콘크리트용 골재로서 실리콘 망간슬래그의 물리적 적합성 평가

정의인 ( Ui In Jung ),김봉주 ( Bong Joo Kim ),김진만 ( Jin Man Kim ) 한국건축시공학회 2015 한국건축시공학회 학술발표대회 논문집 Vol.15 No.2

The concrete aggregate generates carbon dioxide in production but its demanding is gradually increased in accordance with the depletion of natural resources. Therefore we evaluated compatibility and basic physical properties of Silicon manganese slag generated in iron production as an applicable concrete aggregate. In our test, the silicon maganese slag shows 2.8g/㎤ of density in 10mm of maximum particle size similar to a natural aggregate, and its absorption rate was 0.3% similar to the electric furnace slag. Unit volume weight and ratio of absolute volume was respectively 2,001㎏/㎥ and 51%. Strength properties of Silicon manganese slag will be evaluated with further studies and experiments.

굴 패각을 채움재로 사용한 모르타르의 내화성능에 관한 연구

정의인 ( Jung Ui-in ),홍상훈 ( Hong Sang-hun ),김봉주 ( Kim Bong-joo ) 한국건축시공학회 2017 한국건축시공학회 학술발표대회 논문집 Vol.17 No.1

Oyster shell is produce by shucking process in oyster farming in southern coast of Korea. In average, about 6.7kg of oyster shell is produced as an industrial waste for 1kg of oyster flesh, and even only in last year, it is estimated that about 150,000 ton of oyster shell is produced. Oyster shell is light weighted and the strength characteristic of it is similar to send. So we produced mortar test piece using grounded oyster shell powder according to Filler and reviewed Fireproof Performance.

분급된 굴 패각을 잔골재로 사용한 모르타르의 강도특성에 관한 연구

정의인 ( Jung Ui-in ),홍상훈 ( Hong Sang-hun ),최인권 ( Choi In-kwon ),김봉주 ( Kim Bong-joo ),원철희 ( Won Chul-hee ),박정훈 ( Park Jung-hun ) 한국건축시공학회 2016 한국건축시공학회 학술발표대회 논문집 Vol.16 No.2

Oyster shell is produced by shucking process in oyster farming in southern coast of Korea. In average, about 6.7kg of oyster shell is produced as an industrial waste for 1kg of oyster flesh, and even only in last year, it is estimated that about 150,000 ton of oyster shell is produced. Oyster shell is light weighted and its strength characteristic is similar to sand. So we produced mortar test piece using grounded oyster shell powder under 0.6mm, 0.6~1.2mm, 1.2~2.5mm, 2.5~5.0mm of its particle size according to fine aggregate standard and reviewed strength Properties.

굴 패각을 잔골재로 사용한 모르타르의 질량비 변화에 따른 강도특성에 관한 연구

정의인 ( Jung Ui-in ),유남규 ( Yu Nam-gyu ),홍상훈 ( Hong Sang-hun ),김봉주 ( Kim Bong-joo ),원철희 ( Won Chul-hee ),최호림 ( Choi Ho-rim ) 한국건축시공학회 2016 한국건축시공학회 학술발표대회 논문집 Vol.16 No.2

Oyster shell is produced by shucking process in oyster farming in southern coast of Korea. In average, about 6.7kg of oyster shell is produced as an industrial waste for 1kg of oyster flesh, and even only in last year, it is estimated that about 150,000 ton of oyster shell is produced. Oyster shell is light weighted and the strength characteristic of it is similar to sand. So we produced mortar test using different law of multiple proportions of grounded oyster shell powder of its particle size according to fine aggregate standard and reviewed strength Properties.

커터 밀 인버터의 속도변화에 따른 굴 패각의 입도분포에 관한 연구

정의인 ( Jung Ui-in ),허민회 ( Heo Min-hoe ),유남규 ( Yu Nam-gyu ),김봉주 ( Kim Bong-joo ),원철희 ( Won Chul-hee ),박정훈 ( Park Jung-hun ) 한국건축시공학회 2016 한국건축시공학회 학술발표대회 논문집 Vol.16 No.2

Oyster shell is light weighted and its strength characteristic is similar to sand so we have reviewed to find its suitability of aggregate. Therefore we found fineness modulus and size distribution of oyster shell by grinding it with inverter cutter mill varying inverter speed and screening size. In our test, the fineness modulus has tendency of decrease in higher speed and tendency of increase in bigger diameter of screening size. 5∼2.5㎜, 2.5∼1.2㎜, 1.2∼0.6㎜, and below 0.6㎜ of oyster shell particle size could be used in further test for suitability of aggregate.

