TY  - CONF
AU  - Mitrović, Stefan
AU  - Vidović, Milica
AU  - Ignjatović, Ivan
AU  - Dragaš, Jelena
PY  - 2024
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/3482
AB  - In the last few decades, the technology of 3D concrete printing (3DCP) has had a significant
development. This technology has a great potential to improve efficiency in the construction
industry. It can provide safer site working conditions, material savings, a reduction of
construction time, and a high versatility of architectural and structural design. However, this new
technology is still not fully investigated. The wider application is limited by the lack of standards
and guidelines for design and production.
The literature review showed that, there are only a few studies investigating structural behaviour
of 3DCP structures and elements. Beams and walls with and without addition of fibers,
reinforcement or cables under ultimate loads were tested. The incorporation of reinforcement in
the printing process, connections between printed pieces and long-term behaviour of 3DCP
elements under sustained load are opened questions.
The topic of this research was an experimental testing of 3DCP truss girder. Printing of truss
girder was done using a commercial, ready-to-use premix Sikacrete® 751 3D. In order to print,
the printer head was moved in the Z direction to alternately place two desired path layers. A truss
girder with dimensions of 87x29x12 cm, without reinforcement, was subjected to a four-point
bending test up to failure. During this testing strains in two diagonals, deflection of the two
bottom joints, and ultimate force were measured. Ultimate force was 30 kN and the brittle failure
of tensioned bottom chord occurred. The force in tensioned diagonal was 13.45 kN and in the
compressed one 36.77 kN. Additionally, three samples obtained from the top and bottom chords
were tested on axial tension. The tension capacity of samples was 25.12 kN.
C3  - Proceedings of The 9th International Conference ''Civil Engineering Science & Practice'' GNP 2024, Kolašin, Montenegro, 5-9 March, 2024
T1  - Experimental testing of 3D printed concrete truss girder
EP  - 523
SP  - 517
UR  - https://hdl.handle.net/21.15107/rcub_grafar_3482
ER  - 

@conference{
author = "Mitrović, Stefan and Vidović, Milica and Ignjatović, Ivan and Dragaš, Jelena",
year = "2024",
abstract = "In the last few decades, the technology of 3D concrete printing (3DCP) has had a significant
development. This technology has a great potential to improve efficiency in the construction
industry. It can provide safer site working conditions, material savings, a reduction of
construction time, and a high versatility of architectural and structural design. However, this new
technology is still not fully investigated. The wider application is limited by the lack of standards
and guidelines for design and production.
The literature review showed that, there are only a few studies investigating structural behaviour
of 3DCP structures and elements. Beams and walls with and without addition of fibers,
reinforcement or cables under ultimate loads were tested. The incorporation of reinforcement in
the printing process, connections between printed pieces and long-term behaviour of 3DCP
elements under sustained load are opened questions.
The topic of this research was an experimental testing of 3DCP truss girder. Printing of truss
girder was done using a commercial, ready-to-use premix Sikacrete® 751 3D. In order to print,
the printer head was moved in the Z direction to alternately place two desired path layers. A truss
girder with dimensions of 87x29x12 cm, without reinforcement, was subjected to a four-point
bending test up to failure. During this testing strains in two diagonals, deflection of the two
bottom joints, and ultimate force were measured. Ultimate force was 30 kN and the brittle failure
of tensioned bottom chord occurred. The force in tensioned diagonal was 13.45 kN and in the
compressed one 36.77 kN. Additionally, three samples obtained from the top and bottom chords
were tested on axial tension. The tension capacity of samples was 25.12 kN.",
journal = "Proceedings of The 9th International Conference ''Civil Engineering Science & Practice'' GNP 2024, Kolašin, Montenegro, 5-9 March, 2024",
title = "Experimental testing of 3D printed concrete truss girder",
pages = "523-517",
url = "https://hdl.handle.net/21.15107/rcub_grafar_3482"
}

Mitrović, S., Vidović, M., Ignjatović, I.,& Dragaš, J.. (2024). Experimental testing of 3D printed concrete truss girder. in Proceedings of The 9th International Conference ''Civil Engineering Science & Practice'' GNP 2024, Kolašin, Montenegro, 5-9 March, 2024, 517-523.
https://hdl.handle.net/21.15107/rcub_grafar_3482

Mitrović S, Vidović M, Ignjatović I, Dragaš J. Experimental testing of 3D printed concrete truss girder. in Proceedings of The 9th International Conference ''Civil Engineering Science & Practice'' GNP 2024, Kolašin, Montenegro, 5-9 March, 2024. 2024;:517-523.
https://hdl.handle.net/21.15107/rcub_grafar_3482 .

Mitrović, Stefan, Vidović, Milica, Ignjatović, Ivan, Dragaš, Jelena, "Experimental testing of 3D printed concrete truss girder" in Proceedings of The 9th International Conference ''Civil Engineering Science & Practice'' GNP 2024, Kolašin, Montenegro, 5-9 March, 2024 (2024):517-523,
https://hdl.handle.net/21.15107/rcub_grafar_3482 .