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Experimental research on chloride-induced service life of sturctures under loading capacity criterion

机译:氯化物诱导的氯化物诱导的装载能力标准使用寿命的实验研究

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The whole service life of reinforcement concrete structure under chloride environment was devided into two stages according to mechanism of degradation. Using diffusion test, content of chloride ion was tested to decide diffusion coefficient for different age and damped exponential of diffusion coefficient. Then, through using effective diffusion coeffient into solution of the Fick's Second Law, service life of the first stage was predicted. For corrosion propogation phase, loading test was carried out to construct relationship between loading capacity of corroded test model and accelerated corrosion time. When using this relationship to actual structure, we calculated the service life of the second stage. These methods and results can be considered as reference to eveluate service life of structure under the samilar environment.
机译:氯化物环境下的加固混凝土结构的整个使用寿命根据降解机制分为两个阶段。使用扩散试验,测试氯离子的含量,以确定不同年龄的扩散系数和扩散系数的阻尼指数。然后,通过使用有效的扩散系数进入Fick第二法的解决方案,预测了第一阶段的使用寿命。对于腐蚀筛选阶段,进行负载测试以构建腐蚀试验模型的负载能力与加速腐蚀时间之间的关系。使用这种关系与实际结构时,我们计算了第二阶段的使用寿命。这些方法和结果可以被视为参考族环境下结构的改变使用寿命。

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