• Title/Summary/Keyword: Waterproofing

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An Experimental Study of the Dried and Unified Execution Technology for the Sub-Organization of the Green Roofs System using the Panel of Block Type (블록형 패널을 이용한 옥상녹화 하부시스템의 건식화 $\cdot$ 일체화 시공기술에 대한 실험적 연구)

  • Moon, You-Seok;Jang, Sang-Muk;Hong, chae-ho;Cha, Yun-Jung;Oh, Sang-Keun
    • Proceedings of the Korean Institute of Building Construction Conference
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    • 2007.11a
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    • pp.119-123
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    • 2007
  • Recently, the green roofs market is active, but most constructors use former waterproofing method. So there are a lot of problems in the sub-organization of the green roofs system. I studied to use the block panel for the sub-organization of the green roofs system and I tested about the effectiveness of waterproofing, root barrier, drainage, and insulation. I have not found any problems about waterproofing, root barrier, drainage, and insulation in the results. The sub-organization of the green roofs system using the block panel is effective for waterproofing, root barrier, drainage, and insulation. We can apply it to the dried and unified execution technology.

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An Experimental Study on the Roofing Waterproofing Method Combined Soft and Hard Rapid Hardening Membrane (연질 및 경질 초속경도막방수재를 복합화한 옥상노출방수공법에 관한 실험적 연구(균열 대응성))

  • Choi, Eun-Gyu;Seo, Hyun-Jae;Lee, Jung-Hun;Lee, Sun-Gyu;Song, Je-Young;Oh, Sang-Keun
    • Proceedings of the Korean Institute of Building Construction Conference
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    • 2018.11a
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    • pp.177-178
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    • 2018
  • In the case of conventional ultra-fast hardness membrane waterproofing material (polyurea, etc.), damage such as breakage or tearing occurred frequently at the time of cracking of the surface after waterproofing. In this study, it is suggested that a waterproof layer can not cope with the occurrence of cracks at the same time by applying the soft type waterproofing material of soft type at the lower part of the construction method (securing of elongation) To minimize the possibility of water resistance.

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A Study of proposal for Waterproofing technology proper to the underground Concrete Structure (국내 지하구조물에 적용 가능한 방수 기술 제안 연구)

  • Seon, Yun-Suk;Kim, Jin-Sung;Park, Jin-Sang;Kwon, Shi-Won;Oh, Sang-Keun
    • Proceedings of the Korea Concrete Institute Conference
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    • 2006.11a
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    • pp.409-412
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    • 2006
  • The goal of waterproofing materials and construction method used for underground structure can be attained only when construction is done perfectly free of laitance, moisture and foreign substances on concrete surface. However, construction engineers agree that it is difficult to perfectly carry out such work in practice and realization of perfect waterproofing for underground structures is impossible in reality. Therefore, this study is to examine and explore waterproofing materials and construction method completely meeting environmental impacts that underground structures receive and thereby suggest waterproofing technology applicable to underground structures, in order to prevent problems caused by leakage for underground structures.

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An Experimental Study on the Outside Waterproofing Construction Method of Underground Structures Using the High-Adhesion and High-Elasticity of Unvulcanized Sheet (비가황 고점착.고탄성의 균질시트를 이용한 지하 외방수공법에 관한 실험적 연구)

  • Shao, Xu-Dong;Kim, Seon-Hwa;Kwon, Ki-Joo;Kwak, Kyu-Sung;Oh, Sang-Keun
    • Proceedings of the Korean Institute of Building Construction Conference
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    • 2009.05b
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    • pp.225-229
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    • 2009
  • It has been found that existing detects at the junction between waterproofing layer as well as the material and the surfaces of the construction when waterproofing sheet is employed in the currently used unground structures waterproofing technology, causing a series of problems such as the high cost to the maintenance for leakage and the durability. The purpose of this study is about reducing the waterpoofing defects in underground structures. consequently, the homogeneous sheet which has some quality such as the unvulcanizate, high-adhesion and high-elastic was examined on physical properties. As a test result, it was confirmed to have satisfied performance about the ks. However, it must be continued to study through mock-up test for confirming of site application.

