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http://dx.doi.org/10.14190/JRCR.2018.6.1.43

Feasibility Analysis of Rapid Quality Evaluation Method for Blast Furnace Slag Using Hydrometer  

Han, Cheon-Goo (Department of Architectural Engineering, Cheong-ju University)
Joo, Eun-Hui (Department of Architectural Engineering, Cheong-ju University)
Publication Information
Journal of the Korean Recycled Construction Resources Institute / v.6, no.1, 2018 , pp. 43-49 More about this Journal
Abstract
The aim of the research is to analyze the feasibility of rapid quality evaluation method for blast furnace slag using hydrometer based on the former research of the prediction method for concrete compressive strength using hydrometer. Using this method, it is expected to provide a new application for blast furnace slag quality evaluation easily and rapidly during the receiving inspection. According to the experimental results, the settling time period of hydrometer was delayed with increased fineness of blast furnace slag. By using the regression equation of y = 198 120 x - 193 936(R=0.9398) obtained from the correlation between density of suspension at three minutes and fineness, it was possible to evaluate the quality of blast furnace slag fineness rapidly. Therefore, for ready-mixed concrete receiving inspection, the suggested method can be used as a cheap, a simple, and a rapid inspection method.
Keywords
Blast furnace slag; Fineness; Hydrometer; Quality evaluation; Receiving inspection;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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1 Lee, J.J., Kim, M.S., Beak, C., Joo, E.H., Han, M.C., Han, C.G. (2016). "Analysis of a possible rapid assessment of blast-furnace slag fine particles with a liquid densimeter," Proceeding of the Architectural Institute of Korea, 36(2), 1005-1006 [in Korean].
2 Lee, J.J., Moon, B.R., Joo, E.H., Jo, M.K., Han, M.C., Han, C.G. (2016). "Quality evaluation of blast furnace slag of blaine by liquid densimeter," Proceeding of the Architectural Institute of Korea, 36(2), 1005-1006 [in Korean].
3 Lee, K.J. (2012). Current situation of manufacture and application of ground granulated blast-furnace slag, Journal of the Architectural Institute of Korea, 56(8), 22-28 [in Korean].
4 Han, C.G. (1988). Study on the Early Estimation of Concrete Strength, Ph.D Thesis, Chungnam National Univesity [in Korean].
5 Han, C.G., Song, H.H. (2017). Quality analysis of fly ash through correlation between density by hydrometer and test report, Journal of the Korea Institute of Building, 17(4), 305-312 [in Korean].   DOI
6 Joo, E.H., Moon, B.R., Baek, C., Lee, J.J., Han, M.C., Han, C.G. (2017). "Fineness estimation of blast-furnace slag powder by hydrometer testing," Proceeding of the Architectural Institute of Korea, 37(2), 811-812 [in Korean].
7 Korean Agency for Technology and Standards. (2014). KS F 2563 Ground Granulated Blast - Furnace Slag for Use in Concrete [in Korean].