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교육시설(敎育施設)의 리모델링을 위한 구성재료(構成材料)의 노후화(老朽化) 판정기준(判定基準) 작성(作成)(III)
서치호(Seo, Chee-Ho),최민권(Choi, Min-Kwon),최수경(Choi, Soo-Kyung),오세출(Oh, Se-Chul),권용균(Kwon, Yong-Kyun) 한국교육시설학회 2004 敎育施設 Vol.11 No.1
Deterioration of the educational facilities built before 1985 is a serious situation. The purpose of this study is to present the efficient remodeling method of old educational facilities. This paper, part III, presents the systemic and synthetic judgment method of deterioration grade of finished materials. Evaluation of the deterioration is carried out in every eight classrooms or building elements divided by the use. And classrooms are divided by several parts for example floor, wall and ceiling etc.. The whole deterioration of the building judges the result of every part collectively.
교육시설(敎育施設)의 리모델링을 위한 구성재료(構成材料)의 노후화(老朽化) 판정기준(判定基準) 작성(作成)(II)
서치호(Seo, Chee-Ho),최민권(Choi, Min-Kwon),최수경(Choi, Soo-Kyung),오세출(Oh, Se-Chul) 한국교육시설학회 2003 敎育施設 Vol.10 No.5
Deterioration of the educational facilities built before 1985 is a serious situation. The purpose of this study is to present the efficient remodeling method of old educational facilities. This paper, part II, presents the systemic and synthetic judgment method of deterioration grade of structural components. Deterioration grade of the whole structural components are judged by synthetic evaluation score which is the total of the score of ten evaluation items. And we added the importance coefficient of the viewpoint of four performance to each evaluation item.
반응표면분석법에 따른 저온소성 경량골재의 킬른공정변수 최적화
이한백,서치호,Lee, Han-Baek,Seo, Chee-Ho 한국세라믹학회 2010 한국세라믹학회지 Vol.47 No.5
This paper was to evaluate the influence of kiln process parameter(kiln angle, kiln rotating speed) of lightweight aggregate using waste glass and bottom ash with industrial by-products on thermal conductivity, density, water absorption, fracture load and porosity by response surface analysis. In the results of surface plot and contour plot, it has verified that kiln residence time of lightweight aggregate increase as kiln angle and rotating speed decreases. For this reason, pore size and quantity tend to increase by active reaction of forming agent. It seems to be that increase in pore size and quantity have caused decreasing density, fracture load and thermal conductivity, and increasing water absorption. In conclusion, optimization of kiln process parameter on thermal conductivity, density, water absorption, fracture load and porosity by response surface analysis are kiln angle 2.4646%, kiln rotating speed 40.7089 rpm.
지석원,서치호,Ji, Seok-Won,Seo, Chee-Ho 한국건설순환자원학회 2006 한국건설순환자원학회지 Vol.2 No.2
The total production of the smelted copper reaches 450,000 tons per year, and the production of copper-related goods grows year by year owing to the extension of facilities and the development of production techniques. On the other hand, the volume of slag discharges by-produced at the time of copper smelting process is also on trend of increase. The by-produced copper smelting slag amounts to 700,000 tons a year, which is one and half times of the total smelted copper production. Accordingly nobody disagrees that comprehensive researches on how to deal with and how to reuse the accumulated smelting copper slag have to be encouraged. Even though the possible uses of the copper smelting slag have being made on various levels at present as materials for iron powder cement, sand-blasting and fire-proofing rock wool, but a considerable volume of the slag is abandoned as unnecessary by burying or piling up in careless in the open ground.