Study on Frost Resistance of Nano SiO2 Cement Concrete

Zheng Rong Zhao; Jie Kong; Hong Xia Yang

doi:10.4028/www.scientific.net/AMM.198-199.48

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 198-199Study on Frost Resistance of Nano SiO2 Cement...

Study on Frost Resistance of Nano SiO₂ Cement Concrete

Abstract:

According the test, this paper discussed the relationships among nano SiO₂ content of nano SiO₂ cement concrete ,air content, water-cement ratio and frost resistance property.Meanwhile, the relationship among the bubble parameter, structure of holes and the frost resistance is primarily discussed. The results show that the concrete mixed with some nano SiO₂, with the increase of impervious holes in hardened cement paste, compared with ordinary concrete,both the ability of freezing-thawing resisting and compression strength will have an improvement. What’s more, when mixed with the air-entraining agent, freezing-thawing cycles number will have an obvious increase.When water-cement ratio is 0.35-0.39, the ability of frost resisting is very high but when water-cement ratio is larger than 0.39, freezing-thawing resisting performance is substantial decline.

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Periodical:

Applied Mechanics and Materials (Volumes 198-199)

Pages:

48-51

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.198-199.48

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Online since:

September 2012

Authors:

Zheng Rong Zhao, Jie Kong, Hong Xia Yang

Keywords:

Air Content, Cement Concrete, Frost Resistance, Nano SiO₂ Content, Water-Cement Ratio

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