Relación óptima de los mineralizadores fluorita/yeso en la clinkerización del cemento Portland

Autores/as

  • J. I. Tobón Departamento de Materiales y Minerales. Universidad Nacional de Colombia
  • M. F. Díaz-Burbano I&D Materiales Cementos Argos S.A.
  • O. J. Restrepo-Baena Departamento de Materiales y Minerales. Universidad Nacional de Colombia

DOI:

https://doi.org/10.3989/mc.2016.05515

Palabras clave:

Mineralizadores, Fluorita, Yeso, Clinker, Clinkerización

Resumen


Este artículo presenta el efecto combinado de la fluorita y el yeso como mineralizadores. Se usó el diseño experimental estadístico Box-Behnken, a escala de laboratorio, para cuantificar el efecto de la fluorita en porcentajes de 0.00, 0.25, 0.50 y 0.75%; relaciones fluorita/yeso de 2/15, 1/3 y 8/15; con temperaturas de clinkerización de 1250, 1300 y 1350 °C y la cal libre como variable de respuesta. El clínker producido fue caracterizado midiendo el contenido de cal libre por el método de etileno, DRX, DSC y microscopía óptica. Se encontró un descenso de la cal libre del 81 y 56% en el clinker mineralizado en comparación con el clinker sin mineralizadores a 1300 y 1250 °C respectivamente. El análisis petrográfico mostró que la cantidad de alita en el clinker mineralizado a bajas temperaturas es más alta que en el clinker sin mineralizadores. La mejor condición se encontró para la relación fluorita/yeso de 2/15.

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Publicado

2016-06-30

Cómo citar

Tobón, J. I., Díaz-Burbano, M. F., & Restrepo-Baena, O. J. (2016). Relación óptima de los mineralizadores fluorita/yeso en la clinkerización del cemento Portland. Materiales De Construcción, 66(322), e086. https://doi.org/10.3989/mc.2016.05515

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