Street Furniture Design public seat concrete colorful by Qiu Liwei On the other hand, recovery of architectural waste is the big problem of environment protection. Public furniture of regenerative concrete expands the application scope of regenerative concrete. Shatter the architecture waste of concrete and prefabricate it into aggregate. Then proportion it to raw materials. Add colorful dyeing agent of certain proportion in concrete and stir it evenly by mixer, which improves the demonstrativeness of concrete furniture.