Using biomaterials in architectural design: Exploring the upcycling potential of nutshells to be used as an elastomer material in floating floor system

In recent years, the field of architecture has witnessed a growing interest in sustainable design practices using biomaterials and living materials. This thesis investigates the untapped potential of walnut shells as a viable biomaterial and proposes their upcycling as waste material in architectural design. Walnut shells, often discarded as agricultural waste, have unique properties that make them an intriguing alternative for sustainable construction. Walnut shells can offer significant advantages in architectural applications by using their natural structural strength, thermal insulation properties and natural aesthetics. This thesis discusses the potential of combining walnut shells with other biomaterials to create composite materials with improved performance properties. Within the scope of the experiments, it is aimed to produce an elastomer biomaterial using a powder material obtained from walnut shells and use it in floating flooring system. While the aim is to produce a material that will absorb the vibration caused by sound and impact between the boards in floating floor construction, it is also aimed to emphasize the importance of increasing the use of more environmentally friendly and sustainable solutions in the construction sector with materials converted from waste. The results of the laboratory tests revealed that further experimental research is needed to improve the structure, elasticity and sound absorption properties of the material produced within the scope of this thesis study. This thesis also presents a discussion on the environmental and social benefits of using nut shells as biomaterials in architectural design. By repurposing this abundant waste source found in our country, architects and designers can contribute to reducing the environmental impact associated with traditional building materials, promote circular economy principles, and support local economies. KEYWORDS: Biomaterial, upcycling, nutshell, food waste, waste management.