Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Material and bond properties of ultra high performance fiber reinforced concrete with micro steel fibers
For investigating the effect of fiber content on the material and interfacial bond properties of ultra high performance fiber reinforced concrete (UHPFRC), four different volume ratios of micro steel fibers (Vf = 1%, 2%, 3%, and 4%) were used within an identical mortar matrix. Test results showed that 3% steel fiber by volume yielded the best performance in terms of compressive strength, elastic modulus, shrinkage behavior, and interfacial bond strength. These parameters improved as the fiber content was increased up to 3 vol.%. Flexural behaviors such as flexural strength, deflection, and crack mouth opening displacement at peak load had pseudo-linear relationships with the fiber content. Through inverse analysis, it was shown that fracture parameters including cohesive stress and fracture energy are significantly influenced by the fiber content: higher cohesive stress and fracture energy were achieved with higher fiber content. The analytical models for the ascending branch of bond stress-slip response suggested in the literature were considered for UHPFRC, and appropriate parameters were derived from the present test data.
Material and bond properties of ultra high performance fiber reinforced concrete with micro steel fibers
For investigating the effect of fiber content on the material and interfacial bond properties of ultra high performance fiber reinforced concrete (UHPFRC), four different volume ratios of micro steel fibers (Vf = 1%, 2%, 3%, and 4%) were used within an identical mortar matrix. Test results showed that 3% steel fiber by volume yielded the best performance in terms of compressive strength, elastic modulus, shrinkage behavior, and interfacial bond strength. These parameters improved as the fiber content was increased up to 3 vol.%. Flexural behaviors such as flexural strength, deflection, and crack mouth opening displacement at peak load had pseudo-linear relationships with the fiber content. Through inverse analysis, it was shown that fracture parameters including cohesive stress and fracture energy are significantly influenced by the fiber content: higher cohesive stress and fracture energy were achieved with higher fiber content. The analytical models for the ascending branch of bond stress-slip response suggested in the literature were considered for UHPFRC, and appropriate parameters were derived from the present test data.
Material and bond properties of ultra high performance fiber reinforced concrete with micro steel fibers
Yoo, Doo-Yeol (Autor:in) / Shin, Hyun-Oh (Autor:in) / Yang, Jun-Mo (Autor:in) / Yoon, Young-Soo (Autor:in)
Composites, Part B: Engineering ; 58 ; 122-133
2014
12 Seiten, 42 Quellen
Aufsatz (Zeitschrift)
Englisch
Faser , Bruch , Fasergehalt , Stahlfaser , Hochtemperaturfaser , bewehrter Beton , Bruchenergie , Ablenkung , Crack Opening Displacement , Druckfestigkeit , Verbundfestigkeit , Biegewechselfestigkeit , Spitzenlast (elektrisch) , Volumenkennzahl , Elastizitätsmodul , Spannungsabhängigkeit (mechanisch)
| British Library Online Contents | 2014
| British Library Online Contents | 2014
Fiber-reinforced concrete containing ultra high-strength micro steel fibers under active confinement
| British Library Online Contents | 2018
Ultra High Performance Concrete Reinforced with Short Steel and Carbon Fibers
| BASE | 2015