1. Experimental study on time dependent behaviour of coarse aggregate concrete mixture for 3D construction printing.
- Author
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Vespalec, Arnošt, Podroužek, Jan, Boštík, Jiří, Míča, Lumír, and Koutný, Daniel
- Subjects
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THREE-dimensional printing , *YOUNG'S modulus , *CONCRETE , *DIGITAL technology , *COHESION - Abstract
[Display omitted] • Evaluation of material without and with coarse aggregates is performed. • Basic equations for the early age digital concrete are established. • 3D construction printing technology is evaluated. This experimental study analyses coarse aggregate-containing and coarse aggregate-free materials from the perspective of additive manufacturing. The primary objective is to identify, through a series of experiments, the fundamental equations that characterise material behaviour at early ages in order to formulate a digital material model. During the research, a previously unreported phenomenon, namely the contradictory development of Young's modulus and cohesion, was observed. In addition, the sensitivity of buildability to changes in material properties was discussed and demonstrated with a motivating example using a spatiotemporal simulation of 3D-printed concrete. [ABSTRACT FROM AUTHOR]
- Published
- 2023
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