Browse > Article
http://dx.doi.org/10.5345/JKIBC.2022.22.6.553

Effect of Repeated Wet/Dry Cycles of Salt Solution on Flexural Performance of Steel Fiber Reinforced Concrete  

Kim, Ji-Hyun (Multidisciplinary Infra-technoplogy Research Laboratory, Pukyong National University)
Choi, Yu-Jin (Architectural and Fire Protection Engineering, Pukyong National University)
Chung, Chul-Woo (Architectural and Fire Protection Engineering, Pukyong National University)
Publication Information
Journal of the Korea Institute of Building Construction / v.22, no.6, 2022 , pp. 553-564 More about this Journal
Abstract
Concrete is a representative composite material that shows excellent performance in the construction field. However, it is a brittle and nonhomogeneous material and exhibits weak behavior against bending and tensile forces. To compensate for such weakens, fiber reinforcement has been utilized, and steel fiber has been recognized as one of the best material for such purpose. However, steel fiber can seriously affect the durability of concrete exposed to the marine environment due to the corrosion caused by chlorine ions. This study intended to evaluate the mechanical performance of steel fiber reinforce concrete during and after repeated wet/dry cycles in salt solution. According to the experimental results, there was no reduction in the relative dynamic modulus of concrete during the repeated wet/dry cycles in salt solution for 37 weeks. Flexural strength was not decreased after completion of repeated wet/dry cycles in salt solution. There was no sign of corrosion in steel fibers after visual observation of fractured surface. However, the flexural toughness was decreased, and this is because about half of the concrete specimen showed failure before reaching the maximum displacement of 3 mm. Although repeated wet/dry cycles in salt solution did not cause cracks in concrete through corrosion of steel fibers, specific attention is required because it can reduce flexural toughness of steel fiber reinforced concrete.
Keywords
repeating wet/dry cycles; salt solution immersion; fiber reinforced concrete; flexural performance;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
1 ASTM C215, Standard Test Method for Fundamental Transverse, Longitudinal, and Torsional Resonant Frequencies of Concrete Specimens. PA: American Society for Testing and Materials; 2000.
2 KS F 2566, Standard test method for flexural performance of fiber reinforced concrete. Seoul (Korea): Korea Agency for Technology and Standards; 2000.
3 Nordtest method NT-BUILD 492, Concrete, mortar and cement-based repair materials: chloride migration coefficient from non-steady-state migration experiments. Denmark: Nordic Council of Ministers; 1999.
4 KS L 5201, Portland cement. Seoul (Korea): Korea Agency for Technology and Standards; 2021.
5 KS F 2567, Silica fume for use in concrete. Seoul (Korea): Korea Agency for Technology and Standards; 2003.
6 KS F 2563, Ground granulated blast - furnace slag for use in concrete. Seoul (Korea): Korea Agency for Technology and Standards; 2020.
7 ASTM C 39, Standard test method for compressive strength of cylindrical concrete specimens. PA: American Society for Testing and Materials; 2010.
8 ASTM C 1202, Standard Test Method for Electrical Indication of Concrete's Ability to Resist Chloride Ion Penetration. PA: American Society for Testing and Materials; 2000.
9 Xia DT, Xiang K, Zhou BR. Flexural toughness of hybrid fiber reinforced high-performance concrete under three-point bending. Applied Mechanics and Materials. 2013 Aug;357-360:1110-4. https://doi.org/10.4028/www.scientific.net/AMM.357-360.1110   DOI
10 Banthia N, Majdzadeh F, Wua J, Bindiganavile V. Fiber synergy in hybrid fiber reinforced concrete (HyFRC) in flexure and direct shear. Cement and Concrete Composites. 2014 Apr;48:91-7. https://doi.org/10.1016/j.cemconcomp.2013.10.018   DOI
11 Zollo RF. Fiber-reinforced concrete: an overview after 30 years of development. Cement and Concrete Composites. 1997; 19(2):107-22. https://doi.org/10.1016/S0958-9465(96)00046-7   DOI
12 Nataraja MC, Dhang N, Gupta AP. Stress-strain curves for steel-fiber reinforced concrete under compression. Cement and concrete composites. 1999 Dec;21(5-6):383-90. https://doi.org/10.1016/S0958-9465(99)00021-9   DOI
13 Kim HW, Lee CJ, Shon CS, Moon H, Chung CW. Mechanical performance and chloride ion penetration of polyolefin fiber reinforced concrete designed for shotcreting at marine environment. Journal of Structural Integrity and Maintenance. 2020 Feb;5(1):8-17. https://doi.org/10.1080/24705314.2019.1692164   DOI
14 Lee CJ, Salas Montoya A, Moon H, Kim HW, Chung CW. The influence of the hybridization of steel and polyolefin fiber on the mechanical properties of base concrete designed for marine shotcreting purposes. Applied Sciences. 2021 Oct;11(20):9456. https://doi.org/10.3390/app11209456   DOI
15 ASTM C 876, Standards Test Method for Half Cell Potentials of Reinforcing Steel in Concrete. PA: American Society for Testing and Materials; 1991.
16 ASTM G 59, Standards Test Method for Conducting Potentiodynamic Polarization Resistance Measurements. PA: American Society for Testing and Materials; 2020.
17 Faritov AT, Rozhdestvenskii YG, Yamshchikova SA, Minnikhanova ER, Tyusenkov AS. Improvement of the linear polarization resistance method for testing steel corrosion inhibitors. Russian Metallurgy(Metally). 2017 Feb;2016(11):1035-41. https://doi.org /10.1134/S0036029516110070   DOI
18 Ijsseling FP. Application of electrochemical methods of corrosion rate determination to systems involving corrosion product layers: part 1: linear polarization resistance measurement as an example of a simple method that can be performed with commercially available instruments. British Corrosion Journal. 1986;21(2):95-101. https://doi.org/10.1179/000705986798272316   DOI
19 ASTM G109, Standard Test Method for Determining the Effects of Chemical Admixtures on the Corrosion of Embeded Steel Reinforcement in Concrete Exposed to Chloride Environments. PA: American Society for Testing and Materials; 1995.