基于房室模型的氯离子在混凝土中的分布规律

为研究干湿循环作用下氯离子在混凝土中的分布规律，本文引入医用生物数学中的房室模型。该模型能动态地计算不同时间氯离子分别在混凝土对流区和扩散区的浓度。结合实际试验40 d、80 d、120 d和160 d的数据，用最小二乘法计算出该模型中相关系数的最小二乘解，进而可以得到该模型的解。模型解的形式并不复杂，便于在实际工程中推广应用。本文提供的模型为沿海工程海水干湿交替区域氯离子监测和耐久性设计提供参考。

Distribution of Chloride Transport in Concrete Based on the Compartment Model

In order to study the distribution of chloride transport in concrete under dry-wet cycling condition , the compartment model in medical biological mathematics is applied . This model can dynamically calculate the concentration of chloride in the convective region and the diffusion region of concrete under dry-wet cycling condition under different time .In conjunction with experimental data and least square method , parameters in the model can be acquired .And then , the consequence of model can be gained .The form of consequence is not too much complex so that it can be easily applied in practice engineering .The model mentioned in this article provides references to chloride monitoring and concrete durability design for coastal engineering .