Publicado

2010-07-01

COMPARATIVE ANALYSIS OF PERFORMANCE OF PORTLAND CEMENT BLENDED WITH NANOSILICA AND SILICA FUME

Palabras clave:

Nanoparticles, nanosilica, blended cement, physical properties of cement. (es)

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Autores/as

  • J. I TOBÓN Grupo del Cemento y Materiales de Construcción, Universidad Nacional de Colombia – Medellín.
  • O. J RESTREPO Grupo del Cemento y Materiales de Construcción, Universidad Nacional de Colombia – Medellín
  • J PAYÁ Instituto de Ciencia y Tecnología del Hormigón (ICITECH) – Universidad Politécnica de Valencia – España
In this paper some physical properties of Colombian Portland cement type III replaced with nanosilica in percentages of 1, 3, 5 and 10% were evaluated. Main determined properties were fluidity, normal consistency, setting times, heat of hydration and compressive strength on pastes and mortars. It was made also a comparative analysis with samples substituted with commercial silica fume in percentages of 5, 10 and 15%. Results showed that the nanosilica from 5% beginning to have a major positive influence on the mechanical strength of mortars and with a 10% of substitution improvements in compressive strength up to 120% with respect to the control sample for one day of curing can be achieved. For longer curing time the improvement is decreased slightly, with near 80%, remaining this improvement in strength after 28 days of curing.

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[1]
“COMPARATIVE ANALYSIS OF PERFORMANCE OF PORTLAND CEMENT BLENDED WITH NANOSILICA AND SILICA FUME”, DYNA, vol. 77, no. 163, pp. 37–46, Jul. 2010, Accessed: Sep. 03, 2026. [Online]. Available: https://revistas.unal.edu.co/index.php/dyna/article/view/25535