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http://dx.doi.org/10.12814/jkgss.2019.18.4.243

Evaluation of Engineering Properties of Retaining Wall Material Using Fiber Reinforcement  

Lee, Jong-Ho (Boraeng, Co, Ltd)
Lee, Kang-Il (Dept. of Civil Engineering, Daejin University)
Yu, Nam-Jae (Korea Conformity Laboratories)
Kim, Yong-Seong (Department of Regional Infrastructure Engineering, Kangwon National University)
Publication Information
Journal of the Korean Geosynthetics Society / v.18, no.4, 2019 , pp. 243-252 More about this Journal
Abstract
Recently, as the utilization of underground space increases, the demand for underground excavation increases. In this study, the concrete mixture with a new material was used to develop and evaluate the stability of the CS-H wall that can greatly minimize the problems of existing wall and minimize the impact of ground depression and surrounding ground that may occur in the future for excavation of over 30 m deep in urban areas. The fiber reinforcement formulation of steel fibers, synthetic fibers, and glass fibers, along with fine aggregate parts of PS-ball and ferronickel, were mixed. The Mixture ratios were determined by conducting slump test compresive strength test, modulus of elastic test, flexural strength test, splitting tensile strength test and conductivity test. As a result of the test, the steel fiber mixture showed very good results compared to other reference values in all items, and it is considered to be the most suitable for the CS-H wall to be developed.
Keywords
Deep excavation; Reinforced earth wall; Precious Slag Ball; Ferronickel Slag; CS-H wall;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
1 ASTM D 5084 (2016), Standard Test Methods for Measurement of Hydraulic Conductivity of Saturated Porous Materials Using a Flexible Wall Permeameter, ASTM (American Society for Testing and Materials). (In United States of America)
2 Bang, J. W, Kwon, D. S, Lee, J. H. and Lee, S. O. (2019), "Evaluation of Concrete Properties Depending on Replacement Ratio of Ferronickel Slag Fine Aggregate", Korea Concrete Institute, Vol.31, No.1 pp.511-512.
3 Chang, D. I. and Chai, W. K., Son, Y. H. (1992), "Flexural Fatigue Bechavior of Steel Fiber Reinforced Concrete Structures", Magazine of the Korea Concrete Institute, pp.81-87.
4 Ecomaister (2012), PS Ball test report.
5 Hyoseok Co., Ltd. (2015), Ferronickel slag test report.
6 Korea Concrete Institute (2011), "Development of Concrete Construction Guidelines Using Ferronickel Slag Aggregate II".
7 Korea Conformity Laboratories (2008), "Development of Ready-mixed Shotcrete for the Economical Recycling of Industrial by-product and the Improvement of Construction Quality", pp.152-164.
8 Korea Conformity Laboratories, (2012), Study on Geotechnical Application of Ferro-Nickel-Slag, pp.10-12.
9 Korea Institute of Civil Engineering and Building Technology (2018), "Develpment of ground deformation minization method for deep and vertical excavation in urban area", pp.42-47.
10 Korean Design Standard (2016), KDS 14 20 01, pp.20-21.
11 KS F 2405 (2017), Standard test method for compressive strength of concrete, KSA(Korean Standards Association). (in Korean)
12 KS F 2408 (2016), Standard test method for flexural strength of concrete, KSA(Korean Standards Association). (in Korean)
13 KS F 2423 (2016), Standard Test Method for tensile splitting strength of concrete, KSA(Korean Standards Association). (in Korean)
14 KS F 2502 (2019), Standard test method for sieve analysis of fine and coarse aggregates, KSA (Korean Standards Association). (in Korean)
15 KS F 2504 (2014), Testing method for density and absorption of fine aggregate, KSA (Korean Standards Association). (in Korean)
16 KS F 2505 (2017), Standard test method for bulk density and solid contents in aggregates, KSA (Korean Standards Association). (in Korean)
17 KS F 2515 (2014), Standard test method for chloride content in aggregate, KSA (Korean Standards Association). (in Korean)
18 KS F 2527 (2018), Concrete aggregate, KSA (Korean Standards Association). (in Korean)
19 KS F 2566 (2014), Standard Test Method for flexural performance of fiber reinforced concrete Test, KSA (Korean Standards Association). (in Korean)
20 Kumkang Co., LTD (2017), Steel fiber test report.
21 Lee, S. H. (2010), A Study on the Development for Utilization of Ferro-Nickel Slag, Sunchon National University Master's thesis, pp.7-10.
22 Nippon Electric Glass Co., LTD (2001), ARG CHOPPED STRAND SPECIFICATION.
23 Yu, N. J., Lee, K. I. (2017), "Study on the Performance Evaluation of CS-H Wall composed of Steel Fiber", J. Korean Geosynthetics Society, Vol.16, No.2, pp.89-96.   DOI
24 Nycon Material Co., LTD. (2017), Fiber Reinforcement Test report.
25 Seo, D. M., Kim, Y. U., Kim, T. S., Kim, D. B., Choi, J. H. and Choi, S. J. (2016), "Evaluation of the Flowability and Strength of Mortar by Replacement ratio of Ferro-nickel slag sand", Korea Concrete Institute, Vol.28 No.1 pp.591-592.