Properties of Cement Mortars Mixed with SiO2 and CaCO3 Nanoparticles

De Zhi Wang; Yin Yan Zhang; Yun Fang Meng

doi:10.4028/www.scientific.net/KEM.539.244

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Properties of Cement Mortars Mixed with SiO₂ and CaCO₃ Nanoparticles
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HomeKey Engineering MaterialsKey Engineering Materials Vol. 539Properties of Cement Mortars Mixed with SiO2 and...

Properties of Cement Mortars Mixed with SiO₂ and CaCO₃ Nanoparticles

Abstract:

Water requirement of normal consistency, setting time and soundness of cement pastes mixed with SiO₂ and CaCO₃ nanoparticle and the flexural strength and compressive strength of cement mortars mixed with SiO₂ and CaCO₃ nanoparticles were experimentally studied. Results indicated that the added nano-SiO₂ and nano-CaCO₃ with a mass account of 4.0 wt. % decreased the setting time and increased the water requirement of normal consistency, flexural strength and compressive strength. And these nanoscaled mineral admixtures did not have a negative impact on cement soundness. The optimal replacement levels of cement by SiO₂ and CaCO3 nanoparticles for producing cement mortar with improved strength were 2.0 and 4.0 wt.% respectively.

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Periodical:

Key Engineering Materials (Volume 539)

Pages:

244-248

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.539.244

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Online since:

January 2013

Authors:

De Zhi Wang, Yin Yan Zhang, Yun Fang Meng

Keywords:

Compressive Strength, Flexural Strength, Nano-CaCO₃, Nano-SiO₂

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