Version 1
: Received: 22 December 2021 / Approved: 22 December 2021 / Online: 22 December 2021 (12:02:15 CET)
Version 2
: Received: 2 January 2022 / Approved: 4 January 2022 / Online: 4 January 2022 (12:24:38 CET)
Ferretti, E.; Moretti, M.; Chiusoli, A.; Naldoni, L.; De Fabritiis, F.; Visonà, M. Mechanical Properties of a 3D-Printed Wall Segment Made with an Earthen Mixture. Materials2022, 15, 438.
Ferretti, E.; Moretti, M.; Chiusoli, A.; Naldoni, L.; De Fabritiis, F.; Visonà, M. Mechanical Properties of a 3D-Printed Wall Segment Made with an Earthen Mixture. Materials 2022, 15, 438.
Ferretti, E.; Moretti, M.; Chiusoli, A.; Naldoni, L.; De Fabritiis, F.; Visonà, M. Mechanical Properties of a 3D-Printed Wall Segment Made with an Earthen Mixture. Materials2022, 15, 438.
Ferretti, E.; Moretti, M.; Chiusoli, A.; Naldoni, L.; De Fabritiis, F.; Visonà, M. Mechanical Properties of a 3D-Printed Wall Segment Made with an Earthen Mixture. Materials 2022, 15, 438.
Abstract
This study provides a contribution to the research field of 3D printed earthen buildings, focusing, for the first time, on the load-bearing capacity of these structures. The study involves the entire production and testing process of the earthen elements, from design, to the preparation of the mixture and the 3D printing, up to the uniaxial compression test on a wall segment. The results indicate that 3D printed earthen elements have a compressive strength of 2.32 MPa, comparable to that of rammed earth structures. The experimental data also made it possible to draw conclusions on the action of the infill, which seems to have the function of stopping the propagation of cracks. This has a positive effect on the overall behavior of 3D printed earthen elements, since it avoids the onset of dilative behavior in the final stages of the load test and maintains ultimate load values higher than 50% of the maximum load.
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Commenter: Elena Ferretti
Commenter's Conflict of Interests: Author