• 제목/요약/키워드: waterproof

검색결과 475건 처리시간 0.024초

인공지반 녹화시스템 활용을 위한 일체형 방수·방근 시트의 성능평가 (Assessment of Evaluation by Hybrid Waterproof-Roof Barrier Layer for Green System on Artificial Ground)

  • 오창원;홍종철;박기봉
    • 한국건축시공학회지
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    • 제15권4호
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    • pp.391-396
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    • 2015
  • 도심지 건물의 증가는 친환경 공간에 대한 요구를 발생시키고, 이에 따라 옥상 및 인공지반 녹화의 보급이 급속히 증가되고 있다. 녹화시공은 방수층, 방근층, 보호콘크리트 등과 같이 다양한 재료를 시공하므로 시공시간이 길고, 하자 발생가능성이 높아진다. 본 연구는 기존의 녹화시스템 시공단계를 단축, 시공성을 향상시킨 새로운 녹화시스템에 사용하는 일체화된 방수 방근 하이브리드 시트의 물리적성능, 내구성, 방수성, 방근성을 평가함으로써 성능수준을 확인하고, 현장 적용 여부를 판단하고자 하였다. 시험결과, 우수한 물리적 성능 및 내구성, 방수성, 방근성을 확인하였으며, 향후 mock-up 시험을 수행하여 장기성능을 검증 중이다.

옥내소화전의 방수압 실측에 의한 실태조사 연구 (A Study on the Status of Waterproof Pressure of Indoor Hydrant Proportioner by a survey)

  • 최규출;정상
    • 한국화재소방학회:학술대회논문집
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    • 한국화재소방학회 2009년도 춘계학술논문발표회 논문집
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    • pp.255-263
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    • 2009
  • 건축물 실내에서의 화재발생 시 초기 소화설비로 시설하고 있는 옥내소화전은 초기화재 진압용으로 큰 역할을 담당하고 있다. 현재 시설되어 있는 옥내소화전 시설이 국가화재안전기준(NFSC)에서 규정하고 있는 일정 방수압을 유지하여야 화재발생 시 소화설비로서 그 기능을 발휘할 수 있다. 대부분의 건축물에 설치되어 있는 옥내소화전의 방수압을 실측하여 본 결과 건물내에 설치된 소화전의 방수압이 국가화재안전기준에서 제시하는 기준치 보다 높게 나타나고 있었다. 이는 매우 바람직한 현상으로 정기적인 소방검사에 따른 소방시설 유지관리의 결과로 보여진다. 앞으로도 소방시설물에 대한 TAB를 통하여 화재진압시설의 정기적이고, 지속적인 안전관리가 이루어 져야 할 것이다.

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Dynamic response and waterproof property of tunnel segmental lining subjected to earthquake action

  • Yan, Qixiang;Bao, Rui;Chen, Hang;Li, Binjia;Chen, Wenyu;Dai, Yongwen;Zhou, Hongyuan
    • Earthquakes and Structures
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    • 제17권4호
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    • pp.411-424
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    • 2019
  • In this study, a numerical model of a shield tunnel with an assembled segmental lining was built. The seismic response of the segmental lining of the section of the shield tunnel in Line 1 of the Chengdu Metro is analyzed as it passes through the interface of sand-cobble and mudstone layers. To do so, the node-stress seismic-motion input method was used to input the seismic motion measured during the 2008 Wenchuan earthquake, and the joint openings and dislocations associated with the earthquake action were obtained. With reference to the Ethylene-Propylene-Diene Monomer (EPDM) sealing gaskets used in the shield tunnels in the Chengdu Metro, numerical simulation was applied to analyze the contact pressure along the seepage paths and the waterproof property under different joint openings and dislocations. A laboratory test on the elastic sealing gasket was also conducted to study its waterproof property. The test results accord well with the numerical results and the occurrence of water seepage in the section of the shield tunnel in Line 1 of the Chengdu Metro during the 2008 Wenchuan earthquake was verified. These research results demonstrate the deformation of segmental joint under earthquake, also demonstrate the relationship between segmental joint deformation and waterproof property.

옥상용 합성고분자 시트를 애용한 지붕노출 시스템 적용에 관한 연구 (A Study on Application of Exposure System using Waterproofing Sheets of Synthetic Polymer for Rooftop)

  • 이상수;김수련;곽규성;오상근
    • 한국건축시공학회:학술대회논문집
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    • 한국건축시공학회 2005년도 춘계 학술기술논문발표대회 논문집
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    • pp.179-183
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    • 2005
  • In apply roof waterproof system using of synthetic high polymer sheet for rooftop measure physical performance (tension$\cdot$tearing ability, temperature relativity, heating stretch performance, junction performance, wind resistance test) by various test environment condition waterproof test of structure and performance of construction work aspect, present suitable form of construction work under these environment. Also, wish to improve durability of concrete structure as that examine in priority about adhesion method and joint junction method with waterproof out surface, and present new direction about roof system application of waterproofing method for rooftop.

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수증기 투과형 단열 복합 방수 시스템의 단열 성능에 관한 연구 (A study on the heat insulation performance of vapor penetration-insulate complex waterproofing system.)

