PSI - Issue 44

Available online at www.sciencedirect.com Structural Integrity Procedia 00 (2022) 000–000 Available online at www.sciencedirect.com ScienceDirect

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ScienceDirect

Procedia Structural Integrity 44 (2023) 2350–2355

© 2023 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of the scientific committee of the XIX ANIDIS Conference, Seismic Engineering in Italy. Abstract The experimental research presented in this contribution highlights the possibility of producing foamed concretes with target dry densities of 1550±50 kg/m 3 and 1750±50 kg/m 3 for the use in structural applications, thanks to compressive strengths greater than 25 MPa. The lower structural weight compared with ordinary concrete suggests the idea of using this material in seismic areas to exploit its advantages in relation to inertial forces. However, the reduced elastic modulus compared with ordinary concrete of equal compressive strength must be considered. In addition to demonstrating the beneficial effect of reducing the maximum diameter of the fine sand used to produce the foamed concrete, this contribution also shows how the behavior of a reinforced concrete frame changes (increase in the main vibration mode and decrease of the maximum shear at the base of the frame) if the foamed concrete presented in this study is used instead of ordinary concrete of equal compressive strength. © 2022 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license ( https://creativecommons.org/licenses/by-nc-nd/4.0 ) Peer-review under responsibility of the scientific committee of the XIX ANIDIS Conference, Seismic Engineering in Italy Keywords: Structural foamed concrete; compressive strength; lightweight concrete; reinforced concrete frame. 1. Introduction Foamed concrete belongs to the category of lightweight concrete; this material is characterized by a system of air voids that can be interconnected (open-cell structure) or not interconnected (closed-cell structure); the presence of the pores makes it possible to achieve low density values, between 100 kg/m 3 (Falliano et al, 2022) and 2000 kg/m 3 , when compared with those of a traditional concrete. The void system, within the mixture, can be achieved in different ways. XIX ANIDIS Conference, Seismic Engineering in Italy Structural foamed concrete: preliminary studies for applications in seismic areas Devid Falliano a, *, Luciana Restuccia a , Alessio Vinci a , Giuseppe Andrea Ferro a a Department of Structural, Geotechnical and Building Engineering, Politecnico di Torino, Corso Duca degli Abruzzi, 24, 10129 Turin, Italy

* Corresponding author. E-mail address: devid.falliano@polito.it

2452-3216 © 2022 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of the scientific committee of the XIX ANIDIS Conference, Seismic Engineering in Italy

2452-3216 © 2023 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of the scientific committee of the XIX ANIDIS Conference, Seismic Engineering in Italy. 10.1016/j.prostr.2023.01.300