This paper provides a summary of the “Recommendations for Mix Design and Construction of MechanicallyCompacting Flowable Concrete” published in Concrete Library No. 161 in 2023. These Recommendations consist of a manual assuming the use of two standard types of fresh concrete and specifies the approach to inspecting concrete construction based on performance regulation principles. Additionally, as test methods for evaluating the quality of fresh concrete, the existing JSCE Standard (JSCE-F701) has been revised, and a new test (JSCE-F702) has been established as a JSCE Standard.
Using biomimetics technology, which mimics the special properties acquired by organisms through the process of evolution to adapt to harsh environments, we have developed mass production technology for super water-repellent formwork. This technology is an adaptation of the lid technology used in the yogurt packaging industry. This paper explains the theory of super water repellency and the effects obtained by using super water-repellent formwork, and presents the composition of the coatings for super water-repellent formwork (undercoat, intermediate coat, primer layer, hydrophobic layer), the materials and formulations used in the coatings, and the coating (painting) and control methods at the plywood processing plant. Additionally, it describes the effects in terms of improved concrete surface quality and productivity in an actual case where super water-repellent formwork was applied to sloped surfaces.