CAJ | 학술논문

混凝土结构耐久性问题是当今世界普遍关注的问题。由于氯离子侵蚀，导致钢筋锈蚀，使结构发生早期破坏，丧失了结构的耐久性能，已成为实际工程中的重要问题。基于 Fick 第二定律，分别考虑表面氯离子浓度、温度、水灰比、初始氯离子含量，计算氯离子扩散。敏感性分析表明表面氯离子浓度、温度、水灰比对混凝土中氯离子扩散影响较大，初始氯离子含量影响较小。
혼응토결구내구성문제시당금세계보편관주적문제。유우록리자침식，도치강근수식，사결구발생조기파배，상실료결구적내구성능，이성위실제공정중적중요문제。기우 Fick 제이정률，분별고필표면록리자농도、온도、수회비、초시록리자함량，계산록리자확산。민감성분석표명표면록리자농도、온도、수회비대혼응토중록리자확산영향교대，초시록리자함량영향교소。
The sufficient attention may be paid attention to the durability of reinforced concrete structure all over the world at present .The concrete structures would be subjected to chloride ingress ,resulting in the corrosion of reinforcing bars ,inducing early deterioration and losing their durability ,and this is a main problem in engineering practices .Based on the second Fick’s law ,and taking into account the surface chloride concentration ,temperature ,water cement ratio , and initial chloride content ,the chloride ion diffusion is calculated and analyzed here .The sensitivity analysis shows that the influence factors of surface chloride concentration ,temperature ,water cement ratio of concrete are obvious ,and the influence of initial chloride content is weaker .