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The effect of nanosilica incorporation on the mechanical properties of concrete exposed to elevated temperature: a review

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Abstract

Exposing concrete to high temperatures leads to harmful effects in its mechanical and microstructural properties, and ultimately to total failure. In this sense, various types of waste materials are exploited not only to tackle serious environmental issues but also to enhance the thermal stability of concrete exposed to elevated temperatures. Furthermore, nanomaterials have been incorporated in concrete as admixtures to reduce the thermal degradation of concrete due to exposure to high temperatures. In the present study, the effects of nanosilica (NS) incorporation on the properties of concrete subjected to elevated temperature are discussed in several sequential sections. The process mechanism of concrete deterioration due to fire exposure and the important factors that could affect the performance of concrete under fire were evaluated. Moreover, brief highlights on the effect of elevated temperature on concrete containing waste materials are included in this review paper. Reviews and summaries of the available and updated literature regarding concrete containing NS are considered. According to the findings of the studies under review, the addition of nanosilica to concrete contributed in reduced strength loss, minimized internal porosity, and enhanced matrix compactness in concrete.

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Acknowledgements

The authors fully acknowledged the Ministry of Higher Education (MOHE) and Universiti Tun Hussein Onn Malaysia for the approved fund under the Fundamental Research Grant Scheme FRGS/1/2018/TK01/UTHM/02/3 in making this important research viable and effective.

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Authors

Contributions

Ibrahim Mohammed Nasser: conceptualization, data curation, formal analysis, resources, visualization, writing—original draft.

Mohd Haziman Wan Ibrahim: conceptualization, funding acquisition, project administration, supervision, validation, writing—review & editing.

Sharifah Salwa Binti Mohd Zuki: formal analysis, resources, funding acquisition, visualization, supervision.

Hassan Amer Algaifi: investigation, analysis, supervision, writing—original draft.

Abdullah Faisal Alshalif: investigation, analysis, data curation, review.

Corresponding authors

Correspondence to Ibrahim Mohammed Nasser, Mohd Haziman Wan Ibrahim or Hassan Amer Algaifi.

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The authors declare competing interests.

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Nasser, I.M., Ibrahim, M.H.W., Zuki, S.S.M. et al. The effect of nanosilica incorporation on the mechanical properties of concrete exposed to elevated temperature: a review. Environ Sci Pollut Res 29, 15318–15336 (2022). https://doi.org/10.1007/s11356-021-18310-8

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  • DOI: https://doi.org/10.1007/s11356-021-18310-8

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