Samverkande bropelare av kvarsittande 3D-utskriven betongform & igjuten SKB

Sammanfattning: In summary, this study demonstrates the potential of using 3D-printed concrete forms to innovate the use of concrete. By eliminating the need for traditional wooden or steel molds, both time and materials can be saved. Additionally, 3D printing opens up new design possibilities by creating complex geometries that previously have been difficult to achieve. The focus of the study was on creating 3D-printed concrete columns capable of being filled with self-compacting concrete and being frost-resistant. Through meticulous documentation and problem-solving, a column prototype of 1.44 meters was successfully produced. The results suggest that it is feasible to construct taller columns using the same methodology. 3D-printing of concrete is a relatively new technology that has not yet generated extensive research and literature. Research efforts in the field are therefore primarily based on previous experiments conducted at the Royal Institute of Technology (KTH) and other educational institutions, as well as expert knowledge from concrete teachers and experts. Since knowledge and experience in the field are limited, six practical experiments have been conducted to test concrete recipes and assess the usability of the technology. This approach is typical for new techniques and innovations, where previous research and experience form the foundation for further exploration and understanding of the technology. The documentation of the entire project proved crucial in identifying and resolving issues. Unfortunately, time constraints prevented the casting of the column molds with self-compacting concrete. Future research should continue to apply the methodology of documentation and collaboration to improve and advance 3D printing of concrete forms. Drawing lessons from past experiences can enhance efficiency and reliability in this field. In conclusion, the findings and insights from this study indicate that 3D-printed concrete forms have the potential to be a technology of the future in the construction industry. Through further research and development, these methods can be enhanced to contribute to the creation of tall, frost-resistant concrete structures with increased efficiency and sustainability.