A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Development of High-Performance Fiber-Reinforced Cementitious Composite (HPFRCC) Using Titanium Dioxide and Nylon Fiber
This study attempted to develop high-performance fiber-reinforced cementitious composite (HPFRCC) achieving excellent mechanical properties and nitrogen oxide removal capacity by using photocatalyst and nylon fiber. Titanium dioxide, which has a particle size similar to those of materials typically used in cementitious composites, was utilized as a photocatalytic material. Two different types of titanium dioxide (NP-600 and GST) were used, and changes in microstructure and mechanical performance were observed by adjusting the mixing ratio and treatment methods. Analyses microstructure and chemical composition, nitrogen oxide removal tests, and mechanical tests were conducted sequentially, and the series of experimental processes were repeated if necessary. It was confirmed that an increase in the incorporating rate of titanium dioxide allows higher titanium component measured on the surface of the cementitious composite, which also had a positive effect on the improvement of nitrogen oxide removal capacity. However, an increase in titanium dioxide content negatively affected mechanical performance by reducing flow length and workability. Workability of composites decreases dramatically when titanium dioxide replaces silica flour by more than 80%, which caused problems in the mixing and depositing process. On the other hand, the superb mechanical performance could be achieved when the corresponding ratio was 75%. The incorporation of nylon fibers showed a similar effect to that of polymer fibers in terms of enhancing compressive strength and flexural strength. However, the nylon fiber did not provide sufficient ductility to the cementitious composite.
Development of High-Performance Fiber-Reinforced Cementitious Composite (HPFRCC) Using Titanium Dioxide and Nylon Fiber
This study attempted to develop high-performance fiber-reinforced cementitious composite (HPFRCC) achieving excellent mechanical properties and nitrogen oxide removal capacity by using photocatalyst and nylon fiber. Titanium dioxide, which has a particle size similar to those of materials typically used in cementitious composites, was utilized as a photocatalytic material. Two different types of titanium dioxide (NP-600 and GST) were used, and changes in microstructure and mechanical performance were observed by adjusting the mixing ratio and treatment methods. Analyses microstructure and chemical composition, nitrogen oxide removal tests, and mechanical tests were conducted sequentially, and the series of experimental processes were repeated if necessary. It was confirmed that an increase in the incorporating rate of titanium dioxide allows higher titanium component measured on the surface of the cementitious composite, which also had a positive effect on the improvement of nitrogen oxide removal capacity. However, an increase in titanium dioxide content negatively affected mechanical performance by reducing flow length and workability. Workability of composites decreases dramatically when titanium dioxide replaces silica flour by more than 80%, which caused problems in the mixing and depositing process. On the other hand, the superb mechanical performance could be achieved when the corresponding ratio was 75%. The incorporation of nylon fibers showed a similar effect to that of polymer fibers in terms of enhancing compressive strength and flexural strength. However, the nylon fiber did not provide sufficient ductility to the cementitious composite.
Development of High-Performance Fiber-Reinforced Cementitious Composite (HPFRCC) Using Titanium Dioxide and Nylon Fiber
RILEM Bookseries
Jędrzejewska, Agnieszka (editor) / Kanavaris, Fragkoulis (editor) / Azenha, Miguel (editor) / Benboudjema, Farid (editor) / Schlicke, Dirk (editor) / Choi, Hong-Joon (author) / Kim, Soonho (author) / Oh, Taekgeun (author) / Piao, Rongzhen (author) / Yoo, Doo-yeol (author)
International RILEM Conference on Synergising expertise towards sustainability and robustness of CBMs and concrete structures ; 2023 ; Milos Island, Greece
2023-06-09
12 pages
Article/Chapter (Book)
Electronic Resource
English
Ductile behavior of high performance fiber reinforced cementitious composite (HPFRCC) frames
| British Library Online Contents | 2016
Ductile behavior of high performance fiber reinforced cementitious composite (HPFRCC) frames
| British Library Online Contents | 2016
Ductile behavior of high performance fiber reinforced cementitious composite (HPFRCC) frames
| Online Contents | 2016
Ductile behavior of high performance fiber reinforced cementitious composite (HPFRCC) frames
| British Library Online Contents | 2016