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http://dx.doi.org/10.5345/JKIBC.2013.13.5.465

Evaluation of Protective Performance of Fiber Reinforced Concrete T-Wall  

Lee, In-Cheol (Department of Architectural Engineering, Chungnam University)
Kim, Hong-Seop (Department of Architectural Engineering, Chungnam University)
Nam, Jeong-Soo (Graduate School of Engineering, Muroran Institute of Technology)
Kim, Suk-Bong (Division of Civil and Environmental Engineering, Korea Military Academy)
Kim, Gyu-Yong (Department of Architectural Engineering, Chungnam University)
Publication Information
Journal of the Korea Institute of Building Construction / v.13, no.5, 2013 , pp. 465-473 More about this Journal
Abstract
Concrete is an outstanding material in terms of its impact and blast resistance performance. However, there a limitation of concrete is its risk of collapse due to the brittle failure and spalling. Increasing the thickness of members was used as a method to enhance the protective performance of concrete, despite the resulting inefficient space. To solve this problem, different types of fiber reinforced concrete were developed. Recently, another type of fiber reinforced concrete is also being developed and applied as a material that offers protection against impacts and blasts by increasing the flexural toughness of concrete. In this study, the test was conducted to evaluate the impact resistance performance of fiber reinforced concrete and mortar according to impact of high-velocity projectile. A concrete T-wall was also tested to evaluate its protective performance from fragment by 155mm-thick artillery shell. The test results revealed that improving flexural strength through fiber reinforcement inhibited cracks and spalling of rear, and spalling of front by high-velocity impact. As such, it is expected to improve the protective performance of the T-wall and reduce the thickness of the member.
Keywords
protective wall(T-wall); protective performance; projectile; 155mm-thick artillery shell; fragment; spalling of rear;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
연도 인용수 순위
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