Bártolo, Helena Maria Coelho da Rocha Terreiro Galha da SilvaCraveiro, Flávio Gabriel da SilvaJoshi, Arpan2021-03-012022-12-282020-12-28http://hdl.handle.net/10400.8/5411The construction industry is one of the prime users of global resources and a major contributor to global environmental impacts. Moving to a clean, circular economy can facilitate the achievement of the European Green Deal objectives, such as minimum environmental impacts, net-zero CO2 emissions and zero waste. The digitalisation of the construction industry, also known as construction 4.0, is a recent trend in the construction sector. 3D printing technologies has been mainly used to create cementitious-based construction components. On the other hand, earth is an eco-friendly natural material, used as a construction material since ancient times, though the investigation of the physical and mechanical behaviour of earth-based composites for 3D printing has been limited. This research work main aim was the development of 3D printable fiber-reinforced earthbased composites. The physical properties and the rheology behaviour was investigated for different formulations of crude earth-based composites was investigated, as well its structural stability, to get a better understanding of its feasibility to be used as construction components. It is crucial to further investigate different formulations of earthen-based composites for extrusion-based technologies, optimizing its processing methods. A Life Cycle Assessment (LCA) of these crude earth-based composites must also be performed to investigate its environmental and economic performance regarding other material formulations.engRheologyEarthen-based compositesFlax fibers3D printingmaster thesis202654273