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http://dx.doi.org/10.4334/JKCI.2015.27.3.215

Structural Performance Evaluation of Steel Fiber-Reinforced Concrete Beams with Recycled Coarse Aggregates  

Shin, Jae-Lin (Dept. of Architectural Engineering, Kumoh National Institute of Technology)
Kim, Woo-Suk (Dept. of Architectural Engineering, Kumoh National Institute of Technology)
Baek, Seung-Min (Dept. of Architectural Engineering, Kumoh National Institute of Technology)
Kang, Thomas H.-K. (Dept. of Architecture and Architectural Engineering, Seoul National University)
Kwak, Yoon-Keun (Dept. of Architectural Engineering, Kumoh National Institute of Technology)
Publication Information
Journal of the Korea Concrete Institute / v.27, no.3, 2015 , pp. 215-227 More about this Journal
Abstract
In this study, twenty four steel-fiber reinforced concrete (SFRC) beams using recycled coarse aggregates (RCA) were manufactured to examine the shear behavior of SFRC and to determine the beams' ultimate shear strengths. The RCA replacement ratio was fixed at 30%. The variables studied in this investigation are: (1) shear span-to-depth ratios (a/d) of 2, 3 and 4; (2) longitudinal reinforcement ratio (${\rho}$) of 0.008 and 0.0127; and (3) steel fiber volume fractions ($V_f$) of 0, 0.5, 0.75 and 1%. Test results were analyzed and then compared with the findings and proposals of various other researchers. Based on the test results, the more steel fiber volume fraction is increased, the large crack resistance and shear strength are exhibited. Most of the experimental data is higher than the theoretical value. Therefore, steel-fiber reinforced concrete beams using recycled coarse aggregates are suggested to be applied for building structures.
Keywords
recycled coarse aggregate; construction waste; shear strength; shear span-to-depth ratio; steel fiber volume fraction;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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