Service Life Prediction of Concrete Structures in Chlorine Saline Soil Region Based on Monte-Carlo Method

In order to predict the service life of concrete structures in chlorine saline soil region, experimental research and numerical simulation were adopted to analyze the chloride ion diffusion characteristics in the concrete cover. Monte-Carlo method was used to simulate Fick′s second law and to assess the service life of concrete structures with different cover thicknesses. The results show that chloride ion diffusion in the concrete cover fairly well coincides with normal distribution. The concrete cover thickness has significant impact on the service life of concrete structures. Appropriate increasing the cover thickness can significantly improve the service life of concrete structures.