Mechanical characterization of composite traction incorporated with bamboo fibers and red mud/Caracterizacao mecanica de tracao de compositos incorporados com fibras de bambu e lama vermelha/Caracterizacion mecanica de traccion de compuestos incorporados con fibras de bambu y lodo rojo

Composite materials are emerging as promising alternatives in engineering, offering robust and versatile solutions for various applications. Notably, the incorporation of industrial waste and plant fibers is distinguished by its sustainability and mechanical strength, fostering the development of novel composites. This study aims to develop composites utilizing red mud and chemically treated bamboo fibers, with a focus on evaluating their tensile mechanical properties. The bamboo fibers were cut and extracted to lengths of 30 mm and subsequently treated with 5% NaOH. For specimen production, full matrix plates and hybrid composites were fabricated. The fiber mass fraction was maintained at 3%, while the red mud content varied among 10%, 20%, 30%, and 40%. Post-production, the composite plates were cut according to ASTM D-3039 standards for subsequent mechanical testing. The results demonstrated an approximate 20% increase in the tensile strength of the composites compared to the full matrix. The highest tensile strength was observed in the specimen containing 10% red mud and 3% bamboo fiber, achieving a tensile strength of 28.85 MPa. In conclusion, bauxite residue, combined with bamboo fiber, has proven to be viable raw materials for producing composite materials, significantly enhancing the mechanical strength of the full matrix with readily available and low-cost additives. Keywords: Manufacturing. Chemical Treatment. Bauxite Residue. Sustainability. Os compositos sao alternativas promissoras na engenharia, proporcionando materiais robustos e versateis para diversas aplicacoes. Notavelmente, o uso de residuos industriais e fibras vegetais destaca-se pela sustentabilidade e resistencia mecanica, impulsionando a producao de novos compositos. Este estudo visa desenvolver compositos com lama vermelha e fibras de bambu tratadas quimicamente, com o objetivo de avaliar suas propriedades mecanicas de tracao. As fibras de bambu foram cortadas e extraidas em comprimentos de 30 mm, e posteriormente tratadas quimicamente com NaOH a 5%. Para a producao dos corpos de prova (CPs), foram confeccionadas placas de matriz plena e compositos hibridos. A fracao massica das fibras foi de 3%, enquanto para a lama vermelha foi variada entre 10%, 20%, 30% e 40%. Apos a producao, as placas de compositos foram cortadas de acordo com a norma ASTM D3039 para, em seguida, serem realizados os ensaios mecanicos. Os resultados obtidos mostraram um aumento de cerca de 20% no limite de re