Use este identificador para citar ou linkar para este item:
http://www.repositorio.ufop.br/jspui/handle/123456789/12412
Título: | Influence of grinding on the pozzolanic activity of granite residue. |
Autor(es): | Barbosa, Jairo Mendes Carvalho, José Maria Franco de Silva, Keoma Defáveri do Carmo e Peixoto, Ricardo André Fiorotti Silva, Guilherme Jorge Brigolini |
Palavras-chave: | Supplementary cementitious materials |
Data do documento: | 2019 |
Referência: | 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. |
Resumo: | 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 |
DOI: | https://doi.org/10.1590/0370-44672019720004 |
ISSN: | 1807-0353 |
Licença: | 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. |
Aparece nas coleções: | DECIV - Artigos publicados em periódicos |
Arquivos associados a este item:
Arquivo | Descrição | Tamanho | Formato | |
---|---|---|---|---|
ARTIGO_InfluenceGrindingPozzolanic.pdf | 1,07 MB | Adobe PDF | Visualizar/Abrir |
Os itens no repositório estão protegidos por copyright, com todos os direitos reservados, salvo quando é indicado o contrário.