Experimental study of the mechanical properties of basalt fibre-reinforced concrete at elevated temperatures

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Lu, L
Han, F
Qin, Y
Wu, S
Yuan, G
Zhao, Q
Doh, JH
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2021
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Abstract

Generally, achieving a proper mixing ratio of basalt fibre in concrete can improve the mechanical properties of concrete and enhance its anti-corrosion ability. Although basalt fibre exhibits excellent resistance to high temperatures, the mechanical behaviour of basalt fibre-reinforced concrete (BFRC) exposed to high temperatures is still unclear. In addition to the basic compressive and tensile strength testing for ordinary concrete and BFRC, the core temperature, mass loss, mechanical properties and synergistic mechanism of basalt fibre and concrete matrix under different temperatures were evaluated. The results show that BFRC provides excellent thermal insulation and can mitigate the concrete spalling phenomenon. Therefore, using basalt fibre can effectively improve the mechanical properties of concrete exposed to high temperatures.

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European Journal of Environmental and Civil Engineering
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This is an Author's Accepted Manuscript of an article published in European Journal of Environmental and Civil Engineering, 16 Nov 2021, copyright Taylor & Francis, available online at: https://doi.org/10.1080/19648189.2021.2003253
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Civil engineering
Environmental sciences
Basalt fibre-reinforced
concrete
high temperature
mechanical properties
scanning electron microscope
CT scan
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Lu, L; Han, F; Qin, Y; Wu, S; Yuan, G; Zhao, Q; Doh, JH, Experimental study of the mechanical properties of basalt fibre-reinforced concrete at elevated temperatures, European Journal of Environmental and Civil Engineering, 2021.
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