Riedel, Maria

Diploma Thesis:
1902

Topic:
Analysis of work preparation in concrete 3D printing compared with conventional pro-duction

Editor:
Maria Riedel

University Professor Responsible:
Univ.-Prof. Dr.-Ing. Dipl.-Wirt.-Ing. Jens Otto

Supervisor:
University Supervisor: Dipl.-Ing. Patrick Maiwald

Editing Period:
03.06.2022 until 07.10.2022

Abstract:
The work preparation for concrete 3D printing is analysed and recommendations for action are derived from it. For this purpose, two additive manufacturing processes are compared with two conventional manufacturing processes. The processes considered are fine filament printing, concrete ON-site 3D printing, in-situ concrete construction and precast construction. The work preparation process is analysed for each of these four production methods. For this purpose, the phases of process selection, construction sequence planning, provision planning and site equipment planning are examined. The focal points for each planning stage and each manufacturing process are worked out. By comparing these focal points, it is possible to analyse how the work preparation for concrete 3D printing compares to conventional production. It can be stated that the pure sequence of the planning stages can be usefully transferred from conventional to additive manufacturing. In addition, the device for the pressure and the properties of the concrete can be determined as decisive influences for the planning of the construction sequence and the resulting measures of the work preparation. From these comparisons and determinations, a checklist has developed that can be used as a planning aid for future concrete 3D printing projects. In addition, a collection of the previously known key figures for the printing processes has been created, which can also provide support in the work preparation.