• 제목/요약/키워드: Waterproofing

검색결과 471건 처리시간 0.026초

지하 전력구조물의 거동에 대한 방수층의 대응 성능 평가 방법 개발 (10 mm 거동 대응형 방수시스템 Mock-Up 시험 방법) (A Performance Test Method of Waterproofing System to Evaluate the Responsiveness to the Movement of Box Culvert Structure for Underground Electronic Power Facility (Mock-Up Test Method of Waterproofing Layer to Response 10 mm Movement of Expansion Joint))

수용성 고무 아스팔트계 도막방수재의 실외 적용을 위한 기본 물성 연구 (A Study on the Basic Physical Properties of Water-Soluble Rubber Asphalt-based Coating Waterproofing for Exterior Application)

  • 강효진;윤성환;오상근
    • 한국건설순환자원학회논문집
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    • 제8권4호
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    • pp.553-561
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    • 2020
  • 국내 건축 구조물 방수재료 중 하나인 수용성 고무 아스팔트계 도막 방수재는 주로 실내(화장실, 주방, 배란다 등)에 많이 사용되고 있다. 일반적으로 아스팔트계열의 재료는 검은색의 기본 채도를 벗어나지 못하여 노출용보다는 비노출용으로 많이 쓰이고 있으며, 수용성 고무 아스팔트계 도막방수재의 경우는 기본적으로 낮은 물성 때문에 실내로 한정하여 적용하고 있다. 이에 인장 및 신장성 향상을 위하여 실란커플링제와 무기필러, 프로세서 오일 넣어 물성을 향상시켰고, 이에 따라 실외 도막방 수재 품질기준과의 기초 물성을 분석하였다. 그 결과 노출용 품질기준과 비교한 수용성 고무 아스팔트 도막방수재는 시험 평가가 진행된 전 항목에서 실리콘 고무계의 기본 물성 품질기준을 상회하는 결과가 나타났으나, 우레탄 고무계 1류의 인장강도 및 인열강도 클로로프렌 고무계 인열강도 품질기준 대비 성능이 약 34.2%에서 약 40.8% 정도 부족한 것으로 나타났다.

조경 녹화용 방수.방근층의 방근 성능평가 시험방법에 관한 연구 - 모의 바늘과 지하경을 이용한 방근 성능평가 시험방법 - (A Study on Test Method for Evaluating Root Resistance in Waterproofing and Root Resistance Membrane Used in Landscape Architecture - A Test Method for Evaluating Root Resistance that Use a Simulated Needle and a Rhizome -)

  • 이준호;표순주;신진학;오상근
    • 한국건축시공학회:학술대회논문집
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    • 한국건축시공학회 2009년도 춘계 학술논문 발표대회 산업계
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    • pp.89-97
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    • 2009
  • As landscaping building roofs and concrete structures increase gradually for low carbon green growth policy of government, But waterproofing membranes of those structures are effecting by root penetration of landscape plant. 80, we progressed study about test method for fast evaluating root resistance of waterproofing materials jointly with Tokyo Institute of Technology. The result of the study is as follows: (1) The penetrating load of the needle at the displacement speed of 1mm/min was measured for various membrane to basis and lap joints of membrane, the load force was $3{\sim}50$ N by material variously. (2) According to the test method of deriving rhizomes of bamboo grass to basis and lap joints of membrane, there were no penetrated membrane until present, but need persistent observation. (3) Test method of deriving rhizomes of bamboo grass to basis and lap joints of membrane can shorten from period of 2 years to 1 year for testing. Because rhizomes of bamboo grass can grow from May to September, test is possible in same period.

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구체방수제가 혼입된 시멘트 경화체의 방수 메카니즘 (Waterproofing Mechanism of Hardened Cement Paste with Waterproofing Materials)

  • 강현주;송명신;박종헌;전세훈;이성현
    • 한국세라믹학회지
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    • 제50권1호
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    • pp.25-30
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    • 2013
  • The pore volume of hardened cement with waterproofing materials is lower compared to that of hardened cement without waterproofing materials. Thus, fewer gaps will appear by means of chemical reactions between $Ca^{2+}$ ions in hardened cement and water, solutes, and other ions. Due to the selective permeability, the osmotic pressure of hardened cement can change due to physical effects such as the reduction of the pore volume and the reduction in the number of pores, as well as by the electrochemical reaction between water, solutes, other ions and $Ca^{2+}$ ions in hardened cement. Of course, these factors do not have independent effects but instead a combined complex effect. Accordingly, we studied changes in the osmotic pressure due to the difference in the pore structure of hardened cement. A pore size smaller than 1 nm in hardened cement had only a slight effect on the osmotic pressure, whereas a pore size larger than 1 nm had a direct effect on the osmotic pressure.

EVA개질 투명시트와 부직포를 열풍 점융착한 일체형 방수시트를 이용한 터널방수공법에 관한 연구 (A study on the EVA reforming processes transparency sheet and nonwoven warm air point adhesion using of tunnel waterproofing method.)

  • 선윤숙;김점술;김수련;오상근
    • 한국건축시공학회:학술대회논문집
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    • 한국건축시공학회 2005년도 춘계 학술기술논문발표대회 논문집
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    • pp.185-190
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    • 2005
  • Safe, economical and environment-friendly tunnel construction are required again along with social continuous development, the importance of waterproof work that is portion that actually all of user and builder can find that is embossed by tunnel construction's one of important construction. Also, ECB (Ethylen Copolymer Bitumen) sheet that is used in existing tunnel waterproofing method (ECB waterproofing method) being black because asphalt (Bitumen) is added, by purpose that make illumination of tunnel interior brightly and scar discovery eases in sheet with coating white film, but ECB that is used present according as ECB that asphalt is added does not satisfy high tensile strength of construction field, quality standard of extension. Also ECB denigrates color of black M/B that asphalt is excepted.

