ANÁLISE DA SUBSTITUIÇÃO DO CAROÇO DE MACAÚBA COMO AGREGADO GRAÚDO NAS PROPRIEDADES MECÂNICAS E DURABILIDADE DE CONCRETOS ECOLÓGICO
ANÁLISE DA SUBSTITUIÇÃO DO CAROÇO DE MACAÚBA COMO AGREGADO GRAÚDO NAS PROPRIEDADES MECÂNICAS E DURABILIDADE DE CONCRETOS ECOLÓGICO
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DOI: https://doi.org/10.22533/at.ed.909122430101
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Palavras-chave: Agregado Graúdo; Caroço De Macaúba; Durabilidade; Sustentabilidade.
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Keywords: Large Aggregate; Macaúba Seed; Durability; Sustainability.
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Abstract: When coarse aggregates are extracted, they can be harmful to the environment. The manufacture of materials that have characteristics that combine sustainability and good performance is a major challenge for researchers. In this sense, the macaubeira appears, a palm found in the Brazilian cerrado, has a rigid structure and particularities that make it the object of this study, which aims to evaluate the mechanical behavior and durability of concrete made using this material as a partial replacement. to the natural aggregate. Therefore, composites will be produced with 10%, 15% and 20% macaúba seed contents to replace traditional aggregate, seeking to obtain a special concrete that presents characteristics similar to conventional concrete. To analyze the properties of the composite, tests were carried out to evaluate the specific mass of fine aggregates NBR NM 52 (ABNT, 2009) and coarse aggregates NBR NM 53 (ABNT, 2009), unit mass tests of aggregates NBR 16972 (ABNT, 2021) and particle size analysis NBR 7181 (ABNT, 2016). For the traces and analysis of the specimens, concrete consistency tests will be carried out in the fresh state by slumping the frustum cone NBR 16889 (ABNT, 2020), as well as the axial compression resistance NBR 5738 (ABNT, 2018) and the of tensile strength by diametral compression NBR 7222 (ABNT, 2011). With the 10% content, satisfactory performance results were achieved after 7 days, and it is expected to maintain this mechanical behavior also after 28 days of curing.
- Denise Cardoso Guimarães
- Adriano Luiz Roma Vasconcelos
- Ana Beatriz Maciel Nascimento
- Nillya Rocha da Silva
- Vinicios Rodrigues Brito