Cálculo del transporte de cloruros en la pasta de cemento

Autores/as

  • A. Princigallo CTG. Italcementi Group. Bergamo

DOI:

https://doi.org/10.3989/mc.2012.02011

Palabras clave:

Difusión, propiedades de transporte, pasta de cemento, cloruros, modelación

Resumen


Se ha desarrollado un método para medir el coeficiente de difusión de los iones cloruro en la pasta de cemento, partiendo de una aplicación analítica de la segunda ley de Fick en un sistema de coordinadas cilíndrico. Este método, que es natural, demostró ser capaz de producir resultados de difusividad en tan solo un mes. Se consiguió reducir el tiempo de ensayo mediante el aprovechamiento de la tridimensionalidad del flujo desde el exterior al interior de la probeta. A fin de determinar la concentración de saturación, se sometieron las pastas de cemento Portland a una disolución de cloruros concentrada. Este método resultó ser útil en el estudio de los cambios del coeficiente de difusión de la pasta de cemento provocados por las reacciones de hidratación que tienen lugar en esta.

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Publicado

2012-06-30

Cómo citar

Princigallo, A. (2012). Cálculo del transporte de cloruros en la pasta de cemento. Materiales De Construcción, 62(306), 151–161. https://doi.org/10.3989/mc.2012.02011

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