• Title/Summary/Keyword: Waterproofing Performance

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Thermal Insulation Performance of Composite Waterproofing Method of Thermal Supplement Type (단열 보완형 복합방수공법의 단열성능에 관한 연구)

  • Choi, Sung-Min
    • Journal of the Korea institute for structural maintenance and inspection
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    • v.18 no.4
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    • pp.59-66
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    • 2014
  • Insulation of rooftop is one of the major performance to energy-saving construction. Further, waterproofing performance is also important. For such a reason, it is need to develop waterproofing method containing thermal insulation property. This study was wanted to evaluate thermal insulation performance about the composite waterproofing method of thermal supplement type that is developed recently. As a result of waterproofing performance test, every test item was showed over the performance standards of KS (Korean (Industrial) Standards). And the result of thermal insulation performance test, the highest temperature in the styrofoam box was $25.91^{\circ}C$, the bubble sheet box was $17.28^{\circ}C$, the insulation sheet box was $15.47^{\circ}C$ and the waterproofing sheet box of thermal supplement type was $24.11^{\circ}C$. In observations of thermal bridges of sheet's joint, thermal bridges was not identified at the sheet's joint. As a result, composite waterproofing method of thermal supplement type is interpreted to have thermal insulation performance.

A Study on Performance Evaluation of Waterproofing by Thickness of Self-curing Waterproofing Material based Cement (시멘트계 자가치유형 침투성 도포 방수재의 시공 두께가 방수 성능에 미치는 영향 연구)

  • Eom Deok-Jun;Kwon Shi-Won;Kang Hyo-Jin;Oh Sang-Keun
    • Proceedings of the Korea Concrete Institute Conference
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    • 2004.05a
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    • pp.664-667
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    • 2004
  • It may have to establish the definite standard for performance evaluation basis about cementitious waterproofing material in job site that applied the method of construction formed cement waterproof course on concrete surface In present paper shows the effective selection method of waterproof layer of optimum thickness for economic performance as evaluating of the need thickness on waterproof property of penetrating waterproofing material.

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A Research on Suggestion of Performance Grade for each Assessment Items of Self-Adhesive Waterproofing Sheet (자착식형 방수 시트의 평가 항목별 성능등급 제안에 관한 연구)

  • Park, Wan-Goo;An, Ki-Won;Heo, Neung-Hoe;Kim, Yun-Ho;Park, Jin-Samg;Oh, Sang-Keun
    • Proceedings of the Korean Institute of Building Construction Conference
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    • 2012.11a
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    • pp.23-25
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    • 2012
  • Because Self-Adhesive Waterproofing sheet has good constructability, it has been widely used. Also Self-Adhesive Waterproofing sheet is researched based on variety of materials and various of forms. However, producers have recognized about only pass KS quality standard. So, Self-Adhesive waterproofing sheet has been limited about improvement of performance. Therefore, in this research, proposed guideline of Self-Adhesive Waterproofing sheet for disinterested performance grade using probability theory and quality management theory.

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A Study on Performance Test Method of Polyurea Waterproofing System Applied to the Concrete Water Tank (콘크리트 수조에 적용되는 폴리우레아 방수방식 공법의 내구성 향상을 위한 시험 평가 방법에 관한 연구)

  • DO, Kwang-Ku;Song, Je-Young;Kim, Byoungil;Oh, Sang-Keun
    • Proceedings of the Korean Institute of Building Construction Conference
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    • 2020.06a
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    • pp.12-13
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    • 2020
  • Construction projects and buildings are becoming taller and larger, and the size of water tanks of production facilities and high-rise buildings is also gradually increasing. Most large water tanks apply a waterproofing layer to the water tank type concrete structure. The application of polyurea coating materials, which are excellent in water resistance, chemical resistance, physical performance, rapid hardening, and workability is gradually increasing as waterproofing and anticorrosion layer for water tank. As a result, defects such as water leakage and damage to the waterproofing layer are continuously occurring, causing production disruption, setback to users. Therefore, it is required to review suitability through performance verification of the waterproofing and anticorrosion system.

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Anti-Seismic Evaluation of Waterproofing Materials for Positive-Side wall and pile wall of Underground Concrete Structures (합벽구간 및 지하구조물 외벽에 사용되는 방수재료 내진 성능실험방법)

  • Oh, Kyu-hwan;Kim, Soo-Yeon;Oh, Sang-Keun
    • Proceedings of the Korean Institute of Building Construction Conference
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    • 2021.11a
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    • pp.210-211
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    • 2021
  • This study introduces and demonstrates the application of an experimental regime for anti-seismic performance evaluation of waterproofing materials to used for concrete pile walls. Concrete pile walls are subject to high degree of seismic load, and the occurring stress can affect the waterproofing integrity of the structure, but there is currently no existing methodology or standard for evaluating this property of waterproofing materials. To propose and conduct this evaluation, a new testing apparatus was designed and manufactured intended to be able to test an installed waterproofing material's seismic resistance performance.

