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
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