Quality Assessment of Printable Strain Hardening Cementitious Composites Manufactured in Two Different Printing Facilities

Conference paper (2020)

Authors

Stefan C. Figueiredo Eindhoven University of Technology
A.L. van Overmeir Materials and Environment - CEG
Karsten Nefs Eindhoven University of Technology
E. Schlangen Materials and Environment - CEG
Theo A. M. Salet Eindhoven University of Technology
B. Šavija Materials and Environment - CEG
Akke S. J. Suiker Eindhoven University of Technology
Freek Bos Eindhoven University of Technology
Research Group
Materials and Environment (CEG) (TU Delft)
Copyright: © 2020 Stefan C. Figueiredo, A.L. van Overmeir, Karsten Nefs, E. Schlangen, Theo A. M. Salet, B. Šavija, Akke S. J. Suiker, Freek P. Bos
DOI: https://doi.org/10.1007/978-3-030-49916-7_81
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Published Date

2020

Language

English

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Faculty

Civil Engineering & Geosciences

Department

Materials- Mechanics- Management & Design

Research Group

Materials and Environment

Abstract

Over the past few years, several studies have shown the potential of three-dimensional concrete printing (3DCP) for applications in building and civil engineering. However, only a few studies have compared the properties of the fresh printing material and the quality of the printed elements from different printing facilities. Variations in the manufacturing conditions caused by the mixing procedures, the pumping device and the nozzle shape and/or dimensions may influence the quality of the printed elements. This study investigates the differences in the fresh and hardened properties of a printing material tested in two different printing facilities. The pump pressure and temperature experienced by the printing material during the printing session are monitored real-time. Hardened properties are measured for the printed elements, such as the bending capacity, the apparent density, and the air void content. The research shows that two different printing facilities may result in printed elements with relative differences in flexural strength and volumetric density of 49% and 7%, respectively.

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