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Chloride diffusion coefficient of recycled aggregate concrete under compressive loading

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Abstract

In this paper, it is aimed to study the effect of compressive loading on the chloride diffusion coefficient of recycled aggregate concrete. A compression loading setup was both designed and fabricated. And chloride diffusion coefficient of recycled aggregate concrete was tested by the rapid chloride ion migration method. It was found that the chloride diffusion coefficient presents a trend of firstly decreasing and then increasing as the compressive stress ratio increases. Chloride diffusion coefficient and compressive stress ratio show a good correlation for recycled aggregate concrete. Regression analysis on test data is made and the empirical formula between compressive stress ratio and chloride diffusion coefficient is put forward to forecast the chloride diffusion coefficient of recycled aggregate concrete under different compressive stress ratios.

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Acknowledgments

The work in this study was supported by the Fundamental Research Funds for the Central Universities and Foundation of Graduate Innovation Center in Nanjing University of Aeronautics and Astronautics (kfjj20150105).

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Authors and Affiliations

  1. Department of Civil Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing, 210016, China

    Wang Wenjian, Wu Jin, Wang Zhe, Wu Guanzheng & Yue Anyi

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  1. Wang Wenjian
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  2. Wu Jin
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  3. Wang Zhe
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  4. Wu Guanzheng
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  5. Yue Anyi
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Correspondence to Wang Wenjian.

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Wenjian, W., Jin, W., Zhe, W. et al. Chloride diffusion coefficient of recycled aggregate concrete under compressive loading. Mater Struct 49, 4729–4736 (2016). https://doi.org/10.1617/s11527-016-0820-x

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  • DOI: https://doi.org/10.1617/s11527-016-0820-x

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