2014
DOI: 10.4067/s0718-50732014000200003
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Estudio de dos materiales volcánicos y efecto del tipo de molienda en su reactividad

Abstract: Resumen En este estudio se presenta la caracterización y evaluación de la actividad puzolánica de dos materiales volcánicos procedentes de dos depósitos volcánicos Colombianos (Volcán Puracé y Nevado del Tolima). Estos materiales fueron analizados mediante diversas técnicas de caracterización, la aptitud de los materiales volcánicos como puzolanas y el efecto de la molienda en su reactividad, se evaluó por medio del Índice de Actividad Puzolánica (IAP), ensayo de Frattini. Los resultados indican que el MVP pre… Show more

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Cited by 8 publications
(5 citation statements)
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“…The PVM comes from a region with a high circulation of sulfur-rich hydrothermal fluids, providing more of these compounds to the hydration reactions and therefore increasing the formation of ettringite at early curing ages. This analysis confirms the reports from Burgos et al (2014Burgos et al ( , 2015, who demonstrated that TVM is an inert material, that their fine particles act as micro-fillers that fill the pores between the cement particles causing better dispersion of cement grains and promotes the formation of hydration products very similar to the reference sample. In contrast, as a natural pozzolan, the PVM generates reactions that allow the formation of new hydration products.…”
Section: Resultssupporting
confidence: 90%
“…The PVM comes from a region with a high circulation of sulfur-rich hydrothermal fluids, providing more of these compounds to the hydration reactions and therefore increasing the formation of ettringite at early curing ages. This analysis confirms the reports from Burgos et al (2014Burgos et al ( , 2015, who demonstrated that TVM is an inert material, that their fine particles act as micro-fillers that fill the pores between the cement particles causing better dispersion of cement grains and promotes the formation of hydration products very similar to the reference sample. In contrast, as a natural pozzolan, the PVM generates reactions that allow the formation of new hydration products.…”
Section: Resultssupporting
confidence: 90%
“…En la tabla 1 se observan las propiedades químicas y físicas de algunas adiciones estudiadas en Colombia por el GMC, tales como la ceniza volante (FA), la escoria de carbón (E), el residuo de mampostería (RM), el material volcánico del Puracé (MVP), el material volcánico del Tolima (MVT), una caliza molida comercial (LP) y un lodo calcáreo (LC) proveniente de una industria productora de papel [37][38][39][40][41][42].…”
Section: -Caracterización De Adiciones De Colombia Para Cacunclassified
“…En la tabla 1 se observan las propiedades químicas y físicas de algunas adiciones estudiadas en Colombia por el GMC, tales como la ceniza volante (FA), la escoria de carbón (E), el residuo de mampostería (RM), el material volcánico del Puracé (MVP), el material volcánico del Tolima (MVT), una caliza molida comercial (LP) y un lodo calcáreo (LC) proveniente de una industria productora de papel [37][38][39][40][41][42].…”
Section: -Caracterización De Adiciones De Colombia Para Cacunclassified