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This poster discusses the computation of chloride profiles through concrete using analytical solution of Fick’s second law of diffusion. Chloride penetration in concrete is a matter of great concern in civil engineering. It costs billions of dollars to construction industry each year. Different computer models have been presented by the researchers all over the world to predict chloride concentration profiles in concrete. This work highlights the use of the models based on Fick’s second law of diffusion. These models are considered to be the simplest amongst all, in the sense that they require very little input data. The main disadvantage of these models is that they fail to address many complexities involved in the actual process. Nevertheless, the knowledge of the subject is important for the construction industry of Pakistan especially in areas where structures are subjected to chloride containing salts.