Polyamide Fiber Reinforced Shotcrete for Tunnel Application
AbstractThis study intends to establish the mechanical properties of polyamide fiber reinforced shotcrete (PAFRS) in terms of compressive and flexural strengths, in accordance with ASTM C1609/C1609M-12. The mechanical properties identified the influence of polyamide fiber content on the PAFRS strength. This study evaluated the toughness of PAFRS and proposed additional toughness level criteria to better represent organic fiber performance. In addition, the fiber rebounding rate and PAFRS performance in tunneling application were evaluated based on a tunnel application in Korea. PAFRS with 0.6%~0.8% volume content in tunneling shotcrete could significantly improve flexural ductility, toughness, and ultimate load capacity. Fiber rebounding tests exhibited a low rebounding rate (8.5%) and low fiber drop (63.5%). Therefore, PAFRS applied to a tunnel exhibited stability and constructability. View Full-Text
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Jeon, J.K.; Kim, W.; Kim, G.Y.; Jeon, C.K. Polyamide Fiber Reinforced Shotcrete for Tunnel Application. Materials 2016, 9, 163.
Jeon JK, Kim W, Kim GY, Jeon CK. Polyamide Fiber Reinforced Shotcrete for Tunnel Application. Materials. 2016; 9(3):163.Chicago/Turabian Style
Jeon, Joong K.; Kim, WooSeok; Kim, Gyu Y.; Jeon, Chan K. 2016. "Polyamide Fiber Reinforced Shotcrete for Tunnel Application." Materials 9, no. 3: 163.
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