[vol. 2] NIKKO TECHNICAL REPORT 2025 NIKKO TECHNICAL REPORT 2025 NIKKO TECHNICAL REPORT 2024 NIKKO TECHNICAL REPORT 2023 [vol. 2] NIKKO TECHNICAL REPORT 2025 Evaluation of Decomposition Performance of Asphalt Odor Components by Direct Combustion and Catalytic Combustion(1,488 KB) Hideto HORAI Flow Control in a Twin-Shaft Forced Mixer through the Combined Optimization of Blade Shape Continuity, Inclination Angle, and Rotation Direction, and Its Effects on Ultra-High-Performance Concrete Production(1,242 KB) Takeshi KAGOTANI Consideration of the Effects of Polyvalent Cations in Mixing Water on the Fluidity of Concrete(852 KB) Yasuhiro SAKAMOTO et al. Energy Saving in a Thermal Remediation System for Oil-Contaminated Soil (Heat Recovery Using a Pre-drying unit and a Heat Exchanger)(1,869 KB) Masahiro KAMIO et al. An R&D Planning Method Integrating Science Fiction and the History of Technology— A Backcasting Approach Based on the Novel Tomorrow’s Asphalt(1,732 KB) Isumi KAKIMOTO NIKKO TECHNICAL REPORT 2025 Sand Drying Mechanism with Ambient Airflow (1.7 MB) Ryuhei HOSHIKA et al. Development of an Operation Support System for Emulating Veteran Operators’ Burner Operation in Asphalt Plants (1.1 MB) Takuma HAMABE A Sand Drying System Utilizing Latent Heat from Water Vapor Condensation in Exhaust Gases (1.6 MB) Hideto HORAI Effects of Mixing Conditions and Increased Aluminate Phase on Slump Flow in High-Strength Concrete (1.1 MB) Yasuhiro SAKAMOTO et al. Combustion of Thermally Decomposed Ammonia Gas Using a Hydrogen Burner for Asphalt Plants (2.0 MB) Hajime MUNAKATA et al. Development of Hydro H2eat (Hydro Heat): Utilization of Hydrogen Fuel in Hot-Air Heaters (2.7 MB) Shuma HASEGAWA et al. NIKKO TECHNICAL REPORT 2024 Effect on Slump Flow of High-Strength Concrete caused by Flock Formation during Dry-Mixing (1.7 MB) Yasuhiro SAKAMOTO et al. Development and Evolution of Soil improvement Materials, with Immobilizing Properties for Heavy Metals, Derived from Waste Gypsum Board (3.3 MB) Hideto HORAI A Study on Extension of the Transportation Time of Asphalt Mixture Using a Container (5.2 MB) Takahito TERAUCHI et al. DEVELOPMENT OF HYDROGEN BURNER-PhaseⅡ: Asphalt-Mixture Production Test- (711 KB) Shuma HASEGAWA et al. Development of a Rapid Cooling Kiln with Stable Operation in Anhydrous Gypsum Production Facility (2.8 MB) Akira YANAI al. NIKKO TECHNICAL REPORT 2023 Development of Energy-Saving Oil-Contaminated Soil Remediation Plant, Its Transition and Future Prospects (1.9 MB) Hideto HORAI Influence of Dry-Mixing on Mortar Flow for High Strength Concrete (507 KB) Yasuhiro SAKAMOTO et al. Development of Hydrogen Burner – Phase I – (896 KB) Yuuki KITANO et al. CO₂ Reduction in Asphalt Plants and Development of Ammonia Burner in Nikko Co., Ltd. (2) (616 KB) Shota TANAKA et al.