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3D Printing Concrete on temporary surfaces: The design and fabrication of a concrete shell structureBorg Costanzi, C. (author), Ahmed, Z. Y. (author), Schipper, H.R. (author), Bos, F. (author), Knaack, U. (author), Wolfs, R.J.H. (author)One of the geometrical restrictions associated with printed paste materials such as concrete, is that material must be self-supporting during printing. In this research paper a new methodology for 3D Printing Concrete onto a temporary freeform surface is presented. This is achieved by setting up a workflow for combining a Flexible Mould...journal article 2018