Biochar in cementitious materials and 3D printing.

Currently, and for many years, there has been an ongoing dialogue regarding the concept of sustainability as one of the key elements for the development of humanity and the possibility of ensuring a livable future for subsequent generations, the search for a sustainable future is undertaken with the purpose of addressing the climate crisis we are currently facing. To achieve this, it is necessary to stabilize CO2 emissions and greenhouse gases, which in recent years have had a dramatic increase, bringing with them irreversible consequences for environmental systems. The field of architecture and construction is one of the most polluting sectors, with a significant impact on environmental problems, making it essential for innovative strategies in adaptation, mitigation, and maintenance to be implemented as a means to address the crisis. Based on this context, this thesis explores the implementation of biochar as a sustainable construction material, influenced by the principles of sustainable economics, extending the lifecycle of materials and reducing anthropogenic emissions. As a material recovered from waste in the production of biomass through the process of pyrolysis, biochar is emerging as one of the most influential supplies for an environmentally resilient future, with numerous applications. Specifically for the construction industry, biochar is applied in concrete as a replacement for cement and in cementitious composites as an aggregate and an additive for wood polypropylene composites and plasters, with the aim of reducing environmental footprints and enhancing the capacity to capture CO2 from the air. This experimental research makes a critical analysis applying a methodology of various elaboration of distinct formulations of mortar samples maintaining the change of 5% biochar to the cement content and varying the water cement ratios, additionally, 3D printing samples are going to be made as an application of new technologies. The different samples are going to be subjected to various mechanical tests to identify and study mechanical properties, including flexion and compression stresses. The research seeks to extend the scope of the advantages of biochar application as a performance-oriented material, offering profitable information for future implementations and research of biochar in Cementous materials and 3Dprinting.