DIRECT TENSILE BEHAVIOR OF CEMENTITIOUS BIOCOMPOSITES REINFORCED WITH FIBERS FROM THE AMAZONIAN REGION

• Autor(a) principal: Oliveira, Igor Roberto Cabral
• Data de Publicação: 2022
• Outros Autores: Pereira de Vasconcelos, Raimundo, de Almeida Melo Filho, João, Martins Toralles, Berenice
• Tipo de documento: Artigo
• Idioma: por
• Título da fonte: Repositório Institucional da UFSC
• Texto Completo: https://ojs.sites.ufsc.br/index.php/mixsustentavel/article/view/5518; https://repositorio.ufsc.br/handle/123456789/246732
• topic: Fibers; Natural; Properties; Composites; Mortar; Fibras; Naturais; Propriedades; Biocompósitos; Argamassa

In the trend of sustainability in civil construction, cement composites reinforced with natural lignocellulosic fibers bring economic and socio-environmental benefits. In this context, the objective of this research is to analyze the mechanical behavior under direct tension of continuous (long) unidirectional fibers of mallow (Urena lobata L.) and jute (Corchorus capsularis L.) in alternative fiber cement composites. Through the narrative method, the research was based on studies with cement composites with deformation-hardening behavior (SHCC), reinforced with natural lignocellulosic fibers in mortars modified with pozzolanic materials. For the development of biocomposites and guarantee of durability, it partially replaces Portland cement CP II F-32 with metakaolin, according to research by Silva et al. (2010) and Melo Filho (2012). The results indicate that the mallow and jute fiber biocomposites showed multiple cracking, with ultimate stresses of 10.34 MPa and 7.96 MPa, respectively. The feasibility of applying mallow and jute fibers in alternative cementitious biocomposites, for semi-structural and structural purposes, subject to direct traction, is concluded