Use of electric arc furnace slag for producing concrete paving blocks

Autores

  • Carmenlucia Santos Giordano Penteado Universidade Estadual de Campinas - UNICAMP - Faculdade de Tecnologia
  • Beatriz Leão Evangelista University of Campinas
  • Gisleiva Cristina dos Santos Ferreira University of Campinas
  • Pedro Henrique Andrade Borges ArcelorMittal Brasil S/A
  • Rosa Cristina Cecche Lintz University of Campinas

Palavras-chave:

alternative materials, electric arc furnace slag, paving blocks

Resumo

In this study the electric arc furnace slag was used as coarse natural aggregate substitute in concrete paving blocks production. The concrete mixture was defined by using weight proportions in the ratio of 1:2:3:0.51 (cement:sand:coarse aggregate:water) in order to obtain a compressive strength of 35 MPa. Four groups of concrete were prepared: a reference recipe and three others with the slag replacing the natural aggregate in the proportions of 25%, 50% and 75%. The compressive strength was not influenced by the slag content; however, it was influenced by the curing age, as the sample with 75% of slag addition had its compressive strength increased by 13.5% from 7 to 56 days. Water absorption presented a slightly reduction with slag addition. The results of compressive strength and water absorption met the Brazilian technical requirements, making the paving blocks suitable for use in light vehicle traffic. The results obtained in this study highlight the influence of the production process in the final quality of the steel slag, and the need of stablishing technical and environmental requirements to guide and promote the safe use of electric arc furnace slag in concrete.

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Biografia do Autor

Carmenlucia Santos Giordano Penteado, Universidade Estadual de Campinas - UNICAMP - Faculdade de Tecnologia

Professora da Divisão de Tecnologia em Saneamento Ambiental, responsável pela disciplina de resíduos sólidos nos cursos de Engenharia Ambiental e Tecnologia em Controle Ambiental. Desenvolve pesquisas na área de gerenciamento de resíduos sólidos (principalmente resíduos sólidos urbanos, resíduos industriais, e de construção civil), avaliação de ciclo de vida aplicada ao gerenciamento de resíduos e incorporação de resíduos industriais em materiais de construção.

Beatriz Leão Evangelista, University of Campinas

Master in Technology at School of Technology

Gisleiva Cristina dos Santos Ferreira, University of Campinas

Associate Professor School of Technology

Pedro Henrique Andrade Borges, ArcelorMittal Brasil S/A

Environmental Engineer, Master Student at School of Technology

Rosa Cristina Cecche Lintz, University of Campinas

Associate Professor at School of Technology

Publicado

12.03.2019

Como Citar

PENTEADO, C. S. G.; EVANGELISTA, B. L.; FERREIRA, G. C. dos S.; BORGES, P. H. A.; LINTZ, R. C. C. Use of electric arc furnace slag for producing concrete paving blocks. Ambiente Construído, [S. l.], v. 19, n. 2, p. 21–32, 2019. Disponível em: https://seer.ufrgs.br/index.php/ambienteconstruido/article/view/78783. Acesso em: 28 mar. 2024.

Edição

Seção

Resíduo como Material para Construção