抄録
As for water tightness of cracked concrete, focusing on its surface roughness, we experimentally studied in the case of both variable crack width and constant one. As a result, we found that fractal dimension, which showed a strong correlation with the compressive strength as cracking, could be presumed from strength properties and be a parameter to evaluate the surface roughness. Moreover, it was shown that the factors of flow resistance, such as length of flow, area of flow, and surface roughness, had the most effect on causing much difference in the value of water permeability between an experimental value and a theoretical one.
