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Jeon, J. K., Kim, W., Kim, G. Y., & Jeon, C. K. (2016). Polyamide fiber reinforced shotcrete for tunnel application. Materials, 9(3), 163. | |||||
작성자 | 관리자 | ||||
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조회수 | 122 | 등록일 | 2016.03.05 | ||
주저자 | Joong-Kyu, Jeon. | ||||
교신저자 | 042-821-7731 | ||||
공동저자 | Woo-Seok, Kim. Gyu-Yong, Kim. Chan-Ki, Jeon. | ||||
학술지명 | Materials, 9(3), 163. | ||||
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.
DOI: 10.3390/ma9030163 |