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Hydrometer법에 의한 밀도 값과 시험 성적서간 상관분석을 통한 플라이애시의 품질분석
문병룡 ( Moon Byeong-yong ),김태우 ( Kim Tae-woo ),이재진 ( Lee Jae-jin ),송흥호 ( Song Heung-ho ),한민철 ( Han Min-cheol ),한천구 ( Han Cheon-goo ) 한국건축시공학회 2017 한국건축시공학회 학술발표대회 논문집 Vol.17 No.1
Basic lot tests via textile and visual examinations are conducted on FA carried into in-service RMCs. The system of evaluating quality by taking samples from each lot and examining them, or evaluating quality based on the score reports submitted by the deliverer during in-service training have on some instances been called into doubt as to their reliability in evaluating the quality of FA. Therefore this study sought to measure the density value of FA that is actually delivered to RMC companies according to the Hydrometer method and analyze its correlation to its test scores, to in turn analyze the reliability of the test reports and the characteristics of the quality of FA. The results led to the conclusion that the fineness and density marked on the score reports were problematic, and therefore accurate experiments and adjustment of significant digits on the test report are necessary.
액체밀도계에 의한 고로슬래그 미분말 분말도 신속평가에서의 영향인자 분석
문병룡 ( Moon Byeong-yong ),김민상 ( Kim Min-sang ),이제현 ( Lee Jea-hyeon ),주은희 ( Joo Eun-hui ),한민철 ( Han Min-cheol ),한천구 ( Han Cheon-goo ) 한국건축시공학회 2017 한국건축시공학회 학술발표대회 논문집 Vol.17 No.2
In this research, the blast-furnace slag powder using the hydrometer also attempted to analysis the influence factor due to the temperature change of water and sample, and the number of upside down turns at the time of rapid evaluation. As a result, the influence of the number of turn was not large, but was the temperature of the water and sample are greatly affected.
마모기로 분쇄한 Reject Ash가 빈배합 모르타르의 공학적 특성에 미치는 영향
문병룡 ( Moon Byeong-yong ),박용준 ( Park Yong-jun ),조만기 ( Jo Man-ki ),박병문 ( Park Byeong-moon ),한민철 ( Han Min-cheol ),한천구 ( Han Cheon-goo ) 한국건축시공학회 2016 한국건축시공학회 학술발표대회 논문집 Vol.16 No.2
As coal fly ash emissions have increased due to additional constructions of domestic heat power plants, the amount of embedded reject ash (Rj henceforth) is increasing as well. Most Rj is embedded, so if it is used as an alternative admixture instead of cement, embedded quantities will decrease, leading to economic and environmentally positive effects. Therefore this study conducted an experiment to contemplate the usability of Rj ground in the Los Angeles abraser, and what effects ground Rj has on the engineering properties of poor-mix mortar. The result was that as the number of grinding turns increased, liquidity, air quantity and intensity were improved, proving Rj a possible alternative admixture to cement.
유지류 도포가 보통강도 콘크리트의 염해저항성에 미치는 영향
문병룡 ( Moon Byeong-yong ),김태우 ( Kim Tae-woo ),현승용 ( Hyun Seong-yong ),백철 ( Baek Cheol ),한민철 ( Han Min-cheol ),한천구 ( Han Cheon-goo ) 한국구조물진단유지관리공학회 2017 한국구조물진단유지관리공학회 학술발표대회 논문집 Vol.21 No.1
In previous research, the durability of the concrete was improved by filling the capillary voids with soap by the saponification reaction of the glycerin ester of the oil and the alkali of the concrete. Thus, in this research, there will be an experimental investigation on the effects of various strengths on the resistance to salt attack resistance by applying ordinary strength concrete.