paglia C.,
Stürwald S.
Tipo
Articolo pubblicato in rivista scientifica
Anno
2024
Lingua
Inglese
Sommario
The focus of the present research is the "Foldcast" project of the Accademia di Architettura of the Università della Svizzera italiana (USI). Foldcast pursues the goal of being able to produce structurally optimised concrete components. A thin paper of 0.7 mm thickness serves as material-saving formwork. However, this type of formwork would be damaged by mechanical concrete compaction and consequently, it can only be used in combination with self-compacting concrete (SCC). Due to its special flow properties, SCC requires a higher cement paste content compared to concrete of conventional workability and therefore tends to also have a higher cement content. This contradicts the sustainable project goals of Foldcast. The aim of the present research is to develop a self-compacting concrete that is as sustainable as possible, which is achieved by conserving natural gravel resources through the use of recycled concrete aggregates and reducing CO2 emissions by reducing cement contents. Four of the tested concrete mix compositions can be recommended for use with Foldcast, based on adequate workability and sufficient strength. Depending on the mix design, the greenhouse gas emissions of the material can be reduced by up to 23%.
Parole chiave
Paper formwork, Self-compacting concrete
Periodico
Concrete Plant Iternational (CPi)
Volume
5
Pagine (o numero dell’articolo)
26-34
Diffusione
Licenza
Diritti riservati
Visibilità
Pubblico
Status open access
Green
