Abstract
In recent years, There are reports that stagnation phenomenon of salt permeation in concrete which can’t be explained by Fick’s law. If salt stagnation phenomenon can be comprehended, it will be possible to rationalize durability design materially, however study case of cause of stagnation phenomenon is not enough. The purpose of this research is to disclose the predominant cause of stagnation phenomenon and for this purpose, salt water immersion test, pore structure test, water content test were done to two kinds arrangement concretes. As a result, it is disclosed that not only pore structure of concrete, but also water-retaining condition is important to stagnation of salt permeation.
