Environmental issues have become a topical subject in recent years. Numerous recycling resources can be
found in our living environment, such as fallen leaves, wood chips, recovered iron powder, waste
newspaper, waste concrete, reservoir silt, etc., which are utilizable waste materials. Related regulations
stipulate that the waste blending ratio of recycling green building materials should be higher than
50%. In this study, three waste materials, including wood chips, concrete, and waste newspaper, were
mixed with gypsum and dissolved in thermochromic material, which is made into bricks. The thermal
radiation of sunlight can be absorbed by the bricks to change the hue. The experimental modules were
divided into ABCD groups, which were mixed with allochroic powder of different specifications. The
RGB values of bricks at different temperatures and hours were measured by a color analyzer. The results
showed that the rate of change in the RGB values of the ABCD groups is higher than 10.9% when the day–
night temperature difference exceeds 5 C. These allochroic bricks can be applied to the external walls of
buildings, providing landscape, building, and interior designers with another media for artistic creation.