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Hydromete의 원리를 이용한 레미콘 공장에 입고되는 OPC의 분말도 신속 품질평가법 제안
이재진 ( Lee Jae-jin ),이제현 ( Lee Jea-hyun ),현승용 ( Hyun Seong-yong ),김영태 ( Kim Yeong-tae ),한민철 ( Han Min-cheol ),한천구 ( Han Cheon-goo ) 한국건축시공학회 2017 한국건축시공학회 학술발표대회 논문집 Vol.17 No.2
In this research, the density value of the turbid solution is measured by using the principle of inexpensive but easy Hydrometer method for cement delivered to the actual raw concrete plant, By analyzing the correlation of powder aid, we will try to present a scheme that can be utilized as a method of acquisition acquisition inspection. As a result of the analysis, it was found that there was a large difference between the measured powders assisted with cement powder on the report, and the correlation with the actually measured powder aid Hydrometer density value was good. Therefore, using the method of Fig. 3, it was possible to know that the degree of powder quality of cement delivered to the raw concrete factory can be evaluated quickly and utilized at the time of argument inspection.
리젝트애시를 사전혼합골재로 활용시 AE제에 의한 공기량 확보방안
현승용 ( Hyun Seong-yong ),문병룡 ( Moon Byong-yong ),이제현 ( Lee Jea-hyeon ),장덕배 ( Jang Dik-bae ),한민철 ( Han Min-cheol ),한천구 ( Han Cheon-goo ) 한국건축시공학회 2017 한국건축시공학회 학술발표대회 논문집 Vol.17 No.2
This paper is to provide a method to prevent air loss of the concrete using reject ash based ternary blended aggregate due to absorption of AE agents by reject ash by adding AE agents into reject ash before mixing concrete. Test results indicate that air loss due to presence of reject ash in ternary blended aggregate can be recovered by over use of AE agents into aggregate directly before mixing.
화력발전부산물을 골재로 사전혼합한 혼합골재 고강도 모르타르의 공학적 특성
현승용 ( Hyun Seong Yong ),백철 ( Baek Cheol ),이제현 ( Lee Jea Hyeon ),박구병 ( Park Goo Byeong ),한민철 ( Han Min Cheol ),한천구 ( Han Cheon Goo ) 한국구조물진단유지관리공학회 2017 한국구조물진단유지관리공학회 학술발표대회 논문집 Vol.21 No.1
In this research, in order to improvement the performance of the two-component mixed aggregate mixed with fine granite fine aggregate and seawater, the examination of the effect of reject ash on the cement mortar according to the change of substitution rate was done. As a result, it was found that the effect of improving the compressive strength is more effective when the rejection ash is replaced by 5% in the mixed aggregate than in the case of using the high quality aggregate.
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.