Browse > Article
http://dx.doi.org/10.5345/JKIBC.2020.20.1.043

Evaluation of Ballistic Resistance Performance by Thickness and Proportion of Magnetic Aggregate of Concrete  

Lim, Cha-Yeon (Korea Military Academy)
Kim, Kuk-Joo (Korea Military Academy)
Roh, Jeong-Heon (ROKA Nuclear.WMD Protection Research Center)
Jang, Chang-Su (Korea Military Academy)
Park, Young-Jun (Korea Military Academy)
Publication Information
Journal of the Korea Institute of Building Construction / v.20, no.1, 2020 , pp. 43-51 More about this Journal
Abstract
The main purpose of protective facility for small military unit is to provide the protection of not all the weapons system but the near-miss bullet in Korean army. In particular about the small caliber bullets, especially KM80 in Korea, there were many studies that both of the experiential and structural design methods dose not reflect enough the military threat. For that reason, a new equation to calculate effective anti-piercing depths for RC slabs against small caliber bullets is proposed in earlier research with actual shooting test. But, the test only considers the strength of concrete without the thickness of concrete, types of aggregate, the angle of yaw of bullet, high-strength concrete, etc. Therefore, this study evaluated the ballistic resistance performance by thickness and proportion of magnetic aggregate of concrete. As a result, we identified two major statistical estimations that the error of piercing depth by the angle of yaw of bullet could be cancelled by barrage and the thickness and proportion of magnetic aggregate of concrete dose not effect on the protection ability of concrete structure.
Keywords
piercing depth; thickness of concrete; magnetic aggregate; correlation analysis;
Citations & Related Records
Times Cited By KSCI : 4  (Citation Analysis)
연도 인용수 순위
1 Kim SB, Oh KD, Baek SH, Lee JH, Park YJ, Baek JH. protection engineering. 2nd ed. Paju (Korea): Cheongmoongak; 2013. 612 p. Korean.
2 Kim SB, Kang YC, Lee JC, Baek SH, Park YJ. An assessment for anti-piercing designs of rc slabs against small caliber bullets. Journal of the Korea Institute of Military Science and Technology. 2007 Jun;10(2):69-75.
3 Shin SW. High strength-high performance concrete design. Seoul (Korea): Kimoondang; 2011. 341 p. Korean.
4 ROK - Army Headquarter. Stronghold and Protective Facility. Gyeryong (Korea): ROK - Army Headquater; 1998. 25 p. Korean.
5 Suh KS. Research on multi level protective facility for non-nuclear weapon. Seoul (Korea): Hwarang-dae Research Institute; 1885. 31 p. Korean.
6 Cho PG, Lee KI. Easy guns and ballistics. Seoul (Korea): Shinhwajunsangihoek; 2013. 50 p. Korean.
7 Dong Yang Engineering & Construction. Study for improving the protection ability of concrete structure. Seoul (Korea): Korea Military Academy; 2005. 45 p. Korean.
8 Schmidt WFH, Hoffman ES. 9000-psi concrete - why? why not?. Civil Engineeering-ASCE. 1975;45(5):52-5.
9 Yang WH, Ryu DW, Kim WJ, Park DC, Seo CH. An experimental study on early strength and drying shrinkage of high strength concrete using high volumes of ground granulated blast-furnace slag(GGBS). Journal of The Korea Institute of Building Construction. 2013 Aug 20;13(4):391-9. http://doi.org/10.5345/jkibc.2013.13.4.391   DOI
10 Min TB, Cho IS, Lee HS. Fundamental study on the strength development of cement paste using hardening accelerator and high-early-strength cement. Journal of The Korea Institute of Building Construction. 2013 Aug 20;13(4):407-15. https://doi.org/10.5345/jkibc.2013.13.4.407   DOI
11 Kim KH, Lee JS, Noh SK, Lee HI, Hwang YS, Han CG. Fundanuemtal characteristics of high performance cement mortar using pre-mix cement according to the combination of binders and the change of mixing hours. Autumn Annual Conference of Architectural Institute of Korea; 2008 Oct 24-25; Chonnam National University, Gwangju, Korea. Seoul (Korea): Architectural Institute; 2008. p. 459-62.
12 Kim KH, Hwang YS, Kim SS, Choi SY, Han MC, Han CG. The influence of the type of silica fume on the property of cement binder for ultra high strength. Spring Annual Conference of the Korea Institute of Building Construction, 2007 Apr 28; Konkuk University, Seoul, Korea. Seoul (Korea): The Korean Institute of Building Construction; 2007. p. 51-4.
13 Jin SR, Pei CC, Kim KH, Hwang YS, Kim SS, Han CG. Fluidity of the cement paste depending on pulverulent combination of pre-mix cement for high-strength concrete. Autumn Annual Conference of Korea Concrete Institute. 2007 Nov 3; Sungkyunkwan University, Suwon, Korea. Seoul (Korea): Korea Concrete Institute; 2007. p. 657-60.
14 Moon H, Kim JH, Lee JY, Chung CW. Evaluation of chloride attack resistibility of heavyweight concrete using copper slag and magnetite as aggregate. Journal of The Korea Institute of Building Construction. 2017 Dec 20;17(6):483-92. https://doi.org/10.5345/jkibc.2017.17.6.483   DOI
15 Oh JH, Mun YB, Lee JH, Choi HK, Choi S. Aggregate effects on ${\gamma}-ray$ shielding characteristic and compressive strength of concrete. Journal of Nuclear Fuel Cycle and Waste Technology. 2016 Dec 31;14(4):357-65. http://doi.org/10.7733/jnfcwt.2016.14.4.357   DOI
16 ACI Committee 304. Heavyweight Concrete : Measuring, Mixing, Transporting, and Placing (ACI 304.3R-96). Mi (USA): American Concrete Institute; 1996. 8 p.
17 Mun JS, Mun JH, Yang KH, Lee H. Effect of substituting normal-weight coarse aggregate on the workability and mechanical properties of heavyweight magnetite concrete. Journal of the Korea Concrete Institute. 2013 Aug 31;25(4):439-46. https://doi.org/10.4334/jkci.2013.25.4.439   DOI
18 Sung TJ, Basic Statistics. Seoul (Korea): Hakjisa; 2017. 598 p. Korean.