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To study the durability of concrete structures against chloride ions penetrations under subway environmental conditions, permeability performance tests were conducted on high-performance concrete using the conductivity method and corrosions method, respectively. The experimental results show that the additions of fly ash, slag, and other admixtures in high-performance concrete have a significant effect on resisting the infiltrations and diffusions of chloride ions into the concrete. Considering the long-term durability of chloride ions penetrations, high-performance concrete with dual additions of fly ash and slag has better durability improvement than single additions. The durability life of high-performance concrete in chloride ions resistance test is 3–4 times longer than that of ordinary concrete.

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Experimental Study on the Durability of High-performance Concrete Against Chloride Ions Penetrations

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  • 出版模式：

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  • 发表日期：

    2025年

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  • Tao Ge,
  • Chenxi Liu

摘要

To study the durability of concrete structures against chloride ions penetrations under subway environmental conditions, permeability performance tests were conducted on high-performance concrete using the conductivity method and corrosions method, respectively. The experimental results show that the additions of fly ash, slag, and other admixtures in high-performance concrete have a significant effect on resisting the infiltrations and diffusions of chloride ions into the concrete. Considering the long-term durability of chloride ions penetrations, high-performance concrete with dual additions of fly ash and slag has better durability improvement than single additions. The durability life of high-performance concrete in chloride ions resistance test is 3–4 times longer than that of ordinary concrete.