Dill, Tobias Axel

Diploma Thesis:
1910

Topic:
Analysis of the environmental impact on concrete 3D printing

Editor:
Tobias Axel Dill

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

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

Editing Period:
29.11.2022 until 08.05.2023

Abstract:
Within the scope of the work, a differentiated analysis of environmental influences on concrete 3D printing is carried out. The horizon of consideration refers to the construction site, to the structures produced there and the interactions between the different influences and the printing equipment, the process sequence and the extruded building material. Especially vertical elements of residential and commercial buildings serve as the basis of the investigation. To be distinguished from each other are any impacts that can be defined as "natural" and result, for example, from influences of water, wind, soil and the sun, as well as further impacts that exist through society, politics and the interfaces of the basic building realization. In order to be able to qualitatively assess the consequences for concrete 3D printing due to the influences, system types, specifically those of the truck-mounted concrete pump and those of the gantry crane system, and subsequently the printing methodologies are used for further consideration. In the context of natural environmental impacts, similar recommended actions are recommended in the form of curing methods. The duration and intensities depend on the respective construction site scenario (building material, system, climate). Problems of further impacts mostly result from restrictions in the realization of printed components due to legal hurdles, insufficiently optimized and applicable software solutions, logistics or unforeseeable events or circumstances that can only be influenced to a limited extent. Compared to conventional formwork construction, concrete 3D printing can limit or eliminate many of the circumstances in degree of impact. In addition, further research is needed to ensure aspects of the regulatory framework or the implementation of optimal software.