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산업연관표를 이용한 지붕방수공법별 $CO_2$ 배출량 산정 (The Estimation of $CO_2$ Emission Cost on Roof Waterproofing Types Using Input-Output Table)

  • 정영철;박규태;이병윤;김광희
    • 한국건축시공학회:학술대회논문집
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    • 한국건축시공학회 2010년도 춘계 학술논문 발표대회 1부
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    • pp.243-246
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    • 2010
  • Recently, global warming problem is a major issue in international community. The carbon dioxide ($CO_2$) emissions in the construction industry is one of the main factors causing a global warming problem. Accordingly, various researches on $CO_2$ emissions caused by the construction industry is needed and construction methods which is low $CO_2$ emissions should be developed. In this study, $CO_2$emission cost is compared with roof waterproofing types in construction phase. As a result, the $CO_2$ emission costs of asphalt waterproofing is the highest. This research is to provide basic information for selecting appropriate construction methods in aspect of low $CO_2$ emission cost.

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친환경 옥상방수공법 개발에 관한 연구 (A study on the Development of an Eco-friendly Rooftop Waterproofing Method)

  • 오동식;고성석
    • 한국건축시공학회지
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    • 제10권5호
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    • pp.103-111
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    • 2010
  • 본 연구는 현행 옥상 방수공법이 가지고 있는 문제점과 그 원인을 분석 파악하고, 이에 따른 대체 공법을 제안함으로써 옥상 방수공법 발전에 기여하는데 있다. 이와 같은 측면에서 본 연구에서는 설계 및 시공상의 누수에 따른 문제점 분석을 통해 이를 저감시키고, 시공 품질향상, 노동력의 절감, 공기단축, 환경문제 개선 등 기존 방수공법의 문제점을 보완한 친환경적 복합방수공법을 개발하고 기존공법과의 분야별 성능 비교 분석 및 현장적용 시공성능 평가를 실시하여 방수공법 특성과 결론을 도출하였다.

방수보호재 및 방근재로서의 활용을 위한 토목용 보강섬유의 실험적 연구 (Experimental Study on Reinforcing Fiber for Civil Engineering used for Waterproofing Protection and Root Resistance Performance)

  • 김범수;이정훈;송제영;송영찬;김용로;오상근
    • 한국건축시공학회:학술대회논문집
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    • 한국건축시공학회 2017년도 춘계 학술논문 발표대회
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    • pp.67-68
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    • 2017
  • This paper discusses the application of civil structure use reinforcing fiber mixed with concrete to be used as protection layer of waterproofing material and root resistant layer installed in below-grade parking lot upper slab of residential building. A performance evaluation under the prescribed method outlined in KS F 4938 was used for this new material. The testing results showed that the fiber reinforcement can be used to strengthen the protection for the waterproofing material. Also, plants that were planted in June 2016 have not yet penetrated the specimens used for root resistance testing. The domestic root resistance performance testing usually covers the period of 2 years, thus further observation to make any conclusion about the root resistance property is required.

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우레탄 도막방수재의 시공조건에 따른 물성변화 (A Study on the Physical Property by Construction Condition of Urethane Waterproofing Membrane)

  • 김영삼;한천구
    • 한국구조물진단유지관리공학회 논문집
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    • 제17권6호
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    • pp.138-144
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    • 2013
  • 비노출형 도막방수재 도포 후 누름콘크리트 타설 시기에 따른 도막방수재의 물리적 특성과 바탕면 조건, 도막두께 및 보강포 사용유무에 따른 내피로성을 검토하였는데, 누름콘크리트 타설 시기가 짧을수록 변색이 심하였고, 도막두께가 두꺼운 반면 인장성능이 낮았다. 내피로 성능은 3 mm의 도막두께에서는 파단되지 않았으나 1, 2 mm는 모두 파단 되었고 부직포로 보강한 경우의 내피로성능이 상대적으로 우수한 것으로 나타났다.

수경화성 폴리우레탄 도막재의 물 혼합비에 따른 저온 및 고온 환경에서의 인장성능 변화 추이 연구 (A Study on Trend of Tensile Properties with Ratio of Water Mixture under Low and High Temperature Environment in Hydroponic Polyurethane Waterproofing Materials)

  • 김동범;안현호;김선도;박완구;박진상;오상근
    • 한국건축시공학회:학술대회논문집
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    • 한국건축시공학회 2016년도 춘계 학술논문 발표대회
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    • pp.211-212
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    • 2016
  • Due to a lack of objective and adequate study on the physical effects on hydroponic polyurethane waterproofing material water mixture ratio, construction site workers are having to rely on their hands-on experience to determine a mixture ratio, resulting in difficulty of maintaining quality management. Particularly in cases of rooftop exposed type hydroponic polyurethane materials, the varying temperature conditions make it further difficult for quality management control. in this regard, this study conducts tensile strength testing and compares the tensility change rates hydroponic polyurethane waterproofing materials with various water mixture ratios ranging from 0%~50% and exposed to alternating temperature change between -20℃ to 60℃ in the span of 1 hour after curing for 14 days.

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