• Title/Summary/Keyword: Construction waterproofing

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A study on waterproofing method using waterproofing sheet Top-Down method in underground structure (지하 구조물에 적용되는 역타설용 방수시트재의 성능 평가에 관한 연구)

  • Song Je- Young;Kwak Kyu-Sung;Kim Jeoung-Il;Oh Sang-Keun
    • Proceedings of the Korea Concrete Institute Conference
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    • 2005.05b
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    • pp.301-304
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    • 2005
  • The waterproofing in slab and wall of underground structure, have a couple of construction methods which are inside waterproofing methods for inner surface, and outside waterproofing methods for out wall and slab surface waterproofing. In resent years, however, it has been adapted the inside waterproofing construction method, as increasing of construction expenses cost and low workability and technology, nevertheless, outside waterproofing has set a most high value construction method. In inside waterproofing construction method, it is difficult to repair and assure durability and safety for concrete which has direct water-press. So, It is necessary for adopt the outside waterproofing method.

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An Experimental Study on Improvement in Waterproofing Performance of Ground Structures applied to Synthetic Polymeric Sheet of monolithic adhesion Type (일체부착형 합성고분자 시트를 이용한 지하구조물 방수 성능향상에 관한 실험적 연구)

  • Kang, Hyo-Jin;Song, Jei-Young;Kwon, Shi-Won;Oh, Sang-Keun
    • Journal of the Korea Institute of Building Construction
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    • v.5 no.3 s.17
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    • pp.125-129
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    • 2005
  • The waterproofing in slab and wall of underground structure, have a couple of construction methods which are inside waterproofing methods for inner surface, and outside waterproofing methods for out wall and slab surface waterproofing. In resent years, however, it has been adapted the inside waterproofing construction method, as increasing of construction expenses cost and low workability and technology, nevertheless, outside waterproofing has set a most high value construction method. In inside waterproofing construction method, it is difficult to repair and assure durability and safety for concrete which has direct water-press. So, It is necessary for adopt the outside waterproofing method. For that reasons, this study based on the application for outside waterproofing method on the under ground structure, to more increase durability, to introduce mono adhesive sheet waterproofing materials. as considering chemical, physical properties.

A Study on the Selection of Waterproofing Construction Firms using Fuzzy-AHP Model (퍼지 계층분석 모형을 이용한 최적 방수 시공업체 선정에 관한 연구)

  • Shin, Jin-Hak;Lee, Sun-Gyu;Song, Je-Young;Oh, Sang-Keun
    • Proceedings of the Korean Institute of Building Construction Conference
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    • 2012.05a
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    • pp.11-14
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    • 2012
  • The category for waterproofing is one of construction process most affected by falling-off in price competitiveness, construction quality, and material performance. Therefore, in order to select of waterproofing construction firms, it is necessary to consider Incorporating both price competitiveness and construction quality. In this article, I would like to analyze 10 Factors for Selecting using fuzzy-AHP model, including the survey of the waterproofing experts. This fuzzy-AHP model can be shown to calculate the fuzzy trigonometrical function to reflect weights for preference of 10 factors for the waterproofing construction firms. It was found from the result that waterproofing construction firms was searched order of priority for select by fuzzy-AHP model.

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A Study on complex waterproofing Method Using Part of Joint Watertightness Improved Sheet (접합부 수밀성 향상 시트를 이용한 복합방수 공법에 관한 연구)

  • Suh Woo-Il;Kim Su-Ryon;Kwak Kyu-Sung;Oh Sang-Keun
    • Proceedings of the Korean Institute of Building Construction Conference
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    • v.y2004m10
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    • pp.1-6
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    • 2004
  • We ensure a flat and regular basic surface by using part of joint waterproofing improved sheet method applying the upper slab of a concrete structure. We solve the problem of getting loose scale the general sheet by waterproofing of the sheet and improving adhesive strength of the basic concrete. Also, waterproofing sheet union to problem of joint have solved using of insertion type method so that, it improved a watertightness. It has improved in resist impact, resist abrasion and it is the effect of shortened construction period and cutting down on construction expenses. Here are the special quality and superiority of this waterproofing research. (1) Level material has the super adhesive strength so that it makes the basic surface without the gab of waterproofing sheet and waterproofing layer with the string adhesive strength. (2) We unite the sheet with the joining part between sheets by waterproofing sheet joint using of method. (3) There is the effect of shortened construction period and cutting down on construction expenses without waterproofing of protection.

