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리젝트애시를 사전혼합 골재로 활용하는 굳지않은 콘크리트의 특성
현승용 ( Hyun Seong Yong ),박병문 ( Park Byung Moon ),박구병 ( Park Goo Byeong ),한민철 ( Han Min Cheol ),한천구 ( Han Cheon Goo ) 한국구조물진단유지관리공학회 2017 한국구조물진단유지관리공학회 학술발표대회 논문집 Vol.21 No.2
The objective of this paper is to offer the feasibility of premixed type ternary blended aggregates using reject ash(RA), crushed sand(CS) and sea sand(SS) by studying fresh properties of the concrete. RA is varied from 2.5% to 10% with interval of 2.5% by weight of mixed aggregates. Test results indicates that the replacement of RA by mixed aggregates with low quality crushed sand and sea sand resulted in decrease of slump and air contents.
화력발전부산물을 골재로 사전혼합한 혼합골재 사용 시멘트 모르타르의 공학적 특성
현승용 ( Hyun Seong-yong ),김민상 ( Kim Mis-sang ),이제현 ( Lee Jea-hyeon ),박병문 ( Park Byeong-moon ),한민철 ( Han Min-cheol ),한천구 ( Han Cheon-goo ) 한국건축시공학회 2017 한국건축시공학회 학술발표대회 논문집 Vol.17 No.1
In this study, the fundamental properties of cement mortar in relation to the change of the replacement ratio of the RA(Reject-Ash) were analyzed by mixing RA to the mixed aggregate consisting of poorly graded fine rock aggregate and marine aggregate for quality improvement. It was found that replacing 5% of the mixed aggregate with RA could improve the quality of the aggregate to the degree of fine rock aggregates.
콘크리트용 잔골재로서 석탄가스화복합발전 슬래그의 활용성 검토 - 물리적 성질 및 유해물질 함유량 특성을 중심으로 -
현승용 ( Hyun Seong-yong ),한준희 ( Han Jun-hui ),이재진 ( Lee Jae-jin ),신용섭 ( Shin Yong-sub ),한민철 ( Han Min-cheol ),한천구 ( Han Cheon-goo ) 한국건축시공학회 2018 한국건축시공학회 학술발표대회 논문집 Vol.18 No.1
This study is a fundamental consideration for using CGS from the IGCC as a fine aggregate for concrete. For the review, the physical properties and hazardous materials content of KS F 2527 were considered. The results showed that KS F 2527 standard was generally satisfied, making it possible to confirm the possibility that it is a fine metal considering its physical properties and hazardous materials content characteristics.
사전혼합골재로서 미정제 플라이애시가 굳지않은 콘크리트에 미치는 영향
현승용 ( Hyun Seong Yong ),박경택 ( Park Kyung Taek ),박구병 ( Park Goo Byeong ),한민철 ( Han Min Cheol ),한천구 ( Han Cheon Goo ) 한국구조물진단유지관리공학회 2017 한국구조물진단유지관리공학회 학술발표대회 논문집 Vol.21 No.2
The objective of this paper is to provide the feasibility of premixed type ternary blended aggregates using raw fly ash(Ra), crushed sand(CS) and sea sand(SS) by studying fresh properties of the concrete. Ra is varied from 2.5% to 10% with interval of 2.5% by weight of mixed aggregates. Test results indicates that the replacement of Ra by mixed aggregates with low quality crushed sand and sea sand resulted in decrease of slump and air contents due to increased viscosity.