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Environmentally friendly concrete block production: valorization of civil construction and chemical industry waste.
Junkes, Valderice H; Fuziki, Maria Eduarda K; Tusset, Angelo M; Rodrigues, Paulo Henrique; Lenzi, Giane G.
Afiliação
  • Junkes VH; Universidade Tecnológica Federal Do Paraná, Rua Doutor Washington Subtil Chueire, 330, Ponta Grossa, PR, 84017-220, Brazil.
  • Fuziki MEK; Universidade Tecnológica Federal Do Paraná, Rua Doutor Washington Subtil Chueire, 330, Ponta Grossa, PR, 84017-220, Brazil.
  • Tusset AM; Universidade Estadual de Maringá, Av. Colombo, 5790, Maringá, PR, 87020-900, Brazil.
  • Rodrigues PH; Universidade Tecnológica Federal Do Paraná, Rua Doutor Washington Subtil Chueire, 330, Ponta Grossa, PR, 84017-220, Brazil.
  • Lenzi GG; Centro Universitário Integrado, Av. Irmãos Pereira, 670, Campo Mourão, Paraná, CEP: 87301-010, Brazil.
Environ Sci Pollut Res Int ; 31(12): 17788-17803, 2024 Mar.
Article em En | MEDLINE | ID: mdl-38177647
ABSTRACT
In the present work, a study was carried out on the dosage of wastes from the chemical industry (tannery sludge) and civil construction (concrete and plaster) in mixtures used in concrete blocks' production. The objective was the application of these blocks in paving. The characterization of the materials used was performed employing X-ray diffractometry (XRD), scanning electron microscopy (SEM), and energy-dispersive X-ray spectroscopy (EDS). The effect of the different residues on the blocks' properties was evaluated through compressive strength, flexion-traction, water absorption, abrasion resistance, and leaching tests. The results indicated that the concrete paving blocks produced with the addition of residues did not obtain gains in the values of mechanical resistance to compression and traction in bending compared to blocks made with standard raw material. However, the blocks produced with construction waste presented satisfactory results for application in street paving after 7 days of concrete curing, reaching values between 36.54 and 44.6 MPa for the mentioned properties. These values also increased to 21.4% within 28 days of curing. The blocks produced with plaster showed values between 37.03 and 39.85 MPa after 28 days of curing, allowing their use for street paving. On the other hand, the blocks containing residues from the chemical industry had lower strengths, reaching a maximum of 29.36 MPa after 28 days of curing. In addition, it was also noted that the blocks produced with recycled concrete showed an improvement in performance for a composition of 50% recycled material.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Materiais de Construção / Resíduos Industriais Idioma: En Revista: Environ Sci Pollut Res Int Assunto da revista: SAUDE AMBIENTAL / TOXICOLOGIA Ano de publicação: 2024 Tipo de documento: Article País de afiliação: Brasil País de publicação: Alemanha
Texto completo
Adicionar na Minha BVS
Imprimir
XML
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Materiais de Construção / Resíduos Industriais Idioma: En Revista: Environ Sci Pollut Res Int Assunto da revista: SAUDE AMBIENTAL / TOXICOLOGIA Ano de publicação: 2024 Tipo de documento: Article País de afiliação: Brasil País de publicação: Alemanha