Ultrafine portland cement performance

C. Argiz; E. Reyes; A. Moragues

doi:10.3989/mc.2018.03317

Autores/as

C. Argiz Science and Technology of Building Materials. School of Civil Engineering, Technical University of Madrid https://orcid.org/0000-0003-4519-872X
E. Reyes Science and Technology of Building Materials. School of Civil Engineering, Technical University of Madrid https://orcid.org/0000-0002-1284-7335
A. Moragues Science and Technology of Building Materials. School of Civil Engineering, Technical University of Madrid https://orcid.org/0000-0001-7819-3066

DOI:

https://doi.org/10.3989/mc.2018.03317

Palabras clave:

Cemento Portland, Humo de sílice, Resistencia a compresión, Porosimetría de Hg, Análisis térmico

Resumen

La densidad de empaquetamiento del producto final se puede mejorar cuando se mezclan varios conglomerantes y adiciones de diferente finura. En este trabajo se estudiaron varias mezclas de cemento ultrafino y humo de sílice para optimizar las propiedades de los materiales de base cemento. Esta investigación se realizó con morteros fabricados con dos tipos de cemento (cemento Portland ultrafino y cemento Portland común) y dos tipos de humo de sílice con diferentes tamaños de partícula. Se seleccionaron dos porcentajes de sustitución de cemento Portland por humo de sílice (4% y 10%) que se mezclaron mecánicamente. Los resultados revelaron que la mezcla del humo de sílice más fino con el cemento grueso mejora las propiedades mecánicas y el refinamiento de la distribución del tamaño de poro a edades avanzadas. Esta mejora de resistencias y reducción del tamaño de poro era menor en el caso del cemento ultrafino con el humo de sílice.

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Citas

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