굴 패각을 채움재로 사용한 모르타르의 섬유 혼입에 따른 강도특성에 관한 연구

정의인 ( Jung Ui-in ),홍상훈 ( Hong Sang-hun ),유남규 ( You Nam-gyu ),김봉주 ( Kim Bong-joo ) 한국건축시공학회 2017 한국건축시공학회 학술발표대회 논문집 Vol.17 No.2

Oyster shell is produce by shucking process in oyster farming in southern coast of Korea. In average, about 6.7kg of oyster shell is produced as an industrial waste for 1kg of oyster flesh, and even only in last year, it is estimated that about 150,000ton of oyster shell is produced. Oyster shell is light weighted and the strength characteristic of it is similar to send. We produced mortar test piece using grounded oyster shell powder according to Filler and Fiber. So I wanted to measure the strength and use it as a baseline for follow-up studies.

HILS 시계열 데이터 이미지 변환을 이용한 CNN 기반 자동화 검증에 대한 연구

정의인(Ui-in Jung),김두기(Doogie Kim),백승빈(Seungbin Baek),황지은(Jieun Hwang),김범섭(Beomseop Kim) 한국자동차공학회 2023 한국자동차공학회 학술대회 및 전시회 Vol.2023 No.11

In this paper, we propose a framework of automated validation for HILS test data that is time dependent based on CNN using image encoding. Recently, electric vehicles and automated driving technologies have developed and ECU in vehicles is more complex. As a result, validation of ECU in vehicles is becoming important. HILS can reduce time and resources for test and validation of ECU. But amount of test is increased rapidly. To solve these problem, automated validation for HILS test data is studying. But it is difficult to find that consider the time dependent characteristics of time series data. In the study, image encoding used on other engineering field is applied to convert multivariate HILS data to image and introduce framework of automated validation for HILS test data based on CNN through validation performance about MDPS HILS data.

굴 패각을 골재로 사용한 모르타르의 강도특성에 관한 연구

정의인 ( Ui In Jung ),유남규 ( Nam Gyu Yu ),허민회 ( Min Hoe Heo ),김봉주 ( Bong Joo Kim ),원철희 ( Chul Hee Won ),박정훈 ( Jung Hun Park ) 한국건축시공학회 2016 한국건축시공학회 학술발표대회 논문집 Vol.16 No.1

Oyster shell is produce by shucking process in oyster farming in southern coast of Korea. In average, about 6.7kg of oyster shell is produced as an industrial waste for 1kg of oyster flesh, and even only in last year, it is estimated that about 150,000 ton of oyster shell is produced. Oyster shell is light weighted and the strength characteristic of it is similar to send. So we produced mortar test piece using grounded oyster shell powder under 5mm of its particle size according to fine aggregate standard and reviewed strength Properties.

굴 패각의 조립률 및 양생방법에 따른 강도특성에 관한 연구

정의인 ( Jung Ui-in ),홍상훈 ( Hong Sang-hun ),유남규 ( You Nam-gyu ),송승리 ( Song Seung-li ),김봉주 ( Kim Bong-joo ) 한국건축시공학회 2018 한국건축시공학회 학술발표대회 논문집 Vol.18 No.1

Oyster shell is produce by shucking process in oyster farming in southern coast of Korea. In average, about 6.7kg of oyster shell is produced as an industrial waste for 1kg of oyster flesh, and even only in last year, it is estimated that about 150,000 ton of oyster shell is produced. Oyster shell is light weighted and the strength characteristic of it is similar to send. So we produced mortar test piece using grounded oyster shell according to aggregate and reviewed strength characteristic. Therefore, in this study, the strength characteristics of the test specimen are evaluated by artificially altering fineness modulus and curing method by processing oyster shells.

굴 패각과 건식공정 바텀애시를 사용한 내화보드의 가열실험

정의인 ( Ui-in Jung ),김봉주 ( Bong-joo Kim ),김진만 ( Jin-man Kim ) 한국건축시공학회 2016 한국건축시공학회지 Vol.16 No.3

This study is a research about performance of fireproof board using industrial waste such as oyster shell and dry process bottom ash through the heating test and conclusions were obtained as follows. Test samples show back side temperatures as follows : in 300℃, 103.1∼125.1℃, in 600℃, 201.1∼210.1℃, in 900℃, 249.2∼276.9℃. In the test, temperature increases of specimens of fireproof board are kept at certain temperatures hence it could be concluded that the specimens withstand high temperatures. According to the test, it could be concluded that fireproof board made by smaller particles shows better performance up to 600℃ while at higher temperatures, fireproof board made by bigger particles shows better performance. It is estimated that fireproof board made by particles of bigger size has more pore structure and it delays heat conduction.