Abstract
This paper evaluates the surface finishing of concrete buildings due to the effect of ageing. The surface finishing is evaluated on the micro level of material and macro level of the building. It was found that on the level of material, concrete becoming dirty makes the beauty decrease. However the beauty can also increase due to uniform dirtiness. On the level of building, the gorgeous-modest factor represents the activity, has high correlation with the degree of dirtiness, and changes from “gorgeous” to “modest” with ageing. The rich-poor factor represents the total evaluations of facade, depends on the distribution of dirt and on shape of facade rather than on dirty degree.
