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<p>In order to explore the influence of different activation methods on the durability of cement-ferro nickel slag composite mortar, the durability of the composite mortar was evaluated by measuring the performance indexes of the composite mortar in the environment of freeze-thaw cycle, accelerated carbonization, and chloride ion penetration. The results show that the mechanical activation and alkali activator improve the reactivity of the cementitious system, and the enhancement of the filling effect and the increase of the hydration products improve the compactness of the internal structure, which not only enhances its frost resistance, but also slows down the transmission rate of CO<sub>2</sub> in the accelerated carbonization environment and the ion penetration rate in the chloride ion erosion environment.</p>

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Durability of Cement-Ferronickel Slag Composite Mortar under Different Excitation Methods: Frost Resistance, Carbonation Resistance and Chloride Ion Permeability

  • 期刊论文

  • 发表日期：

    2026年5月26日

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  • Hongxia Qiao,
  • Yanning Song,
  • Qiong Feng,
  • Xiaoxia Sun,
  • Chao Wei,
  • Jianghua Zheng

摘要

In order to explore the influence of different activation methods on the durability of cement-ferro nickel slag composite mortar, the durability of the composite mortar was evaluated by measuring the performance indexes of the composite mortar in the environment of freeze-thaw cycle, accelerated carbonization, and chloride ion penetration. The results show that the mechanical activation and alkali activator improve the reactivity of the cementitious system, and the enhancement of the filling effect and the increase of the hydration products improve the compactness of the internal structure, which not only enhances its frost resistance, but also slows down the transmission rate of CO2 in the accelerated carbonization environment and the ion penetration rate in the chloride ion erosion environment.