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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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Study on the Improvement of Waterproofing Performance Rating for the Introduction of Residential Apartment Complex Performance Grade Index (공동주택 성능등급 표시제도 강화를 위한 방수성능 등급 도입에 관한 연구)

  • An, Ki-Won;Cho, Il-Kyu;Oh, Sang-Keun
    • Journal of the Architectural Institute of Korea Structure & Construction
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    • v.34 no.12
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    • pp.41-49
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    • 2018
  • The current housing performance rating system displays the performance rating of the houses supplied by the housing construction company, approved by the Housing Law. This system is intended to provide accurate information to the consumers in the announcement of the tenant recruitment, thereby improving the quality of the housing. This system was revised in January 2005 and implemented from January 2006. It is obligatory for companies with a scale of more than 1,000 households (energy performance rating is over 300 households), but there is currently no content on the waterproofing field. Therefore, this study suggests the revision plan proposes the necessity of the inclusion of the performance grade for the waterproofing field which is not currently implemented in the apartment house performance rating system, and to understand how to secure an adequate living environment. As a result, according to survey results, the performance score based on the difficulty of the maintenance method according to future leaks was selected and the revised system was prepared. Based on this, the performance grade for the virtual apartment was evaluated, and the results show that the performance of various grades is presented accordingly.

A Study on the Physical Properties Change of Waterproofing Membrane Coating by Application of Modified Polymer Primer (개질 폴리머계 프라이머 적용에 따른 도막 방수재의 물리적 특성 변화 연구)

  • Lee, Jung-Hun;Cho, Hong-Bum;Jeon, Hyun-Soo;Park, Ki-Hong;Kim, Jin-Sik;Oh, Sang-Keun
    • Proceedings of the Korean Institute of Building Construction Conference
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    • 2022.11a
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    • pp.191-192
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    • 2022
  • It was intended to evaluate whether the primer affects the physical performance of the waterproofing membrane coating. For this end, the physical performance change of the urethane waterproofing membrane coating was evaluated for urethane-based and polymer-based primers. As a result of the evaluation, it was confirmed that the type of primer may affect the physical performance of the waterproofing membrane coating. In particular, a difference in performance of more than 100% was confirmed in tensile strength and percentage elongation. Through these results, it was confirmed that the selection of the primer was important. In the future, follow-up studies on various waterproofing membrane coatings are needed.

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A study on the evaluation of field application for the waterproofing or corrosion proof construction method, as coating high quality filtration plant with ozone resistance paints of phenol degeneration polyamine (페놀 변성 폴리아민계 내오존도료를 이용한 고도정수처리장의 방수$\cdot$방식 공법에 대한 현장 적용성 평가에 관한 연구)

  • Jung Mun-Jung;Kwon Shi-Won;Oh Sang-Keun
    • Proceedings of the Korean Institute of Building Construction Conference
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    • 2005.11a
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    • pp.33-38
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    • 2005
  • It is applied in the high quality equipment construction by introduction of this high duality treating technology (ozone treating, activated carbon treating, high quality oxidation treating, UV treating etc.)waterproofing or corrosion proof method caused secondary economy damage of operation discontinuance and high quality treating equipment for applying existent waterproofing method that corrosion proof ability (ozone resistance performance, chemical resistance etc.) and abrasion resistance performance by comprehension insufficiency of user and designer. Therefor, In this study, we will analyze problem of waterproofing and corrosion material of existing construction application by high quality treating, and measure physical performance change by various condition. It is required to waterproofing and corrosion system and application of the field valuation.

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Complex Environmental Degradation Resistance Performance Evaluation Method of Membrane Waterproofing Systems for Underground Concrete Structure Joint (지하 콘크리트 구조물 조인트에 대한 멤브레인 방수시스템의 복합 환경 대응 성능 평가 방법)

  • Oh, Kyu-Hwan;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.44-45
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    • 2017
  • There are various national standards designed to test the physical properties of waterproofing materials for the respective countries based on each of their environmental parameters, variables and requirements. The problems of these standard systems can be outlined in the following: (1) there are too many test methods and criteria to satisfy in order assess one waterproofing membrane system, and (2) there is currently no known method to compile the separate testing results to provide a comprehensive report on waterproofing system durability. This paper outlines and compares the performance testing results of various types of asphalt waterproofing membrane systems and discusses the potentials of a complex environmental deterioration analysis method.

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