• Journal of the Korean Recycled Construction Resources Institute
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• v.10 no.3
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• pp.285-292
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• 2022

The objective of this study is to investigate whether CGS generated in IGCC satisfies the fine aggregate quality items specified in KS F 2527(Concrete Aggregate) through the pretreatment process system and the quality improvement the system. The statistical significance of the pretreatment process was analyzed through Repeated Measurements ANOVA as measured values according to individually pretreatment process system. As a result of the analysis, In the case of CGS fine aggregate quality before and after the pretreatment process system, the density increased 5.2 %, the absorption rate decreased by 1.86 %, the 0.08 mm passing ratio decreased by 2.25 %, and Fineness Modulus and Particle-size Distribution were also found to be adjustable. It was found that the pretreatment process system was significant in improving the quality of CGS.

• Proceedings of the Korean Society of Precision Engineering Conference
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• 2007.11a
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• pp.305-306
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• 2007

• Magazine of RCR
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• v.4 no.3
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• pp.36-40
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• 2009

• Magazine of RCR
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• v.4 no.3
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• pp.41-44
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• 2009

• Proceedings of the Korean Environmental Sciences Society Conference
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• 2008.11a
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• pp.491-494
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• 2008

• Magazine of RCR
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• v.11 no.3
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• pp.29-31
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• 2016

• Electric Engineers Magazine
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• s.354
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• pp.42-43
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• 2012

2012년 1월 3일(화) 12:30 경, 경기도 이천시 마장면 ${\bigcirc}{\bigcirc}$군 이전공사 현장내의 골재 생산 작업장에서 전기실 제어반 내부의 리액터 교체작업 중 충전부(440 V)에 양손이 접촉되어 감전 사망한 사고임.

• Magazine of RCR
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• v.7 no.1
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• pp.26-30
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• 2012

• Magazine of RCR
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• v.14 no.1
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• pp.38-46
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• 2019

• Journal of the Korea Concrete Institute
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• v.15 no.1
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• pp.35-42
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• 2003

To use ferro copper slag as aggregate in the construction, an evaluation upon the two kinds of ferro copper slag being produced was conducted to determine the basic physical, and mechanical properties, chemical component and environmental noxiousness. As a result of experiment, it was found that two kinds of ferro copper slag satisfies the physical and mechanical properties of aggregate, prescribed in KS F 2526, and that in the result of noxious heavy metal eruption test by single bach extraction, no eruption of noxious heavy metal was detected or the eruption was far below the reference value. And mortar test was conducted by replacing sand of 25, 50, 75, 100% and the performance level was presented upon reviewing the fluidity property and variable aspects of unit weight. The increase of strength in accordance with replacement rate of sand was found to be the below than the equivalent level compared to the testing specimens that did not use ferro copper slag, but those of 25% replacement rate was above than 0%. Thus, two kinds of ferro copper slag, produced in the domestic, were found to be possessing the enough physical properties to use as concrete aggregate assuming that used with sand and in particular, it was reviewed to be advantageous in manufacturing concrete or mortar that requires weight.