Experimental study on the texture effect of building materials for architectural planning and design: Survey on the actual color of architectural concrete and the experiment of the color control

This is one of the approaches of the interdisciplinary research about design and engineering. For example, architectural concrete is widely used in Japan. It is important to control the color of the architectural concrete buildings on the viewpoint of the beauty of the townscape in recent years. In this paper, surface color properties of the actual buildings and the concrete test pieces were surveyed. The several test pieces were made by using some kind of materials and under different conditions. The colorimeter was used for the measurement of the surface color, and color values L∗, a∗, b∗of the exterior walls and the test pieces were cleared.