Effects sample size and view angle on relationship between sensory evaluation and quantitative evaluation by image analysis on uneven color concrete surface.

Abstract

In this study, It aims at construction of the quantitative quality control system in the finishing of concrete surface. In this paper, Effects of sample size and view angle on relationship between sensory evaluation and quantitative evaluation by image analysis on uneven color of concrete surface. Relation between an uneven color rate scale by sensory evaluation and a view angle showed high correlativity the same whole uneven coloring. When the view angle became narrow standard deviation showed the tendency to fall. On the other hand, when sample size became large. A tendency for standard deviation to become high was shown. The correlativity whose relation of the standard deviation of an uneven coloring rate scale and luminance is high was seen.