To evaluate color change of concrete subjected to high temperature, we manufactured concrete samples and heated them to target temperatures of 100, 200, 300, 400, 500, 600, 700 and 800℃ in an electric oven and performed photo image analysis using photoshop computer software. The result of the study shows that color change using photo image analysis can be evaluated according to the different color coordinate.

• 이중원(신안산대학교 건축과 교수, 공학박사) | Lee, Joong Won
• 최광호(남서울대학교 건축공학과 교수, 공학박사) | Choi, Kwang Ho