Uso de Escórias de aciarias (BSSF e BOF) na Fabricação de Concreto como Possível Solução Ambiental: Estudo de Caso com Rejeitos da CSP do Porto do Pecém no Ceará
DOI:
https://doi.org/10.26848/rbgf.v17.4.p2984-2990Keywords:
Environmental impacts, steel mill slag, environmental solutionsAbstract
O aumento da demanda de matéria prima pelas indústrias de construção e transformação, em particular pelo aço produzido a partir do minério de ferro, tem causado impactos ambientais negativos nas comunidades localizadas no entorno das indústrias siderúrgicas. Assim, este estudo validou a hipótese de que é possível usar o rejeito produzido e descartado nas siderúrgicas (escórias de aciarias) na indústria da construção civil. Neste contexto, foram realizados experimentos de fabricação de concreto a partir da substituição do material agregado (areia e cimento) pelas escórias de aciarias (BSFF e BOF) e testes técnicos (análise granulométrica, teste de campo magnético, de expansividade e de resistência axial) para a comprovação da qualidade do material produzido. Os resultados obtidos mostram que o uso dos rejeitos de minérios de ferro produzidos na Companhia Siderúrgica do Pecém (CSP) no Estado do Ceará apresenta potencial para a produção de concreto que podem se usados em pequenas e grandes construções (casas populares, mantas asfálticas, prédios e viadutos) e que isto pode auxiliar as ações mitigadores dos efeitos negativos produzidos pela poluição ambiental observada nas comunidades do entorno desta região, contribuindo para a diminuição dos impactos ambientais.
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References
Branco, V.T.F.C. (2004). Characterization of asphalt mixtures using steel slag as aggregate. Dissertation. PPG in Civil Engineering. 153p. UFRJ.
Bessa, S.A.L., Miranda, M.A., Arruda, E.A.M., Bezerra, A.C.D.S., Sacht, H.M. (2022). Production and evaluation of microconcrete with iron ore tailings for the manufacture of construction components. Matéria (Rio de Janeiro). 27(2), e13175. https://doi.org/10.1590/S1517707620220002.1375.
Cardoso, A.V.M., Dias, F. M. (2014). The use of steel slag to manufacture paving blocks. In: Proceedings of the XXI CBECIMAT. Cuiabá/MT.
Chen, Shih-Huang, Pramesthi, T.W., Paramitha, P.A., WU, Chia-Chen. (2017). Environmental Impact Assessment and Total Cost Analysis of BOF and BSSF Slag in Asphalt Concrete. Journal of Performance of Constructed Facilities, Volume 31, Issue 4. https://doi-org.ez76.periodicos.capes.gov.br/10.1061/(ASCE)CF.1943-5509.000102.
Costa, E.S., Costa, A.A. (2021). Study of pollutant transportation in the Pecém Industrial and Port Complex (CIPP), Ceará. Rev. bras. meteorol., 36(3), 615–624 (suppl). https://doi.org/10.1590/0102-77863630030.
De Paula Junior, W.R., Oliveira, C. A. S. (2022). Evaluation of the use of iron ore tailings in mortar formulation. Research, Society and Development, 11(4), e0211425954. DOI: http://dx.doi.org/10.33448/rsd-v11i4.25954.
Faria, R.A.F. (2007). Contribution to the study of mechanical properties and durability of concretes with electric steel slag (EAF) as coarse aggregate. Dissertation. PPG in Civil Engineering. 146p. UFG.
Jaskulski, F.M. (2022). Analysis of the mechanical behavior of iron ore tailings subjected to alkaline activation by the "One-Part" method. Dissertation. PPG in Civil Engineering. 146p. UFRGS.
Lemos, D.A.Q., Costa, A.O., Bernardo, D.C., Silva, N.S. (2023). The use of iron ore tailings as an alternative raw material in the production
of cement bricks. Altus Ciência, 17(17), 332-341.http://dx.doi.org/10.5281/zenodo.7884458.
Li, Chao, Chen, Zongwu, Wu, Shaopeng, Li, Bo, Xie, Jun, Xiao, Yue. (2017). Effects of steel slag fillers on the rheological properties of asphalt mastic. Construction & building materials (145), 383-391. http://dx.doi.org/10.1016/j.conbuildmat.2017.04.034.
Nascimento, D.W., Vieira, G.L., Teles, C., Feroni, R.C. (2023). Study on the influence of the addition of iron ore tailings on the properties of Portland cement concrete. Brazilian Journal of Production Engineering, 9(3), 47-57. https://doi.org/10.47456/bjpe.v9i3.41444.
Nogueira, H.C.N., Sousa, A.A.P., Paiva, W., Lima, G.G.C., Lima, A.R.M., Sousa, F.A. S.F. (2022). Bentonite incorporated with granite tailings applied in iron ore pelletizing. Research, Society and Development, 11(4), e16211427183. http://dx.doi.org/10.33448/rsd-v11i4.27183.
Paceco, R.F.R. (2017). Studies on the use of natural or modified LD steel slag as a partial substitute for cement or as an addition to clinker. Thesis. PPG in Civil Engineering. 297p. USP.
Santos, F.J. (2018). Environmental and health impacts on the communities surrounding the Pecém industrial and port complex: a study in the Parade settlement. Dissertation. PPG in Climatology. 94p. UECE.
Silva, M.G.B.D. (2022). Use of iron ore dam tailings and foliated quartzite waste as raw materials for road superstructure construction. TCC - Civil Engineering. 52p. UFOP.
Souza, T.V.P. (2016). Characterization of oxygen converter slag obtained in the BSSF process before and after hydrometallurgical treatment. Dissertation. PPG in Materials Science. UFC.
Polese, M.O. Carreiro, G.L., Silva, M.G. (2006). Microstructural characterization of steel mill slag. Matéria, Rio de Janeiro, 11(4), 444-454. https://doi.org/10.1590/S151770762006000400011.
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