Effect of Curing Age on Chloride Diffusion Coefficient of Recycled Aggregate Concrete Subjected to Compressive Stresses

被引：0
|
作者：
Tang J. [1 ]
Wu J. [1 ]
Wang W. [1 ]
Wang Z. [1 ]
Wu G. [1 ]
机构：
[1] College of Aerospace Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing
来源：
Transactions of Nanjing University of Aeronautics and Astronautics | 2018年 / 35卷 / 02期
基金：
中国国家自然科学基金;
关键词：
Chloride diffusion coefficient; Compressive stress ratio; Curing age; Rapid chlorideion migration(RCM) method; Recycled aggregate concrete(RAC);
D O I：
10.16356/j.1005-1120.2018.02.326
中图分类号：
学科分类号：
摘要：
The effect of curing age on chloride diffusion coefficient of recycled aggregate concrete subjected to different compressive stresses was investigated. A compression loading setup was both designed and fabricated. The chloride diffusion coefficients of recycled aggregate concrete under compressive stresses were measured by the rapid chloride ion migration (RCM) method. The experimental results show that the chloride diffusion coefficients of recycled aggregate concrete (RAC) under different compressive stress ratios generally decrease with the increase of curing age. For RAC subjected to the same compressive stress ratios, the chloride diffusion coefficients approximately have power functions with curing ages and the relationship models are proposed. Moreover, the influence of curing age on chloride diffusion coefficient firstly decreases and then increases as the compressive stress ratio increases. © 2018, Editorial Department of Transactions of NUAA. All right reserved.
引用
收藏
页码：326 / 333
页数：7
相关论文
共 50 条
  • [31] Determination method and prediction model of fracture and strength of recycled aggregate concrete at different curing ages
    Chen, Shanshan
    Wang, Hao
    Guan, Junfeng
    Yao, Xianhua
    Li, Lielie
    CONSTRUCTION AND BUILDING MATERIALS, 2022, 343
  • [32] Influence of Binder Composition and Concrete Pore Structure on Chloride Diffusion Coefficient in Concrete
    黎鹏平
    苏达根
    Journal of Wuhan University of Technology(Materials Science), 2011, (01) : 160 - 164
  • [33] A holistic model for cement paste and concrete chloride diffusion coefficient
    Shafikhani, M.
    Chidiac, S. E.
    CEMENT AND CONCRETE RESEARCH, 2020, 133
  • [34] Experimental study on uniaxial compression mechanical properties of recycled concrete with silica fume considering the effect of curing age
    Bai, Weifeng
    Lu, Xiaofeng
    Guan, Junfeng
    Yuan, Chenyang
    CONSTRUCTION AND BUILDING MATERIALS, 2022, 350
  • [35] Seasonal Variation of Surface Chloride Ion Content and Chloride Diffusion Coefficient in a Concrete Dock
    Zhao, Yu-xi
    Chen, Can
    Gao, Xiang-jie
    Jin, Wei-liang
    ADVANCES IN STRUCTURAL ENGINEERING, 2013, 16 (02) : 395 - 403
  • [36] EVALUATING TIME DEPENDENT CHLORIDE DIFFUSION COEFFICIENT AND SURFACE CHLORIDE CONTENT FOR CONCRETE STRUCTURES
    Verma, Sanjeev Kumar
    Bhadauria, Sudhir Singh
    Akhtar, Saleem
    REVISTA ROMANA DE MATERIALE-ROMANIAN JOURNAL OF MATERIALS, 2013, 43 (04): : 373 - 376
  • [37] A time-variant model of chloride diffusion in prestressed concrete cylinder pipe (PCCP) considering the effects of curing age
    Hu, Yuquan
    Hu, Shaowei
    Li, Wenhao
    Wang, Xu
    CONSTRUCTION AND BUILDING MATERIALS, 2023, 368
  • [38] A numerical algorithm for evaluating the chloride diffusion coefficient of concrete with crushed aggregates
    Zheng, Jian-Jun
    Zhang, Jian
    Zhou, Xin-Zhu
    Song, Wen-Bing
    CONSTRUCTION AND BUILDING MATERIALS, 2018, 171 : 977 - 983
  • [39] Prediction of chloride diffusion coefficient of concrete under flexural cyclic load
    Van Mien, Tran
    Stitmannaithum, Boonchai
    Nawa, Toyoharu
    COMPUTERS AND CONCRETE, 2011, 8 (03) : 343 - 355
  • [40] Evolution of acoustic emission activity throughout fine recycled aggregate earth concrete under compressive tests
    Fardoun, Hassan
    Saliba, Jacqueline
    Saiyouri, Nadia
    THEORETICAL AND APPLIED FRACTURE MECHANICS, 2022, 119
12345