  • 최수영;안기원;장덕배;김종필;오상근
    • 한국건축시공학회:학술대회논문집
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    • 한국건축시공학회 2016년도 추계 학술논문 발표대회
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    • pp.62-63
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    • 2016
  • In addition to the waterproof sheet waterproof objectives that apply to the building roof it is being constructed, including a complex such as insulation performance, root-resistance. However, thermal insulation of the composite waterproofing sheet is an insulating effect a wide variety depending on the specific construction -specific, material and even the effect is this part of the test to the generation when insignificant compared to each other a number of roof insulation effect of the insulation composite waterproof sheet that is currently in effect analysis.

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콘크리트 구조물의 내구성 증진을 위한 침투성 발수제의 성능평가 (Evaluation on Performance of Penetrative Water-repellent for Durability Progress of Concrete Structure)

  • 장석환;우종태;남용혁;김성수
    • 한국구조물진단유지관리공학회 논문집
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    • 제7권1호
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    • pp.289-296
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    • 2003
  • The evaluation on performance of gel type penetrative water-repellent for durability progress of concrete structure has carried out in this study. And liquid type waterproof agents have been estimated with same method. Also normal concrete that was not applied water-repellent and waterproof agents have been estimated. As results, the penetrative depth of gel type water-repellent were deeper than that of liquid type waterproof agents and those were superior to these in physical and durable performance.

저압용 방수 콘센트의 개발 및 평가에 관한 연구 (A Study on the Development and Estimation of Waterproof Outlet for Low Voltage)

  • 최충석;김창성
    • 전기학회논문지P
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    • 제57권2호
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    • pp.181-185
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    • 2008
  • In this paper, we investigates accident actual conditions of electric outlet for low voltage that is used into interior and clear hazardous factor. Electric outlet for general can know that melting of socket-outlet and carbonization of support occur if a contaminant becomes burnout because is flowed in. Existent outlet consists of structure that special quality is good but inflow of a contaminant is easy when is dry. But, waterproof outlet passes silicon layer and have connected structure plug. As developed outlet covers whole surface and back side, interval was shut. Safety pin of developed outlet was established to operate to vertical direction. Therefore, we estimate that contribute on prevention of electrical disaster if use developed outlet to a restaurant, a laundry, a laboratory etc.

옥상부 외단열 및 외방수 공법 제안에 관한 기초연구 (A study on the External Insulation and Waterproof Method of Rooftop)

  • Jang, Dae-Hee
    • 한국건축시공학회:학술대회논문집
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    • 한국건축시공학회 2019년도 춘계 학술논문 발표대회
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    • pp.137-138
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    • 2019
  • To overcome the limitation in relation to thermal insulator's selection and installation method that is suitable for exterior insulation and waterproof construction methods, a production basis of thermal insulators of which manufacturing knowhow is held by companies was ensured and future-oriented construction methods to adopt new materials were applied. Performance verification was conducted through performance and mock-up tests of thermal transmittance on the cross sections where the flexible insulators were applied based on the improved prototype and performance data were obtained. To overcome the biggest drawbacks (walking feeling and damage etc.) in the exterior insulation and waterproof construction method, inserting a protective layer between thermal insulator and water-proof layer was proposed, and polypropylene corrugated cardboards.

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복합계 멤브레인 방수층의 수밀성 시험 평가방법 개선방안 연구 (Improvement of Watertightness Evaluation Method in Waterproof Membrane)

  • 김명지;선윤숙;김수연;오상근
    • 한국건축시공학회:학술대회논문집
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    • 한국건축시공학회 2018년도 추계 학술논문 발표대회
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    • pp.50-51
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    • 2018
  • Although the introduction of new materials and new construction methods and overseas materials has become more active due to the diversification of the construction market, the quality standards of waterproofing methods in Korea are insufficient. In particular, the quality control standard is applied to the KS F 2622:08 (Membrane Waterproofing layer performance test method), which is the existing standard, to prepare standards for quality control of waterproof materials, which is increased in Korea.

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돌기형 접합 보강재를 이용한 옥상 노출 복합방수의 조인트 시공방법에 관한 연구 (Sheet Jointing Method of the Roof Exposed Hybrid Waterproofing Using the Bump-type Joint Reinforcement)

  • 김명지;안기원;김동춘;오상근
    • 한국건축시공학회:학술대회논문집
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    • 한국건축시공학회 2018년도 추계 학술논문 발표대회
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    • pp.147-148
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    • 2018
  • Seat waterproofing materials applied to the roof of a building concrete structure inevitably produce joints and are applied with opposite dam joints or overlapping joints depending on the waterproof material applied to the top of the sheet. In this case, the joint performance is determined by the material at the top, rather than by the superimposed joint. In order to solve this problem, various reinforcements have been used to apply to the connecting parts of the opposite dam, but the problem of attachment between different materials or the lack of reinforcement of the joint tape has not been solved. Therefore, for the purpose of securing tensile performance to the joints, this study is used as a reinforcement for the joints of PP materials with high tensile performance and as a reinforcement for nylon materials.

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