Abstract
The realization of full automation in 3D Concrete Printing (3DCP) encounters numerous obstacles, notably the absence of automated and inline testing methodologies to measure the fresh properties at the construction site. To address this challenge, this study presents an automated sensor-printer integrated instrument with multifunctional capabilities of conducting penetration, compression, shear, and tensile tests in inline mode. The developed system is integrated with a 3D printer and controlled from the main station. To validate the instrument performance, it was used for inline penetromtery testing to measure the structural build-up of printed layers, and its results were correlated with the conventional compressive and shear strength tests. Additionally, the responsiveness of the instrument to the material variation was validated. This research represents a substantial advancement for in-situ characterization of structural build-up and quality control, while also showcasing its potential utility in mix design development.
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