• Title/Summary/Keyword: Waterproofing Performance

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A Study on the Waterproofing Performance of Waterproofing Methods for PHC-W Earth Retaining Wall Based on Pressure Chamber Test (PHC-W 흙막이 공법의 차수방안에 관한 차수성능확인을 위한 모형 압력 수조 실험 연구)

  • Choi, Yongkyu;Johannes, Jeanette Odelia;Yun, Daehee;Kim, Chae min;Jeon, Byeong Han
    • Journal of the Korean Geotechnical Society
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    • v.33 no.12
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    • pp.115-125
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    • 2017
  • PHC-W earth retaining wall could be constructed continuously. Various retaining wall methods such as C.I.P. etc. method require separate waterproof method. However, the PHC-W retaining wall method prevents leakage of groundwater by inserting a waterproofing material at connection part between 2 PHC piles. In this study, the experimental study on 3 waterproofing method for PHC-W retaining wall was conducted at the model pressure chamber. In the method using textile with 1-liquid type and 2-liquid type urethane, rapid leak occurred at the pressure of 120 kPa and 140 kPa or more. In the method of textile with grouting, rapid leak occurred at the pressure of 120 kPa or more, however, in this method, the rapid leakage happened at the top part and the bottom part reinforced with urethane.

A Study on the Chemical Integration between Coating Sheets of Complex Waterproofing Method Using Modified Amine-Treated Nonwoven Fabric (변성아민 처리된 부직포를 이용한 복합방수공법의 도막·시트 간 화학적 일체화에 관한 연구)

  • Kim, Sun-Do;Kim, Jin-Sung
    • Proceedings of the Korean Institute of Building Construction Conference
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    • 2017.11a
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    • pp.118-119
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    • 2017
  • The combined waterproofing method is an excellent method to overcome the disadvantages of the single waterproofing method by composing two or more materials to complement each other, but it is a method that can cause defects such as separation and peeling between materials due to the heterogeneity of the applied two materials. In order to improve this, in this study, we aimed to develop a technology for inducing chemical unification between materials through a urea reaction with a coating material applied on the lower side by laminating a nonwoven fabric treated with a modified amine on the back surface of the sheet material, The adhesion performance test was carried out with the presence or absence of denatured amine treated nonwovens as variables. As a result of the test, it was confirmed that the adhesion performance of the specimen to which the modified amin - treated nonwoven fabric was applied was improved by about 60% or more as compared with the specimens not having the denatured amine treated specimen.

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An Experimental Study on the Roof Exposure Waterproofing Method of Tenon Jointing Type used Shiplap Rubberized Asphalt Color Sheet (반턱 고무 아스팔트 칼라 시트를 이용한 접합부 맞춤식 옥상 노출 방수공법에 관한 실험적 연구)

  • Lee, Jung-Hoon;Lee, Sun-Gyu;Kwak, Hyo-Ya;Oh, Sang-Keun
    • Proceedings of the Korean Institute of Building Construction Conference
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    • 2008.05a
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    • pp.73-77
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    • 2008
  • In this study, we would like to study on the application of roof exposure waterproofing method of joint stability through shiplap rubberized asphalt color sheet to complement problem of fracture, exfoliation and water leakage by existing roof exposure sheet waterproofing material joint weakness. Accordingly, examined basis performance and stability for joint that shiplap rubberized asphalt color sheet through test of that tensile strength, bonding strength, water permeability after bonding, peel resistance after bonding, lengthen resistance after bonding and hang resistance after bonding. The results of this study, waterproofing method to using shiplap rubberized asphalt color sheet is judged to solved fracture, exfoliation and water leakage problems happened in joint by problem was joint of exposure sheet by minimizing gap of joint being integration by shiplap.

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Application and Development of Protect Technique for waterproofing Reinforced Concrete Bridge Decks by Latex-Modified Mortar (라텍스 모르타르를 이용한 콘크리트 교면 방수층 보호 공법 개발 및 적용에 관한 연구)

  • Han, Sang-Il;Lee, Won-Young;Kim, Jae-won;Kang, Seung-Hee;Cha, Dong-Hwa;Kim, Jin-Man
    • Proceedings of the Korean Institute of Building Construction Conference
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    • 2009.11a
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    • pp.175-178
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    • 2009
  • This study is thing for construction properties that protect about damage of waterproofing course that is problem in asphalt pavement and latex modification concrete pavement. It is thing about new method of construction and develop protecting material of waterproofing. 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 construction.

