2001
DOI: 10.1590/s0366-69132001000400009
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Efeito da distribuição granulométrica na secagem de concretos refratários

Abstract: Este trabalho teve como objetivo investigar o efeito da distribuição granulométrica sobre parâmetros de permeabilidade, porosidade aparente e secagem de concretos refratários de alta alumina. Verificou-se a influência de ambas as distribuições discreta e acumulada, baseadas no modelo de empacotamento de Andreasen. Ensaios de permeabilidade ao ar à temperatura ambiente permitiram correlacionar os tipos de poros presentes no concreto com a facilidade de escoamento de fluidos. Ensaios de permeabilidade em tempera… Show more

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Cited by 5 publications
(3 citation statements)
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“…The thermal behavior of the coal waste was determined in an optical dilatometer (Expert System Solutions MISURA HSM ODHT 1600, Italy; 10 °C.min -1 in air) in order to determine the sintering temperature. Temperature and holding time for degassing the binder was defined from previous works [3,4,5]. Compositions were heat treated in a laboratory kiln (Jung, Brazil).…”
Section: Methodsmentioning
confidence: 99%
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“…The thermal behavior of the coal waste was determined in an optical dilatometer (Expert System Solutions MISURA HSM ODHT 1600, Italy; 10 °C.min -1 in air) in order to determine the sintering temperature. Temperature and holding time for degassing the binder was defined from previous works [3,4,5]. Compositions were heat treated in a laboratory kiln (Jung, Brazil).…”
Section: Methodsmentioning
confidence: 99%
“…The use of polymeric fibers can be a feasible alternative to obtain cheap porous ceramics. In fact, polymeric fibers have increased the permeability of refractory concretes [4,5].…”
Section: Introductionmentioning
confidence: 99%
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