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Obtención de silicatos de calcio utilizando el método deprecipitación controlada

Authors: Rodríguez Páez, Jorge E.; Ahumada, L. M.; Bustamente, J. M.;

Obtención de silicatos de calcio utilizando el método deprecipitación controlada

Abstract

Los silicatos de calcio hidratados son compuestos del sistema SiO2 -CaO-H2 O. Estos materiales se utilizan para fabricar ladrillos de cal-arena, hormigones aireados (espumados) u “hormigón celular”, ladrillos de cal-flint, como material de relleno en las industrias de productos de caucho, pinturas y plásticos, entre otros posibles usos. Indudablemente el grupo de las tobermoritas es el más interesante debido a su papel importante en la hidratación del cemento: los silicatos tricálcico (3CaO. SiO2 -C3 S) y dicálcico (2CaO, SiO2 -C2 S) son los principales constituyentes del cemento Pórtland. En este trabajo se muestra la obtención de compuestos de silicato de calcio a través del método de precipitación controlada usando como fuente de silicio el dióxido de silicio, SiO2 obtenido de la cascarilla de arroz. Se analizan los fenómenos fisicoquímicos que ocurren durante el proceso de síntesis y se estudia la evolución de las fases cristalinas del producto obtenido, al ser sometido a tratamientos térmicos, utilizando para ello Difracción de Rayos X (DRX) y espectroscopía infrarroja (FTIR).

Peer reviewed

Keywords

Precipitación controlada, Silicatos de calcio

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selected citations
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This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
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popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
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