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Experimental Study of Hygrothermal and Ultraviolet Aging on the Flexural Performance of Epoxy Polymer Mortar

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Abstract

This paper studies the effects of hygrothermal environment at different temperatures and ultraviolet (UV) radiation on the bending properties of epoxy polymer mortar (EPM). The microstructure changes of EPM during aging were studied by scanning electron microscopy, and the bending properties of EPM were predicted by the Arrhenius law. The results showed that the bending properties of EPM were greatly affected by the temperature in the hygrothermal aging, but not evidently affected by ultraviolet radiation in UV aging. The prediction of Arrhenius model shows that the EPM will steadily retain 92.8%, 89.1% and 79.4% of the original flexural strength after long-term hygrothermal aging at \(40^{\circ }\)C, \(60^{\circ }\)C and \(80^{\circ }\)C, respectively.

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Acknowledgements

The study is financially supported by the National Natural Science Foundation of China (Grant Nos. 12072116, 11772132, 12072115, 11772131, 11772134, 11972162 and 11932007).

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Authors and Affiliations

  1. School of Civil Engineering and Transportation, State Key Laboratory of Subtropical Building Science, South China University of Technology, Guangzhou, 510640, China

    Xinhua Li, Dongpeng Ma, Zhaoming Lu, Yiping Liu, Zhenyu Jiang, Liqun Tang, Zejia Liu & Licheng Zhou

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  1. Xinhua Li
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  2. Dongpeng Ma
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Correspondence to Yiping Liu or Zhenyu Jiang.

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Li, X., Ma, D., Lu, Z. et al. Experimental Study of Hygrothermal and Ultraviolet Aging on the Flexural Performance of Epoxy Polymer Mortar. Acta Mech. Solida Sin. 34, 539–549 (2021). https://doi.org/10.1007/s10338-021-00234-y

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  • DOI: https://doi.org/10.1007/s10338-021-00234-y

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