Print Email Facebook Twitter Effects of 3D Concrete Printing Phases on the Mechanical Performance of Printable Strain-Hardening Cementitious Composites Title Effects of 3D Concrete Printing Phases on the Mechanical Performance of Printable Strain-Hardening Cementitious Composites Author van Overmeir, A.L. (TU Delft Materials and Environment) Šavija, B. (TU Delft Materials and Environment) Bos, Freek P. (Eindhoven University of Technology; Technische Universität München) Schlangen, E. (TU Delft Materials and Environment) Date 2023 Abstract Several studies have shown the potential of strain-hardening cementitious composites (SHCC) as a self-reinforcing printable mortar. However, papers published on the development of three-dimensional printable SHCC (3DP-SHCC) often report a discrepancy between the mechanical properties of the cast and printed specimens. This paper evaluates the effect of each successive phase of the printing process on the mechanical properties of the composite. To this end, materials were collected at three different stages in the printing process, i.e., after each of mixing, pumping, and extruding. The collected 3DP-SHCC materials were then cast in specimen moulds and their mechanical properties after curing were obtained. The resulting findings were juxtaposed with the mechanical properties of the specimens derived from a fully printed 3DP-SHCC element, and our findings indicate that while the density and the compressive strength are not significantly influenced by the printing process, the flexural and tensile strength, along with their associated deflection and strain, are strongly affected. Additionally, this research identifies the pumping phase as the primary phase influencing the mechanical properties during the printing process. Subject 3DP-SHCCmechanical properties3D concrete printingprinting process3DP-ECC To reference this document use: http://resolver.tudelft.nl/uuid:f7b33c23-4308-4535-95b1-22b668988152 DOI https://doi.org/10.3390/buildings13102483 ISSN 2075-5309 Source Buildings, 13 (10) Part of collection Institutional Repository Document type journal article Rights © 2023 A.L. van Overmeir, B. Šavija, Freek P. Bos, E. Schlangen Files PDF buildings_13_02483.pdf 9.39 MB Close viewer /islandora/object/uuid:f7b33c23-4308-4535-95b1-22b668988152/datastream/OBJ/view