| id |
caadria2025_879 |
| authors |
Hosseini, Negar, Farajmandi, Ali, Kalantar, Negar, Ikeda, Margaret, Jones, Evan, Mehta, Miti, Hamedi, Kianoush, Macias Franco, Jesus Guillermo, Mullins, Dyche, Hong, Alex, kokontis, Claire, Moore, Camille, Darnal, Aryabhat and Muliana, Anastasia |
| year |
2025 |
| title |
From Waste to Resource: Transforming eggshells into modular bio-building systems |
| source |
Dagmar Reinhardt, Christiane M. Herr, Anastasia Globa, Jielin Chen, Taro ?Narahara, Nicolas Rogeau (eds.), ARCHITECTURAL INFORMATICS - Proceedings of the 30th CAADRIA Conference, Tokyo, 22-29 March 2025, Volume 3, pp. 487–496 |
| summary |
This study explores the potential of natural shell waste, specifically eggshells and crustacean shells, as sustainable alternative materials for the construction industry. Targeting applications such as pavers, urban furniture, wall panels and modular architectural systems, the research aims to mitigate carbon emissions by repurposing urban food waste and reducing reliance on energy-intensive materials like cement. A bio-building material was developed by combining finely ground eggshells with gelatine and water, yielding a lightweight, fast-drying, and structurally robust compound. Strength tests revealed significant improvements when Bacillus subtilis bacteria were introduced to enhance material crystallisation, resulting in a threefold increase in compressive strength. Geometric exploration focused on modular interlocking designs inspired by soft cells to optimise the eggshell-made blocks for mould-based fabrication, scalability, and aesthetic appeal. The development process included a strong bio-adhesive derived from chitosan to provide the opportunity for larger-scale applications and systems. These modules were successfully scaled to create functional, lightweight prototypes that demonstrate the potential for degradable, adaptable architectural solutions. Compression tests show that despite being lightweight, the integration of biomaterials and geometry creates remarkable strength, reliability, and durability. |
| keywords |
Biomaterial, Eggshell Waste, Soft cells, Interlocking Structures, Low Carbon Emissions, Bio-adhesive, Food waste recycling, Sustainable construction blocks |
| series |
CAADRIA |
| full text |
 file.pdf (2,482,638 bytes) |
| references |
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| last changed |
2025/03/21 12:09 |
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