2011
DOI: 10.1007/s10717-011-9314-z
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Formation of the phase composition of unsintered refractory concretes in the operating temperature range of glassmaking equipment

Abstract: Comprehensive studies of the phase composition of refractory concrete compositions heat-treated in different temperature intervals, including the operating range of glassmaking equipment, have been performed. The characteristic changes of the phase composition of unsintered concretes during the transformative heat-treatment have been established; a new phase appears after sintering at 1000°C -calcium aluminosilicate 2CaO × Al 2 O 3 × SiO 2 , which attests to the interaction in the sample of calcium aluminates … Show more

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“…2 (a and b, respectively). Reflections characteristic of mullite 3Al 2 O 3 × 2SiO 2 , anorthite CaO × Al 2 O 3 × 2SiO 2 and quartz SiO 2 predominate in the x-ray diffraction pattern; hematite Fe 2 O 3 , grossite CaO × 2Al 2 O 3 , tridimite SiO 2 and gehlenite 2CaO × Al 2 O 3 × SiO 2 , which, according to [17], upon firing is formed as a result of the interaction in concrete of calcium aluminate with free silica.…”
Section: Study Methods and Resultsmentioning
confidence: 96%
“…2 (a and b, respectively). Reflections characteristic of mullite 3Al 2 O 3 × 2SiO 2 , anorthite CaO × Al 2 O 3 × 2SiO 2 and quartz SiO 2 predominate in the x-ray diffraction pattern; hematite Fe 2 O 3 , grossite CaO × 2Al 2 O 3 , tridimite SiO 2 and gehlenite 2CaO × Al 2 O 3 × SiO 2 , which, according to [17], upon firing is formed as a result of the interaction in concrete of calcium aluminate with free silica.…”
Section: Study Methods and Resultsmentioning
confidence: 96%