This study outlines the development of the world's first concrete floor slab finishing robot, and reviews and evaluates its applicability at construction sites. To make it be of much practical use, we developed these robots in stages, beginning with a prototype, then "Mark 2", and finally producing an improved model. The final model, an improved "Mark 2" was used at construction sites and its performance was evaluated. The results were in near agreement to the goals set out prior to development. New robots based on the final model have been manufactured and commercialized now. These robots are being used at various construction sites.
