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Comparative analysis of performance of portland cement blended with nanosilica and silica fume

TOBÓN, J. I and RESTREPO, O. J and PAYÁ, J (2011) Comparative analysis of performance of portland cement blended with nanosilica and silica fume. Dyna; Vol. 77, núm. 163 (2010); 37-46 DYNA; Vol. 77, núm. 163 (2010); 37-46 2346-2183 0012-7353 .

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URL oficial: http://revistas.unal.edu.co/index.php/dyna/article...

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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.

Tipo de documento:Artículo - Article
Información adicional:Derechos de autor reservados
Palabras clave:Nanoparticles, nanosilica, blended cement, physical properties of cement.
Unidad administrativa:Revistas electrónicas UN > Dyna
Código ID:27666
Enviado por : Dirección Nacional de Bibliotecas STECNICO
Enviado el día :27 Junio 2014 18:52
Ultima modificación:18 Agosto 2014 18:04
Ultima modificación:18 Agosto 2014 18:04
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