Publication
NON-DESTRUCTIVE EVALUATION OF STRUCTURAL ANISOTROPY IN 3D-PRINTED MORTAR USING MULTI-FEATURE IMPACT-ECHO ANALYSIS
(STEF92 Technology, 2026, Kristyna Hrabova, Richard Dvorak, Dalibor Kocab)
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Extrusion-based three-dimensional concrete printing (3DCP) produces a periodic layer structure that renders the printed material inherently anisotropic. Quantifying this anisotropy non-destructively is essential for in-situ quality assurance. In this study, impact-echo (IE) signals were acquired on 52 laboratory-produced 3D-printed mortar prisms in two layer orientations: K (layers perpendicular to the test surface) and R (layers parallel to the test surface). Three IE wave types per specimen - longitudinal (FL), ...
Green Buildings Technologies and Materials2026