77: Development and Bioclimatic Evaluation of Parametrically Designed Geometries For 3d-Printed Concrete Walls

This study investigates the acoustic and thermal performance of 3D-printed walls using geometries based on triply periodic minimal surfaces (TPMS), specifically Gyroid and Primitive. Fabricated through additive manufacturing and evaluated in a tropical climate context, these innovative wall systems demonstrated superior bioclimatic behavior compared to conventional flat walls. Acoustic testing revealed significant enhancements in sound absorption, with improvements of 83% and 58%, respectively. In terms of thermal performance, double-cavity configurations reduced surface temperatures by up to 6 °C, while single-cavity walls exhibited faster responsiveness to external temperature fluctuations. These performance differences are attributed to variations in geometry, material mass, and thermal inertia. The results highlight the potential of 3D-printed TPMS-based walls as sustainable, climate-responsive envelope solutions for urban and tropical environments.