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The integration of 3D printing technology into earth construction presents an opportunity to reinvent earthen architecture and construction methods. This by revalorizing earth-based materials sourced from excavation works of major infrastructure projects. This article explores the durability aspects of 3D printed earth architecture, focusing on water resistance against drip impact and natural weathering. Additionally, it examines the efficacy of incorporating bacterial cellulose (BC) as an additive for enhanced water resistance. This suggests a correlation between printing parameters and water resistance. The study outlines material selection, prototyping techniques, and testing methodologies. Findings reveal that BC addition significantly improves erosion resistance, as demonstrated by drip test analyses. Moreover, observations from the weathering study highlight minimal degradation in BC-stabilized samples compared to unstabilized counterparts, which exhibited notable cracking. Finally, the impact of the implementation techniques has been explored, revealing a fragile behavior of printed samples compared to molded ones. This research contributes to a broader thesis centered “harnessing the advantages of cutting-edge construction technologies and eco-design methodologies to valorize excavated soil as construction wastes”.

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Advancing Raw Earth Reinforcement for 3D Printed Architecture - Durability Assessment

  • 会议论文

  • 发表日期：

    2025年

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  • Ola Nashed Kabalan,
  • Thierry Ciblac,
  • Sandrine Marceau,
  • Robert Le Roy

摘要

The integration of 3D printing technology into earth construction presents an opportunity to reinvent earthen architecture and construction methods. This by revalorizing earth-based materials sourced from excavation works of major infrastructure projects. This article explores the durability aspects of 3D printed earth architecture, focusing on water resistance against drip impact and natural weathering. Additionally, it examines the efficacy of incorporating bacterial cellulose (BC) as an additive for enhanced water resistance. This suggests a correlation between printing parameters and water resistance. The study outlines material selection, prototyping techniques, and testing methodologies. Findings reveal that BC addition significantly improves erosion resistance, as demonstrated by drip test analyses. Moreover, observations from the weathering study highlight minimal degradation in BC-stabilized samples compared to unstabilized counterparts, which exhibited notable cracking. Finally, the impact of the implementation techniques has been explored, revealing a fragile behavior of printed samples compared to molded ones. This research contributes to a broader thesis centered “harnessing the advantages of cutting-edge construction technologies and eco-design methodologies to valorize excavated soil as construction wastes”.