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96 CPI %u2013 Concrete Plant International %u2013 5 | 2025 www.cpi-worldwide.comInorganic pigments from Lanxess are opening up new design possibilities in 3D concrete printing. A current example is the concrete sculpture %u201cDuality of Skin and Core,%u201d which was designed using red and black iron oxide pigments. It is currently on display in the %u201cTime. Space. Existence.%u201d exhibition at the Venice Architecture Biennale. Assistant Professor Cristina Nan and architect Mattia Zucco from the Department of the Built Environment at Eindhoven University of Technology developed the concrete sculpture as an architectural experiment. The modular column was realized in collaboration with Lanxess and Dutch 3D printing specialist Vertico.The project shows how color, computer-generated patterns, and material performance can be integrated into digitally controlled manufacturing processes. This opens up new aesthetic and constructive approaches for the architecture of tomorrow. Innovative design and materiality in 3D concrete printing%u201cDuality of Skin and Core%u201d reinterprets the classic architectural column. A slit-like opening in the cladding reveals the colored interior %u2013 hence the name. Until now, a monolithic, 3D-printed concrete sculpture at Venice Architecture BiennaleNew design options through colored iron oxide pigments The %u201cDuality of Skin and Core%u201d column is an experimental architectural proto-structure currently on display at the Venice Architecture Biennale 2025. Pigments from Lanxess were used for the colored design of the concrete. They ensure consistently high color quality and consistency and can be used without restriction in 3D concrete printing. %u00a9Sukgyo Lloyd Lee %u00a9Sukgyo Lloyd Lee