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http://dx.doi.org/10.11112/jksmi.2017.21.2.122

Capacity Evaluation of SFRC Beams Using Recycled Fine and Coarse Aggregates  

Lee, Hyun-Ho (Department of Architecture & Fire Service Administration, Dongyang University)
Publication Information
Journal of the Korea institute for structural maintenance and inspection / v.21, no.2, 2017 , pp. 122-129 More about this Journal
Abstract
The aim of this study is a large amount use of recycled aggregates. The considering recycled aggregates replacement ratio is 50% that of natural aggregates. In order to increase the shear capacity of beams, that may be weaken by use of recycled aggregates, steel fibers are reinforced. The main variables are steel fiber volume fractions such as 0%, 0.5%, 0.75% and 1.0%. After the test, it could confirm that the strength and deformation capacity of beams with the steel fiber content values of 0.5% and 0.75% are comprehensively enhanced compared to non reinforcement. After evaluating the shear strength by using shear strength equations of previous researches, it concluded that the strength equation of Oh et al. (2008) is able to predict the shear strength of SFRC beams on the safety side.
Keywords
Recycled coarse aggregate; Recycled fine aggregate; SFRC beams; Steel fiber; Volume fraction; Shear strength;
Citations & Related Records
Times Cited By KSCI : 7  (Citation Analysis)
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1 Shin, J. L., Kim, W. S., Baek, S. M., Kang, T. H. -K., and Kwak, Y. K. (2015), Structural Performance Evaluation of Steel Fiber-Reinforced Concrete Beams with Recycled Coarse Aggregates, Journal of the Korea Concrete Institute, 27(3), 215-227.   DOI
2 Shin, S. W., Oh, J. K. and Ghosh, S. K. (1994), Shear Behavior of Laboratory-Sized High-Strength Concrete Beams Reinforced with Bars and Steel Fibers, Fiber Reinforced Concrete Development and Innovations, ACI SP-142, 181-200.
3 Ashour, S. A., Hasanain, G. S., and Wafa, F. F.(1992), Shear Behavior of High-Strength Fiber Reinforced Concrete Beams, ACI Structural Journal, 89(2), 176-184.
4 Dinh, N. H., Choi, K. K. and Kim, H. S.(2016), Mechanical Properties and Modeling of Amorphous Metallic Fiber-Reinforced Concrete in Compression, Internal Journal of Concrete Structures and Materials, 10(2), 221-236.   DOI
5 Ha, G. J., Yi, D. R., and Ha, J. H. (2013), Evaluation of Structural Performance of RC Beams Retrofitted Steel Fiber consequential Replacement of Recycled Coarse Aggregate and Ground Granulated Blast Furnace Slag, Journal of the Korea Concrete Institute, 25(5), 477-484.   DOI
6 Kwak, Y. K, Eberhard, M. O., Kim, W. S., and Kim, J. (2002), Shear Strength of Steel Fiber-Reinforced Concrete Beams without Stirrups, ACI Structural Journal, 99(4), 530-538.
7 Lee, H. H. (2004), Evaluation of Shear Strength in SFRC Beam without Stirrups Considering Steel Fiber Strengthening Factor, Journal of the Korea Institute for Structural Maintenance Inspection, 8(2), 213-220.
8 Lee, H. H. (2015), Material Strength Evaluation of Recycled Coarse Aggregate by Replacement Ratio, Proceeding of the Korea sInstitute for Structural Maintenance Inspection, Korea Institute for Structural Maintenance Inspection, 19(2), 463-464.
9 Lee, H. H., and Hur, M. W. (2005), Shear Capacity Estimation of SFRC Members Considering Steel Fiber Strengthening Factor and Shear Reinforcement, Journal of the Architectural Institute of Korea Structure & Construction, 21(5), 35-42.
10 Lee, H. H. and Lee, T. W. (2016), Experimental Study on Mechanical Properties and Deformation Behaior of Concrete with Recycled Aggregates and Steel Fiber, Journal of the Korea Concrete Institute, 28(3), 357-363.   DOI
11 Oh, Y. H., and Kim, J. H.(2008), Estimation of Flexural and Shear Strength for Steel Fiber Reinforced Flexural Members without Shear Reinforcements, Journal of the Korea Concrete Institute, 20(2), 257-267.   DOI
12 Sherif, Y., Kareemi, H., Anaam, A., Amani, Z. and Hiba, I. (2015), Strength and Durability Evaluation of Recycled Aggregate Concrete, Internal Journal of Concrete Structures and Materials, 9(2), 219-239.   DOI