• Title/Summary/Keyword: Waterproofing

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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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Tensile Adhesive Chracteristics of Waterproofing System for Concrete Bridge Decks (교량 바닥판 조건에 따른 교면방수 시스템의 인장접착 특성)

  • Lee, Byung-Duck;Shim, Jae-Won;Park, Sung-Ki;Kim, Kwang-Woo
    • International Journal of Highway Engineering
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    • v.4 no.3 s.13
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    • pp.15-23
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    • 2002
  • The waterproofing system's performance is known to show a determing by complex interaction of material factors, design details, and the quality of construction, and the waterproofing integrity of waterproofing membranes is determined by the bond to the deck and the amount of damage to the waterproofing membrane. In this research, the basic properties of waterproofing membranes on market and the tensile adhesive chracteristics of waterproofing systems of concrete bridge deck have also been investigated in the view of the damages frequently reported from job site. For the tensile adhesive strength of sheet waterproofing membranes, the results after asphalt concrete paving tends to increase more than before those. The results of the liquid waterproofing membranes are upside-down, and the more concrete has strength, the more strength of tensile adhesive increase. The ambient temperature of asphalt concrete when application of the waterproofing membrane has considerable influence on the performance of waterproofing system. As described above, waterproofing system can be influenced by several factors. If they are not considered under construction, the overlooking will cause the damages of pavement and waterproofing system after traffic opening.

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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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Tensile Adhesive Characteristics of Waterproofing System for Concrete Bridge Decks (바닥판 조건에 따른 교면방수 시스템의 인장접착 특성)

  • 이병덕;박성기;심재원;정해문;김광우
    • Proceedings of the Korea Concrete Institute Conference
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    • 2002.05a
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    • pp.373-378
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    • 2002
  • The waterproofing system's performance is known to show a determining by complex interaction of material factors, design details, and the qualify of construction, and the waterproofing integrity of waterproofing membranes is determined by the bond to the deck and the amount of damage to the waterproofing membrane. In this research, the basic properties of waterproofing membranes on market and the tensile adhesive characteristics of waterproofing systems of concrete bridge deck have also been investigated in the view of the damages frequently reported from job site. As a results of tensile adhesive strength of waterproofing system, tensile strength is decrease with surface moisture contents except for inorganic-elastomeric liquid waterproofing membrane, and increase with strength of deck slab. Also tensile adhesive strength is generally increase in case of moisture curing of specimen because of pore structure and surface leveling. The after asphalt concrete paving tends to increase more than before those. The results of the liquid waterproofing membranes are upside-down, and the more concrete has strength, the more strength of tensile adhesive increase. The ambient temperature and the rolling temperature of asphalt concrete when application of the waterproofing membrane has considerable influence on the performance of waterproofing system.

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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 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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Study on the injecting technology of waterproofing layer for water leakage repair of roof (건축물 옥상방수층의 누수보수를 위한 방수층재형성 주입기술에 관한 연구)

  • 배기선;조일규;장혁수;곽규성
    • Proceedings of the Korean Institute of Building Construction Conference
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    • 2002.11a
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    • pp.23-27
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    • 2002
  • Waterproofing is one of the important factor to improve performance of building elements. But existing repair system for waterproofing have many problems like a damage of waterproof layer due to movement of concrete substrate, blistering effect and moisture condition. So waterproofing layer can not play an important part to improve waterproofing function and performance of building. Therefore, new waterproofing system to solve these problems of existing waterproofing system is developed. In this paper, new waterproofing system in water-leakage repair for remodeling is introduced

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Quality Control Recommendation with Waterproofing Membrane Type of Waterproofing System for Concrete Bridge Decks (계열별 교면 방수시스템의 품질관리 지침(안) 고찰)

  • 이병덕;박성기;심재원;정해문;김광우
    • Proceedings of the Korea Concrete Institute Conference
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    • 2002.05a
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    • pp.367-372
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    • 2002
  • The waterproofing systems of concrete bridge deck are installed under the complex circumstances, such as traffic loading, weather, and the condition of the deck concrete. For assuring the effectiveness of waterproofing system, the materials and the construction method and timing ought to be suitably selected with the procedures of waterproofing and the system has to ensure the economical performances. First of all, we discussed whether the quality and performance criteria for highway bridge deck are resonable or not through the investigation of domestic and foreign criteria. The basic properties of waterproofing membranes on market and the performance of waterproofing systems of concrete bridge deck have also been investigated in the view of the damages frequently reported from job site. In this way, the causes and measures of damages, the guidelines of design, construction, quality control, and maintenance, the test methods and criteria of membranes and waterproofing system, are proposed.

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A Study on the Blind Type of Waterproofing Layer of Wheel Tracking of Test Method and Valuation on Working of Live Load (이동하중이 작용하는 비노출 방수층의 윤하중 시험방법 및 평가에 관한 연구)

  • Eom Deok-Jun;Seon Yun-Suk;Kwon Si-Won;Oh Sang-Keun
    • Proceedings of the Korean Institute of Building Construction Conference
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    • 2005.11a
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    • pp.1-5
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    • 2005
  • There are a lot of problem about waterproofing membrane coating for concrete deck of bridge and waterproofing sheets for concrete of deck of bridge because it couldn't confirm waterproofing's defeat after construction. These problems make a waterproofing material damage and concrete deck of bridge damage. So It needs a lot of money for repair work and reinforcement work. Therefor the structure slab of using waterproofing material protect invasion of water. Also, Concrete deck of bridge need a endurance permeability for the reduction repair payment. In this study, An experimental study on the quality standardization test method waterproofing layer on working of live load

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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.