<abstract xmlns="http://www.w3.org/1999/xhtml"><p>Application of nano-materials in cement products significantly, improves their properties. Of course, the effectiveness of the materials depends on their quantity and the way they are introduced into the system. So far, amongst nano-materials used in construction, the most preferred was nano-silica. This research investigated the effect of synthetic precipitated nano-silica on the cement hydration as well as, on the physical and mechanical properties of pastes and mortars. Obtained results showed that admixture of nano-silica enhanced flexural and compressive strength of cement after 2 and 28 days, however, only when admixture made up 0.5% and 1.0%. On the other hand, the use of nano-silica in the amount 2% had some limitations, due to its ability to agglomerate, which resulted in deterioration of the rheological and mechanical properties.</p></abstract>

Application of nano-materials in cement products significantly, improves their properties. Of course, the effectiveness of the materials depends on their quantity and the way they are introduced into the system. So far, amongst nano-materials used in construction, the most preferred was nano-silica. This research investigated the effect of synthetic precipitated nano-silica on the cement hydration as well as, on the physical and mechanical properties of pastes and mortars. Obtained results showed that admixture of nano-silica enhanced flexural and compressive strength of cement after 2 and 28 days, however, only when admixture made up 0.5% and 1.0%. On the other hand, the use of nano-silica in the amount 2% had some limitations, due to its ability to agglomerate, which resulted in deterioration of the rheological and mechanical properties.

Peculiarities of hydration of Portland cement with synthetic nano-silica

Selected Scientific Papers - Journal of Civil Engineering

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

{"article-title":"Peculiarities of hydration of Portland cement with synthetic nano-silica"}

Application of nano-materials in cement products significantly, improves their properties. Of course, the effectiveness of the materials depends on their...

Peculiarities of hydration of Portland cement with synthetic nano-silica

Published Online: Dec 29, 2017

Page range: 101 - 106

DOI: https://doi.org/10.1515/sspjce-2017-0025

Keywords
nano-silica, Portland cement, hydration, calorimetric, paste, mortar, setting time, rate evolution of heat, flexural and compressive strength

© 2017 Galyna Kotsay, published by De Gruyter Open

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

Peculiarities of hydration of Portland cement with synthetic nano-silica

Published Online: Dec 29, 2017

Page range: 101 - 106

DOI: https://doi.org/10.1515/sspjce-2017-0025

Keywordsnano-silica, Portland cement, hydration, calorimetric, paste, mortar, setting time, rate evolution of heat, flexural and compressive strength

© 2017 Galyna Kotsay, published by De Gruyter Open

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

Keywords
nano-silica, Portland cement, hydration, calorimetric, paste, mortar, setting time, rate evolution of heat, flexural and compressive strength