Additive Manufacturing in Construction
AMC TRR 277

Project A 01

Particle-Bed 3D Printing by Selective Cement Activation (SCA) – Particle Surface Functionalisation, Particle-Bed Compaction and Reinforcement Implementation

This project focusses on high-resolution particle-bed 3D printing of reinforced cementitious composites as a novel technology in the construction industry. To pioneer the understanding of governing mechanisms affecting the material-process interaction, basic interdisciplinary research addressing particle surface functionalisation, tailoring of particle size distribution, particle-bed compaction, liquid intrusion, interparticle and interlayer bonding, active structural build-up control of the matrix, high precision geometries as well as reinforcement integration will be conducted.

Aim

The aim of the project is to gain a deep understanding of the material-process interaction. This will allow to tailor both material and process to obtain desired part properties, so the printed parts can be used for various purposes.

Networking with other projects

The collaboration with A05 focuses on the implementation of reinforcement in SCA printed objects. For the C-Projects the collaboration is as following: form and shape optimisation of 3D printed demonstrators (C02), simulation of stress distribution of free form elements (C01), integration of additional functionalities (C03), BIM containing multiple level of details (C04), technical regulations and staff qualification requirements (C07), integration in the printing process (C06) as well as jointing principles (C05).

Project leaders

Prof. Dr.-Ing. Arno Kwade Prof. Dr.-Ing. Dirk Lowke

Contributors

M. Sc. David Böhler M. Sc. Friedrich Herding M. Sc. Niklas Meier Dr.-Ing. Harald Zetzener

Related Publications

Reduction of the cement content in Selective Cement Activation Effect of Grain Size and Layer Thickness on Hardened State Properties in Selective Cement Activation Particle-bed 3D printing by selective cement activation – Influence of process parameters on particle-bed density Influence of Material and Process Parameters on Hardened State Properties of Shotcrete 3D-Printed Elements Effect of Curing in Selective Cement Activation Fluid intrusion in powder beds for selective cement activation – an experimental and analytical study Material-process interactions in particle bed 3D printing and the underlying physics Evaluating the Effect of Methyl Cellulose on Hardened State Properties in Selective Cement Activation Material-process interactions in particle bed 3D printing and the underlying physics Fluid intrusion in powder beds for selective cement activation – An experimental and analytical study Particle bed 3D printing by selective cement activation – Applications, material and process technology

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