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HomeKey Engineering MaterialsKey Engineering Materials Vol. 631The Effects of Nanoparticles of Silica and Alumina...

The Effects of Nanoparticles of Silica and Alumina on Flow Ability and Compressive Strength of Cementitious Composites

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Abstract:

In this study the effects of adding silica and alumina nanoparticles on flow ability and compressive strength of cementitious composites based on Portland cement were investigated. In the first stage, the rheological behavior of different samples containing nanosilica, nanoalumina and polypropylene, polyvinyl alcohol and polyethylene fibers were evaluated. With increasing of nanoparticles in fresh samples, the slump flow diameter reduced. Fibers reduced the flow ability of the samples and viscosity increased. With increasing of the micro silica particles to cement ratio from 2/1 to 2/2, the slump flow diameter increased. By adding silica and alumina nanoparticles up to 3% and 2% respectively, the compressive strength increased and after decreased. Samples containing silica nanoparticles and fibers had the highest compressive strength.

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Bioceramics 26

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Periodical:

Key Engineering Materials (Volume 631)

Pages:

119-127

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.631.119

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Online since:

November 2014

Authors:

Alireza S. Khorasani, Hosein Nuranian, Amir A. Yuzbashi, Shahab Moghaddas, Majid Raz*, M. Tahriri

Keywords:

Alumina Nanoparticles, Compressive Strength, Engineered Cementitious Composite, Flow Ability, Silica

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© 2015 Trans Tech Publications Ltd. All Rights Reserved

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