Abstract
In recent years, many approaches toward harmonizing concrete construction with surrounding landscape are under investigation. Concrete always gives an impression of artificial objective because it has colorless and monotony. In order to make a favorable impression, the concept of landscape design that enables the concrete to make up as a new product is spreading over the field. This paper deals with the states and problems of pigmented concrete on coloring process and related matters from the viewpoint of color, which is one of important factors in landscape design.