Abstract
This paper introduces a new approach for extending the geometrical freedom of shotcrete 3D printing. Up to now, manual shotcrete manufacturing and the shotcrete printing process has been performed with a continuous material flow to avoid nozzle clogging, which is caused by the solidification of the fresh material within the printing system. However, this requires a continuous printing path for the entire component, which leads to considerable confines in terms of printable geometries. To overcome this restriction, potential factors to control the printing interruption process were determined and quantitatively investigated. Based on 3D specimen data, the most suitable parameter settings for realizing deterministic short term printing gaps without nozzle blockage were identified. For final validation, these settings served in the robotic fabrication of a test element and showed promising results.
| Original language | English |
|---|---|
| Title of host publication | Proceedings of the 38th International Symposium on Automation and Robotics in Construction, ISARC 2021 |
| Editors | Chen Feng, Thomas Linner, Ioannis Brilakis |
| Publisher | International Association for Automation and Robotics in Construction (IAARC) |
| Pages | 725-732 |
| Number of pages | 8 |
| ISBN (Electronic) | 9789526952413 |
| DOIs | |
| Publication status | Published - 2021 |
| Event | 38th International Symposium on Automation and Robotics in Construction, ISARC 2021 - Dubai, United Arab Emirates Duration: 2 Nov 2021 → 4 Nov 2021 |
Publication series
| Name | Proceedings of the International Symposium on Automation and Robotics in Construction |
|---|---|
| Volume | 2021-November |
| ISSN (Electronic) | 2413-5844 |
Conference
| Conference | 38th International Symposium on Automation and Robotics in Construction, ISARC 2021 |
|---|---|
| Country/Territory | United Arab Emirates |
| City | Dubai |
| Period | 2 Nov 2021 → 4 Nov 2021 |
Keywords
- automation
- concrete construction
- process control
- robotic fabrication
- shotcrete 3D printing (SC3DP)
- surface scanning
ASJC Scopus subject areas
- Building and Construction
- Civil and Structural Engineering
- Control and Systems Engineering
- Safety, Risk, Reliability and Quality
- Artificial Intelligence
- Computer Science Applications
Projects
- 1 Finished
-
Process Control and Adaptive Path Planning for Additive Manufacturing Processes Based on Industrial Robots with an Extended Degree of Freedom (sub-project B04 of the Collaborative Research Centre-Transregio 277: Additive Manufacturing in Construction (AMC) - The Challenge of Large Scale)
Raatz, A. (Principal Investigator)
1 Jan 2020 → 31 Dec 2023
Project: Research
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