The dosage of Dongfang Yuhong concrete interface treatment agent is 0.4-0.6 kg per square meter. The usage amount of Dongfang Yuhong's concrete interface treatment agent will vary according to different specific situations. The usage amount will be determined according to factors such as the roughness of the concrete surface and the purpose of treatment. The recommended dosage is 0.4-0.6 kg per square meter.