| abstract |
(57) [Summary] [Problem] Regarding a precast concrete product and a method of manufacturing the concrete product for smoothing the casting surface of the precast concrete product, a plasterer lacking due to an increase in the production volume of the precast concrete product. It is an object of the present invention to provide a precast concrete product having excellent surface smoothness finish on a concrete casting surface by simplifying the surface finish, shortening the time, and saving labor, instead of ironing by the work. SOLUTION: The method is characterized in that an antifoaming agent is sprayed on an unsolidified concrete surface cast in a predetermined formwork, and then a self-leveling material slurry is poured. |