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에어분사구 설치에 따른 폴리우레아 도막 방수·방식재의 비산 발생 저감에 관한 연구
김선도 ( Kim Sun-do ),박완구 ( Park Wan-goo ),박진상 ( Park Jin-sang ),조일규 ( Cho Il-kyu ),김병일 ( Kim Byoung-il ),오상근 ( Oh Sang-keun ) 한국건축시공학회 2017 한국건축시공학회 학술발표대회 논문집 Vol.17 No.1
This nozzle has an air flow generation mechanism in the air groove of the attachment cell part located at the end of the injection nozzle. Since the air grooves also function as an air curtain, the airborne particles generated when the waterproof material is sprayed is effectively blocked. In the past, spraying of the waterproof material through the high pressure was possible, but this technology allows stable injection due to the static agitation method, and various problems caused by particle generation has been (damages to neighboring areas, economic loss, etc.) minimized.
황선도(Sun Do Hwang),박영조(Young Jo Park),최수하(Soo Ha Choi),이태원(Tae Won Lee) 한국수산과학회 1997 한국수산과학회지 Vol.30 No.1
Seasonal variation in species composition of fish in the coastal water off Heunghae were determined using the samples collected by trammel net from May, 1989 to October, 1990. Of 28 species identified, three resident species such as Sebastes inermis, Hexagrammos otakii and Hexagrammos agrammus predominated in abundance except fall. In fall, temporal species such as Stephanolepis cirrhifer and Thamnaconus modestes were dominated. The number of species and abundance did not show seasonal variation. Mean catch per unit effort was 1,938 g (11 individuals) with a 100 m net during one night. Analysis of size composition of dominant species revealed that most fish collected were composed mainly of large individuals (>20 ㎝) whose ages were older than 3 years.
건설방수산업분야에서의 유효자원 재활용 및 응용 기술 현황
박진상(Park, Jin-Sang),김선도(Kim, Sun-Do),박완구(Park, Wan-Goo),김동범(Kim, Dong-Bum),이종용(Lee, Jong-Yong),오상근(Oh, Sang-Keun) 한국건설순환자원학회 2016 한국건설순환자원학회 논문집 Vol.4 No.1
본 연구는 건설방수분야의 유효자원 재활용 현황에 대하여 시장 특성 상 정확한 파악이 어려운 점을 고려하여 이에 대한 대안으로 관련 제도 및 인증을 중심으로 조사하여 분석하는 방식으로 연구를 진행하였다. 조사 대상은 건설방수분야에서 획득 가능한 유효자원 재활용 관련 인증으로 선정하였으며, 환경표지, 녹색기술, 신기술을 중심으로 현황을 파악하고 분석하였다. 현황 파악 및 분석 결과, 환경표지의 경우 총 38개 제품이 유효자원 재활용을 사유로 인증을 획득하였으며, 녹색인증은 총 10개, 신기술의 경우, 8개 기술이 유효자원 재활용을 응용한 기술로 확인되었다. 재활용된 자원은 대부분 합성고분자계(EVA, PVC 등), 폐타이어 분말, 폐고무 등이 주를 이루고 있음에 따라 건설방수분야에서의 유효자원 재활용은 전반적으로 소재의 다양성에 있어 제한적인 것으로 확인되었다. This paper intends to analyze the roles of regulations and certifications within the construction market that affect the effective recycling and application methods of construction waterproofing industries. Certifications, eco-labels, green certification patents, and new excellent technologies obtained in construction waterproofing industries are studied. In accordance to the study results, it was determined that, a total of 38 items obtained eco-labels with effective recycling as the theme, 10 items with green certifications, and 8 items with New Excellent Technologies. Regarding the types of effective recycled resources, most of them were concerned with composite-polymer(EVA, PVC, etc.) materials, waste tire powder, waste rubber, etc., which indicated that there is a clear limitation in the variety of the materials that are eligible for effective recycling in the construction waterproofing industries.
점착유연형 고무 아스팔트계 누수보수용 주입형 실링재의 내화학 시험방법 개선 연구
박완구 ( Park Wan-goo ),김동범 ( Kim Dong-bum ),박진상 ( Park Jin-sang ),김선도 ( Kim Sun-do ),김병일 ( Kim Byoung-il ),오상근 ( Oh Sang-keun ) 한국건축시공학회 2017 한국건축시공학회 학술발표대회 논문집 Vol.17 No.1
In this stduy, we will references to provide reasonable basis for the test environments applicable to the chemical resistance test covered by KS F 4935『Injection-type Sealing Materials for Water Leakage Crack of Adhesive and Flexible Rubber Asphalt』, analyze the problems with the current test methods in consideration of the features of materials. As a result, we assured more objective data in improved chemical resistance test methods.