Studying the Printability of Fresh Concrete for Formwork-Free Concrete Onsite 3D Printing Technology (CONPrint3D)

By Venkatesh Nerella, V. Mechtcherine. 3D Concrete Printing Technology, 2019

166 citations recorded by the source corpus.

Abstract To overcome numerous challenges in the construction industry, many novel approaches for formwork-free 3D concrete printing, generalized as digital construction (DC) have been introduced. CONPrint3D, developed at Technische Universitat (TU) Dresden is an onsite DC technology in which a concrete boom pump is adapted to place fresh concrete with geometrical precision, is discussed. This new construction process inherently requires construction materials with good pumpability, extrudability, and adequate very-early-strength. In addition, fresh concrete rheological properties have to be optimized in conjunction with process parameters such as printing rate and print scenarios. The authors propose a holistic approach for testing and characterizing printability—as a combination of pumpability, extrudability and buildability—of cement-based composites using fresh concrete rheology as a tool with the objective of optimizing DC processes.

Subfields: Automotive Engineering, Building and Construction

View Paper: https://www.semanticscholar.org/paper/2915e60591f6afad92c6604e7b05b4c9134228d1

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In Automotive Engineering

In Building and Construction

Citations in the corpus

A review of 3D concrete printing systems and materials properties: current status and future research prospects (2018, methodology): “1 3D concrete printers At present, three categories of 3D concrete printers, namely, gantry (WinSun, 2018; Le et al., 2012a; Dini, 2015; Wolfs, 2015; Nerella et al., 2016; TU Eindhoven, 2018; BetAbram, 2018), robotic (Concrete Plans, 2018) and crane (Apis Cor, 2018) systems shown in Figure 4, are su”