In a groundbreaking study, researchers at CY Cergy Paris University have unveiled a pioneering 3D printing technology that could revolutionize the construction sector by utilizing bio-based materials. Led by Valentine Danché from the Laboratory of Mechanics and Materials of Civil Engineering, this innovative approach combines selective binding techniques with an advanced numerical control system and a six-axis articulated arm, enabling the precise deposition of various construction materials.
This new 3D printer design is particularly noteworthy for its ability to work with different powder and bio-based materials, potentially transforming how construction elements are fabricated. “Our system allows for the selective binding of a mineral powder bed with liquid droplets, which opens up exciting possibilities for creating new composites,” Danché explained. This versatility not only enhances the functionality of construction elements but also aligns with the growing demand for sustainable building practices.
The researchers developed a home-made frame that accommodates the necessary geometrical space for the printer’s movement, showcasing the potential for DIY solutions in high-tech applications. The powder deposition is managed via an Arduino-controlled tank, while a pressurized system allows for the precise jetting of millimetric liquid droplets. This dual approach ensures that the materials are applied accurately, which is crucial for achieving the desired structural integrity and performance.
Testing has already begun with a range of materials, including cement particles, water retention agents, and a composite of cement mixed with hemp aggregates. The successful results of these tests validate the prototype’s capabilities and suggest that the construction industry could soon see a wider adoption of bio-based materials, promoting sustainability and reducing reliance on traditional resources.
Danché emphasized the commercial implications of their research, stating, “This innovative selective binding 3D printer could lead to the development of new composites that are not only environmentally friendly but also cost-effective.” As the construction industry faces increasing pressure to adopt sustainable practices, this technology may provide a viable pathway for companies looking to innovate while meeting regulatory requirements and consumer expectations.
The findings of this research have been published in ‘Developments in the Built Environment’, a journal dedicated to advancing knowledge in the construction field. For more insights into their work, you can explore lead_author_affiliation. As the industry continues to evolve, the implications of this research could shape future developments, paving the way for a more sustainable and efficient approach to construction.
