Please use this identifier to cite or link to this item: http://www.repositorio.ufop.br/jspui/handle/123456789/12412
Title: Influence of grinding on the pozzolanic activity of granite residue.
Authors: Barbosa, Jairo Mendes
Carvalho, José Maria Franco de
Silva, Keoma Defáveri do Carmo e
Peixoto, Ricardo André Fiorotti
Silva, Guilherme Jorge Brigolini
Keywords: Supplementary cementitious materials
Issue Date: 2019
Citation: BARBOSA, J. M. et al. Influence of grinding on the pozzolanic activity of granite residue. REM - International Engineering Journal, Ouro Preto, v. 72, n. 3, p. 395-404, jul./set. 2019. Disponível em: <https://www.scielo.br/scielo.php?script=sci_arttext&pid=S2448-167X2019000400395&tlng=en>. Acesso em: 10 mar. 2020.
Abstract: This study explores the potential of the granite residue to be applied as a supplementary cementitious material. Furthermore, the efficiency of grinding methods in the improvement of the residue reactivity was also evaluated. The granite residue was collected in a facility located in Brazil and used as a Portland cement replacement with a substitution rate of 25% in mass. The residue was submitted to wet, dry and additive dry grinding methods, with several different times. The cement-based composites were characterized by quantitative X-Ray diffraction using the Rietveld's method, thermogravimetric analysis, and compressive strength. In conclusion, there was observed a higher efficiency of the wet grinding method, followed by an increase in compressive strength results as grinding time increased. Furthermore, the portlandite content was lower in the cement-based composite with granite residue, especially in the samples ground for 60, 120, and 180 minutes; a fact that summed up with other results for the pozzolanic potential of the granite residue.
URI: http://www.repositorio.ufop.br/handle/123456789/12412
metadata.dc.identifier.doi: https://doi.org/10.1590/0370-44672019720004
ISSN: 1807-0353
metadata.dc.rights.license: A REM - International Engineering Journal - autoriza o depósito de cópia de artigos dos professores e alunos da UFOP no Repositório Institucional da UFOP. Licença concedida mediante preenchimento de formulário online em 12 set. 2013.
Appears in Collections:DECIV - Artigos publicados em periódicos

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