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A Study on Selection of Roof Waterproofing Method by analyzing Life Cycle Costing (LCC 평가를 통한 지붕방수공법선정에 관한 연구)

  • Choi, Oh-Young;Kim, Tae-Hui;Kim, Gwang-Hee
    • Journal of the Korea Institute of Building Construction
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    • v.8 no.5
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    • pp.127-134
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    • 2008
  • The purpose of this study is to propose the decision making technique in roof waterproofing method at the early construction stage. Selecting the suitable construction method is difficult because of the complex interrelationships between many factors of influencing the construction method selection. This study presents an example of selecting suitable method by analyzing LCC (Life Cycle Cost) in roof waterproofing work. In this study, roof waterproofing method is analyzed by LCC(Life Cycle Cost) which is consists of the initial costs, running costs, and removal costs. Sheet waterproofing, membrane waterproofing and asphalt waterproofing costs are compared to select the most economic method. The result of this study revealed that considering LCC is useful in selecting the proper method in the construction work.

A Trend of New Waterproofing System for Building Roof (건축 옥상 방수 신기술의 동향)

  • 우영제;조병영;신주재;김영근
    • Proceedings of the Korea Concrete Institute Conference
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    • 2003.11a
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    • pp.549-552
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    • 2003
  • User's demand, as a maintenance for durability of construction and a comfortable life, and an incentive systems for new waterproofing system incite waterproofing company to evolve new waterproofing system that is upgraded waterproofing quality by getting advantages for the existing waterproofing systems. There are seven new waterproofing systems for building roof to be authorized from Ministry of construction & transportation. Those are multi-layers waterproofing system, and five of those are the insulation type. A trend of new waterproofing systems for building roof is multi-layers waterproofing system insulated.

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An Experimental Study on the Roof Composite Waterproofing Method for Membrane & Sheet Integrated Waterproofing Material (도막.시트 일체형 방수재를 이용한 옥상용 복합방수 공법에 관한 실험적 연구)

  • Oh Mi-Hyun;Park Jin-Sang;Choi Sung-Min;Park Young-Tea;Oh Sang-Keun
    • Proceedings of the Korean Institute of Building Construction Conference
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    • 2006.05a
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    • pp.31-34
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    • 2006
  • In this study on the appliable Asphalt sheet of monolithic and inorganic matter waterproofing material using of field because of problem of complex waterproofing sheet. Before this cement polymer modified waterproof coating and appliable asphalt sheet of monolithic whether have stability by method of construction about all style waterproofing that evaluate to new method of construction development naturally big emphasis put and try to approach. Did performance test item first at, as a result, drew by suitable thing in all KS items. This is considered to have more effective spot construction work because if means that have stability by material as well as method of construction.

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A Basic Study on Evaluation Method and Performance of Membrane Waterproofing Layer (멤브레인 방수층 성능 및 평가방법에 관한 기초적 연구)

  • Oh, Mi-Hyun;Kwon, Shi-Won;Kang, Hyo-Jin;Jung, Hee-Won;Choi, In-Sung;Oh, Sang-Keun
    • Proceedings of the Korean Institute of Building Construction Conference
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    • 2003.11a
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    • pp.17-21
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    • 2003
  • This study is mainly acceptive for physical material performance than waterproofing layer performance on the external condition after construction. The reason are legalized only for material performance quality standard even though it is existed waterproofing materials for membrane. In actuality, waterproofing layer are greatly occurred in performance a decreased developing essential element that are human footprints as a result physical perimeter environment after construction and on the construction. As the result, this present paper purpose for evaluation and performance of the membrane waterproofing layer on the construction.

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An Experimental study on the Construction Standard for Sealer of Injection Type for Leakage Maintenance (누수보수용 주입형 실링재의 시공 기준에 관한 실험적 연구)

  • Lim Min-Chan;Cho Il-Kyu;Seon Yun-Suk;Oh Sang-Keun
    • Proceedings of the Korean Institute of Building Construction Conference
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    • 2005.11a
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    • pp.51-54
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    • 2005
  • The concrete structure hasn't perfect waterproofing performance but if it doesn't have a joint part that could isolate a permeability. Concrete structure(communication tunnel and underground structure) has an expansion joint and construction joint. There are a lot of joint type after construction or expansion, shrinkage, vibration, over load, performance of decline etc.. they offer a water of way by variety change. In this reason, It carries in effect a waterproofing work for the concrete structure of waterproofing. but the structure has a behavior that cause a problem by waterproofing layer of damage, heaving phenomenon, temperature of shrinkage. In this study, we will estimate a field of application for Sealer of injection type for leakage maintenance of construction standard on the waterproofing performance.

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A Basic Study on Evaluation Method and Performance of Membrane Waterproofing Layer (멤브레인 방수층 성능 및 평가방법에 관한 기초적 연구)

  • 오미현;권시원;강효진;정희원;최인성;오상근
    • Proceedings of the Korean Institute of Building Construction Conference
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    • 2003.05a
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    • pp.17-21
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    • 2003
  • This study is mainly acceptive for physical material performance than waterproofing layer performance on the external condition after construction. The reason are legalized only for material performance duality standard even though it is existed waterproofing materials for membrane. In actuality, waterproofing layer are greatly occurred in performance a decreased developing essential element that are human footprints as a result physical perimeter environment after construction and on the construction. As the result, this present paper purpose for evaluation and performance of the membrane waterproofing layer on the construction.

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