Abstract
In order to evaluate the permeability of concrete structure, it is usual that total permeable water estimated from the sum of each route of permeability ought to be under the limitation of designed value. But it is practically difficult to estimate the water permeable route of concrete structure previously. Consequently, the authors tried to estimate the permeability of concrete structure, by means of searching the route of water permeable flow in the ideally crack-controlled concrete structure, testing each permeability of concrete cored specimen taken from the part of each water permeable flow supposed, and calculating total water permeability of structure from the sum of each permeability.