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

  • Choi, Su-Young;An, Ki-Won;Jang, Duk-Bae;Kim, Jong-Phil;Oh, Sang-Keun
    • Proceedings of the Korean Institute of Building Construction Conference
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    • 2016.10a
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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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The Study on the Safety Adhesion Test of Wet Surface for Waterproofing and Anti Corrosion Materials of Water Supply Facility (수처리 시설물에 적용되는 방수·방식재의 습윤면 부착 안정 성능평가방법에 대한 연구)

  • Choi, Su-Young;Kim, Dong-Bum;Park, Jin-Sang;Park, Wan-Goo;Kim, Byoung-Il;Oh, Sang-Keun
    • Proceedings of the Korean Institute of Building Construction Conference
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    • 2017.05a
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    • pp.137-138
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    • 2017
  • The Waterproofing and Anti corrosion materials applied to the water supply facility did not consider environment of water supply facility, thus defects occurred consistently on the site. In this study, it suggests safety adhesion test of wet surface and have a test for safety adhesion performance.

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Study On Information Sharing System for Waterproofing Performance for Concrete structure (콘크리트 구조물의 누수예방을 위한 방수기술 공유시스템 구축방안에 관한 연구)

  • Kang, Hyo-Jin;An, Ki-Won;Kim, Soo-Yeon;Oh, Sang-Keun
    • Proceedings of the Korean Institute of Building Construction Conference
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    • 2017.05a
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    • pp.270-271
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    • 2017
  • In light of the recent media outlets revealing structural waterleakage problems, construction workers, design planners and related enterprises are investing more effort towards forming a solution plan for these issues. This study proposes the structuralization of a information network system that allows the selection and discussion of optimal measures for waterproofing related techniques and expert informations online in a realtime setting.

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A study on the improvement for performance of floor finishing materials using poly urethane with water reacting urethane (수반응 우레탄과 바닥용 경질 폴리우레탄을 이용한 바닥마감재의 성능향상에 관한 실험적 연구)

  • Park Jin-Sang;Kang Hyo-Jin;Oh Sang-Keun
    • Proceedings of the Korean Institute of Building Construction Conference
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    • 2006.05a
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    • pp.43-46
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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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Insulation Performance Evaluation for Waterproofing Materials that Uses Air Cap Sheet (에어캡시트를 이용한 단열 보완형 방수공법의 단열성 평가)

  • Ma, Seung Jae;Lee, Jong Yong;Choi, Sung Min;Oh, Sang Keun
    • Proceedings of the Korean Institute of Building Construction Conference
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    • 2015.05a
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    • pp.175-176
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    • 2015
  • Insulation in buildings are one of the crucial factors for energy reduction, and depending on the application areas and properties of the insulation requirements, various different types of insulation materials are being developed, produced, and used. Amongst these is the aircaps often used as packing materials. Because of their porous nature, they are highly efficient in preventing heat and are consequently used overseas often as insulation materials and as part of cold water concrete insulation curing method. This paper studies the recently developed usage of aircaps in waterproofing materials and evaluated their performance as supplementary insulation materials.

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Confirmation on Basic Adhesion Strength Property Testing of Domestic Rubber Asphalt Waterproofing Sealant in Accordance JC/T 2428 Chinese Industrial Standard for the Establishment of Korea-China Joint Quality Standards (고무 아스팔트 씰의 한중 공동 품질기준 제정을 위하여 국내 재료를 중국업계표준 JC/T 2428의 부착강도 적용시 기본물성 확보 여부 확인)

  • An, Ki-Won;Oh, Sang-Keun
    • Proceedings of the Korean Institute of Building Construction Conference
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    • 2019.11a
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    • pp.226-227
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    • 2019
  • Installation and usage methods are currently different between China and Korea for the same rubber asphalt waterproofing sealant. Quality verification is not properly carried out in this situation, so it is necessary to secure reliability in order to export domestic materials to China. In this study, rubber asphalt waterproofing sealant used as injection-type leakage repair material was tested in accordance to adhesion strength quality test method outlined in the JC/T2428 Chinese Industrial Standard to confirm the basic performance is compliant or not.

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