With normal eyesight, at what distances is it possible to see exposed aggregates in the surface of concrete?
The following table suggests maximum distances in feet for exposed aggregates of the several sizes, listed in inches: AGGREGATES (INCHES) DISTANCE (FEET) 1 1/2……………………….350 1.…………………………...300 3/4.……………………….200 1/2…………………………115 3/8..……..…………………..75 1/4…….…………………….60 More important than the distances are such factors as the color contrast between the hardened paste and the exposed aggregate, the lighting conditions and depth of texture.