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

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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Main Authors: TOBÓN,J. I, RESTREPO,O. J, PAYÁ,J
Format: Digital revista
Language:English
Published: Universidad Nacional de Colombia 2010
Online Access:http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0012-73532010000300004
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spelling oai:scielo:S0012-735320100003000042011-07-06COMPARATIVE ANALYSIS OF PERFORMANCE OF PORTLAND CEMENT BLENDED WITH NANOSILICA AND SILICA FUMETOBÓN,J. IRESTREPO,O. JPAYÁ,J Nanoparticles nanosilica blended cement physical properties of cement 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.info:eu-repo/semantics/openAccessUniversidad Nacional de ColombiaDYNA v.77 n.163 20102010-09-01info:eu-repo/semantics/articletext/htmlhttp://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0012-73532010000300004en
institution SCIELO
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country Colombia
countrycode CO
component Revista
access En linea
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region America del Sur
libraryname SciELO
language English
format Digital
author TOBÓN,J. I
RESTREPO,O. J
PAYÁ,J
spellingShingle TOBÓN,J. I
RESTREPO,O. J
PAYÁ,J
COMPARATIVE ANALYSIS OF PERFORMANCE OF PORTLAND CEMENT BLENDED WITH NANOSILICA AND SILICA FUME
author_facet TOBÓN,J. I
RESTREPO,O. J
PAYÁ,J
author_sort TOBÓN,J. I
title COMPARATIVE ANALYSIS OF PERFORMANCE OF PORTLAND CEMENT BLENDED WITH NANOSILICA AND SILICA FUME
title_short COMPARATIVE ANALYSIS OF PERFORMANCE OF PORTLAND CEMENT BLENDED WITH NANOSILICA AND SILICA FUME
title_full COMPARATIVE ANALYSIS OF PERFORMANCE OF PORTLAND CEMENT BLENDED WITH NANOSILICA AND SILICA FUME
title_fullStr COMPARATIVE ANALYSIS OF PERFORMANCE OF PORTLAND CEMENT BLENDED WITH NANOSILICA AND SILICA FUME
title_full_unstemmed COMPARATIVE ANALYSIS OF PERFORMANCE OF PORTLAND CEMENT BLENDED WITH NANOSILICA AND SILICA FUME
title_sort comparative analysis of performance of portland cement blended with nanosilica and silica fume
description 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.
publisher Universidad Nacional de Colombia
publishDate 2010
url http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0012-73532010000300004
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