Building material & construction lab.
About BMCL
Smart Construction Technology Center
Kim, H., Kim, G., Gucunski, N., Nam, J., & Jeon, J. (2015). Assessment of flexural toughness and impact resistance of bundle-type polyamide fiber-reinforced concrete. Composites Part B: Engineering, 78, 431-446. | |||||
작성자 | 관리자 | ||||
---|---|---|---|---|---|
조회수 | 133 | 등록일 | 2015.09.01 | ||
주저자 | Hong-Seop, Kim. | ||||
교신저자 | 042-821-7731 | ||||
공동저자 | Gyu-yong, Kim. Nenad Gucunski. Jeong-Soo, Nam. Joong-Kyu, Jeon | ||||
학술지명 | Composites Part B: Engineering, 78, 431-446. | ||||
AbstractThis study compares the fiber/matrix bonding strength and flexural properties of bundle-type polyamide fibers to those of hooked-end steel fibers. Their fracture behavior upon impact with a high-velocity projectile is also assessed in terms of penetration depth, crater diameter and rear-side scabbing. The results obtained demonstrate that the bundle-type polyamide fibers undergo fracture without fiber pullout because of the increased interfiber gap and specific surface area for bonding, but exhibit poorer flexural fracture behavior with a lower flexural strength and fracture energy when compared to hooked-end steel fibers. Yet despite this, concrete reinforced with bundle-type fibers is shown to more effectively suppress scabbing during high-velocity impact, which is attributed to a more efficacious dispersion of shock stress due to the increased number of individual fibers. |