Multi-material 3D concrete printing: Automated hybrid reinforcements using textile and strain-hardening cementitious composites
Publikation: Beitrag in Fachzeitschrift › Forschungsartikel › Beigetragen › Begutachtung
Beitragende
Abstract
3D concrete printing (3DCP) faces challenges in reinforcement integration. This study proposes a multi-material printing strategy incorporating carbon textiles and highly flowable SHCC bonding agents as hybrid reinforcements. A custom three-channel nozzle was developed to enable synchronized mortar deposition and reinforcement placement with a demonstration in the physical world. The effects of textile grid size and reinforcement configuration on flexural performance were evaluated through four-point bending tests. Results showed that, compared to the reference group, the specimen with dense grids (5 mm) achieved a 305.6 % enhancement in flexural strength (from 3.6 MPa to 14.6 MPa) and a 3100 % improvement in ultimate deflection (0.2 mm–6.4 mm), respectively. When the specimen was fully reinforced at every interface, the energy dissipation was 383.3 % higher than that of the specimen only reinforced at the bottom interface. A theoretical model with 87.3 %–95.2 % accuracy was proposed. These findings demonstrate the effectiveness of the proposed strategy in simultaneously enhancing the flexural strength and ductility in 3DCP.
Details
| Originalsprache | Englisch |
|---|---|
| Aufsatznummer | 106361 |
| Seitenumfang | 18 |
| Fachzeitschrift | Cement and Concrete Composites |
| Jahrgang | 165 |
| Publikationsstatus | Veröffentlicht - Jan. 2026 |
| Peer-Review-Status | Ja |
Externe IDs
| Scopus | 105018300873 |
|---|
Schlagworte
Forschungsprofillinien der TU Dresden
DFG-Fachsystematik nach Fachkollegium
Fächergruppen, Lehr- und Forschungsbereiche, Fachgebiete nach Destatis
Ziele für nachhaltige Entwicklung
ASJC Scopus Sachgebiete
Schlagwörter
- 3D concrete printing, Strain-hardening cementitious composites, Bonding agent, Multi-material printing, Flexural properties, Textiles