期刊论文

Zheng, ZS;Huang, YJ

英文

Construction and Building Materials

0950-0618

2023

409

133886

10.1016/j.conbuildmat.2023.133886

CRediT authorship contribution statement Chen Zeng: Validation, Software, Investigation, Conceptualization, Methodology, Writing – original draft. Zhi-shan Zheng: Validation, Supervision, Software, Methodology, Conceptualization, Writing – original draft, Writing – review & editing. Hui Zhang: Visualization, Resources, Investigation, acquisition, Writing – review & editing. Yu-jie Huang: Supervision, Methodology, acquisition, Formal analysis, Writing – review & editing. Xiang Wang: Formal analysis, Resources, Software,

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This work proposes a novel numerical framework to investigate 3D chloride diffusion behavior in reinforced concrete (RC). An efficient dynamic modeling approach is developed to generate the RC models with real-shaped aggregates at mesoscale. A semi-closed form solution of Fick's second law is established to account for the time -varying chloride diffusion coefficient and surface chloride concentration through a genetic algorithm. Moreover, the effects of aggregate distribution and morphology on chloride diffusion are examined. The validated results demonstrate that the random distribution of a...