The influence of cement-based composite materials on the performance of bridges: Modification and optimization by nano-SiO2 material

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Abstract

Cement-based materials have been widely used in bridge construction. In order to further improve their performance, this study analyzed the modification and optimization functions of nano-SiO2 materials, designed test specimens with different content of nano-SiO2 and conducted experiments on their flow performance, compression resistance, bending resistance and impermeability. The results showed that the flow performance of the materials decreased and the impermeability decreased with the increase of nano-SiO2 content. The compressive strength and flexural strength are the best when the content of nano-SiO2 is 1%. On the whole, the best content of nano-SiO2 is 1%; when the content of nano-SiO2 is 1%, all the properties of the specimens are good, which is more conducive to the construction of bridges in various complex environments. The research in this paper has made some contributions to the further application of nano-SiO2 in the optimization of building materials, which is conducive to the better development of building materials.

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Zhu, C. (2020). The influence of cement-based composite materials on the performance of bridges: Modification and optimization by nano-SiO2 material. International Journal of Low-Carbon Technologies, 15(3), 409–413. https://doi.org/10.1093/IJLCT/CTAA012

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