http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
회전체 충격 및 Bottom-up형 송풍장치를 적용한 도로공사용 순환골재 품질개선 연구
윤상혁 ( Sang Hyuck Yoon ),김상헌 ( Sang-heon Kim ),이세현 ( Sea-hyun Lee ) 한국폐기물자원순환학회(구 한국폐기물학회) 2019 한국폐기물자원순환학회지 Vol.36 No.6
The modified CBR of the road construction recycled aggregate produced from the rotor impact and the bottom-up blower increased to 8.0% on average after passing, and the compaction performance was improved. The abrasion loss and sand equivalent were superior to those measured before passing through the rotary impact and the bottom-up type blower. The material satisfied recycled aggregate quality standards and could be used as recycled aggregate for road construction. Organic foreign matter content decreased to 67.5% after passing, and inorganic matter content decreased to 24.2% after passing. In addition, it is more effective to remove organic foreign matter than inorganic matter, which can be applied to recycled aggregate for road construction satisfying KS F 2574 standard. The recycled aggregate for road construction after passing through the rotor impact and the bottom-up type fan was satisfactory in both the plastic index and the liquid limit, and it seems to have resistance to bearing capacity and external force.
CO₂를 발포제로 활용한 단열재의 물리적 특성에 관한 연구
윤상혁(Yoon, Sang-Hyuck),이종찬(Lee, Jong-Chan),이세현(Lee, Sea-Hyun) 대한건축학회 2013 大韓建築學會論文集 : 構造系 Vol.29 No.1
Hydrochlorofluorocarbon (HCFC) is an ozone-depleting substance that is subject to environmental regulations based on the Montreal Protocol, and in South Korea, which is regarded as a developing country, its use will be restricted in phase starting in 2013 until finally being prohibited in 2030. HCFC is regulated Based on the Tokyo Protocol, HCFC is a regulated construction material for carbon dioxide reduction with GWP of 1,700~2,400 times that of CO₂, with a GWP of 1. At present in South Korea, the foaming agent used for extruded polystyrene insulation consists of solely HCFC, whereas it has been replaced with eco-friendly foaming agents (carbon dioxide, hydrocarbons) by advanced countries such as European countries and Japan as a measure for environmental change. A review of the physical properties of insulation material utilizing CO₂ showed that the compressive strength, flexural failure load, thermal conductivity, combustibility and moisture permeance satisfied the standards of KS M 3808 foaming polystyrene by 4~60%, and it was determined that the foaming agent could be replaced with CO₂ by 30%. Also, it is thought that adding graphite will improve the thermal conductivity of the insulation material.
저온열탈착법을 이용한 유류오염 건설잔토의 정화방법에 관한 실험적 연구
윤상혁(Yoon Sang-Hyuck),심종우(Shim Jong-Woo),이세현(Lee Sea-Hyun) 대한건축학회 2008 大韓建築學會論文集 : 構造系 Vol.24 No.2
The government and academic circle have concentrated their efforts in recycling the waste construction material, which are relatively easy to reuse, but it's been limited to recyclable aggregates from waste concrete, asphalt concrete and bricks. The amount of waste construction material reaches 129,572 ton/day, which accounts for 50% of the total wastes nationwide. And the soil among the construction waste is 6,657 ton/day or 5.1%. Though many of them are reused for neighboring construction sites, contaminated soil amounting to 1,843ton/day equivalent to 27% is buried at the designated landfill. The sources of such contaminated oil include gas station or oil storage, when the underground structure of those facilities was demolished. It's substantially difficult to identify the sources of contaminated soil since the construction sites are closed to outside. The contaminated residual soil is usually used for backfill. Since it's been broadly used irrespective of the region and use it's necessary to come up with the measures to deal with the contamination of residual soil from the early stage of the project. The study, for recycling the oil-contaminated soil, was intended to evaluate and analyze the decontamination character, depending on heating temperature and detention time, and review the character of the contamination degree by type of oil, thereby recommending the way of recycling the oil-contaminated soil.
설계기준강도별 콘크리트용 순환 굵은 골재 사용비율에 따른 순환골재 콘크리트 특성에 관한 연구
윤상혁 ( Sang-hyuck Yoon ),이세현 ( Sea-hyun Lee ) 한국폐기물자원순환학회(구 한국폐기물학회) 2021 한국폐기물자원순환학회지 Vol.38 No.3
Depending on the ratio of recycled aggregate used, the strength was similar to that of general concrete. There was no decrease in strength, and it is believed that achieving the target strength is possible. When the ratio of the recycled coarse aggregate is 25% of the total amount of aggregate (50% of the total coarse aggregate) or lower, slump is not expected to occur. It is believed that the higher the design standard strength, the greater the amount of powder. In addition, the management of slump, unit quantity, and the performance system is necessary.
계면활성제를 이용한 유류오염 건설잔토의 유분제거에 관한 연구
윤상혁(Yoon Sang-Hyuck),류동우(Ryu Dong-Woo),김두호(Kim Doo-Ho),심종우(Shim Jong-Woo),송태협(Song Tae-Hyeob),이세현(Lee Sea-Hyun) 대한건축학회 2009 大韓建築學會論文集 : 構造系 Vol.25 No.4
Soil and sand of various kinds occurred in earth excavation and land development stage of the construction project can be utilized in various ways according to its kind. The soil and sand occurred in such construction work is classified as waste in the current waste management law; however, it is used in many ways in various kinds of construction work in reality since it contains less foreign substance and the specific physical characteristics possible to use as banking material is secured. However, considerable amount of soil and sand polluted with oil due to oil leakage and intentional discharge of waste oil among the soil and sand from construction work is occurringfrom oil storage facilities or other facilities installed underground. If such polluted soil and sand is used as banking material, heavy metal and etc. may be worried about flowing out and affecting the land environment for the long period of time. Therefore, it is restricted in the country with Waste Management Law. Several methods possible to use such polluted soil and sand have been suggested and the statistic of the Ministry of Environment says that enormousquantity of polluted soil and sand occurs amounting to 27% of the total quantity of soil and sand occurrence in reality. It is considered greatly contributable to the conservation of national land environment if it is reused, therefore, the method for treatment of oil polluted soil and sand is currently required. Accordingly, the purpose of this research is to reuse waste soil and sand as refilling material for pipeline construction work by suggesting the method for reusing oil polluted waste soil and sand in order to reutilize the waste soil and sand polluted from oil after examining and analyzing the purification characteristics according to the rate of addition of washing solution and the time for washing.
포러스 콘크리트를 利用한 보도용 콘크리트판 적용에 關한 實驗的 硏究
윤상혁(Yoon Sang-Hyuck),정근호(Jung Keun-Ho),이영도(Lee Young-Do),정상진(Jung Sang-Jin) 대한건축학회 2003 大韓建築學會論文集 : 構造系 Vol.19 No.12
A practical use of cement as a main material of concrete is increasing in rate of pavement in order to develop urban communities. Most these are consisted of non-permeability materials which are asphalt concrete, cement concrete. Because of using the materials, when it is rainy rain-water temporarily flows in the river or the sea through a sewage. By the phenomenon, rain-water which is restored in under water of the urban center is been decreasing. So lack of under water leads to making into a desert. At rainy, it can not keep water in store so that brings about high temperature and can threaten an ecosystem. Therefore, a study on porous concrete including high volume continued void is being progressed for the ecosystem as a materials of closed to eco. This study is a fundamental study on developing secondary of advanced pavement materials. There is a purpose for this study to present way of products side walk concrete slabs.