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A Study on Performance Standards of Quality Improvements of Self-adhesive Waterproofing Sheets by Materials (계열별 자착형 방수시트의 성능 품질기준 개선안에 관한 연구)

  • Park, Jin-Sang;Jeon, Jong-Su;Song, Je-Young;Bae, Kee-Sun;Oh, Sang-keun
    • Proceedings of the Korean Institute of Building Construction Conference
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    • 2013.05a
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    • pp.303-304
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    • 2013
  • The field application through the quality control of self adhesive rubberized asphalt waterproofing sheet was regulated by KS F 4934 of Korea Standard in 2003. However, the regulations that the different material properties of self-Adhesive waterproofing sheets are difficult to quality control on the standard. Therefore, this research was performed for of quality control all affiliations of self-adhesive waterproofing sheet through basic properties test and proposed quality standard revised bill in KS F 4934.

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Necessity for Performance Grade for Residential Structure Waterproofing based on Application Areas - Using AHP Methodology - (공동주택 방수 시공 부위에 따른 성능등급의 필요성 확인 - AHP 분석을 중심으로 -)

  • An, Ki-Won;Oh, Kyu-Hwan;Oh, Sang-Keun
    • Proceedings of the Korean Institute of Building Construction Conference
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    • 2021.05a
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    • pp.21-22
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    • 2021
  • Domestic residential buidling grading is currently comprised of 5 fields; sound-proofing, structure, ambient condition, living environment and fire-proofing. However, factors the take up most of the civil complaints are related to leakage, and waterproofing is not listed as part of the grading system. In particular, the Ministry of Land and Transport claims that the most crucial problems are leakage related in residential structures. Therefore, this study proposes to provide such grading system for waterproofing by AHP methodology based on waterproofing application locations in residential structures.

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Limitations of Structural Behavior Response Performance Evaluation for Waterproofing Materials Under Non-Constrained Conditions and Suggestions for Future Improvement Measures (방수재료의 거동대응성능 시험시 비 구속조건에서의 구조물 거동 대응성능 평가의 한계와 향후 개선 방안 제안)

  • An, Ki-Won;Oh, Gyu-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.212-213
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    • 2021
  • As structure and the waterproofing material are compressed through the backfilling process after the waterproofing material is installed on the underground structure at the actual site, there is a difference between the behavioral response force of the waterproofing material in the compressed state and the behavioral response force in the non-constrained state. In this regard, we will analyze the limitations of the current structural behavioral response evaluation and suggest an improvement plan so that the future test and evaluation environment can be evaluated under conditions similar to the field.

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An Experimental Study on the Cement-Polymer Coatings Waterproofing Method Composed with Waste Tire Chip and Waste Glass powder (폐타이어와 폐유리 미분말을 소재로 한 무기질 탄성도막 방수공법에 관한 실험적 연구)

  • 김영삼;양승도;이성일;김윤욱;오상근
    • Proceedings of the Korean Institute of Building Construction Conference
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    • 2002.11a
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    • pp.17-22
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    • 2002
  • This Waterproofing Material which mainly consisted of 2 components of waste tire chip powder and waste glass powder. This Study is abut development of waterproofing Material, There is not tried in domestic. The most Motive of this Study wishes to recycle resources and get the economic performance for waterproofing Material The result of this Study is as followings. (1) Dense waterproofing floor is formed between waste tire chip by Coupling Agent(the most effective method to encourage adhesive strength and raise cohesion of material by combination.) (2) Expected to bring effect to shorten construction period at spot application potentially space-time in moisture aspect. Also, shortening effect of construction period and spot work are considered to be gone efficiently selecting pre-mix construction method. (3) This development Waterproofing material has elasticity that nature side compatibility of cement ingredient and plastic Emulsion have when utilize and constructs waite resources (being waste tire chip and waste glass powdered).

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The Selection of Roof Waterproofing Methods using the Analytic Hierarchy Process (AHP) Technique (AHP 기법을 활용한 지붕방수공법 선정에 관한 연구)

  • Choi, Oh-Young;Cho, Hong-Gyu;Kim, Gwang-Hee
    • Journal of the Korea Institute of Building Construction
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    • v.10 no.4
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    • pp.95-103
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    • 2010
  • The purpose of this study is to propose a decision-making technique for selecting waterproofing methods using the Analytic Hierarchy Process (AHP) technique. In this study, a questionnaire survey was given to a group of specialists, which included design specialists, construction specialists, and maintenance specialists, regarding their experience with roof waterproofing methods. The 1st level hierarchy of the questionnaire survey addressed the function, economics, and maintenance of each of the roof waterproofing methods. The rank of 13 items of questionnaire, which is the 2nd level hierarchy of the questionnaire survey, is calculated using Expert Choice Solution. The analysis of questionnaire survey shows that each specialist selects different roof waterproofing methods, and all specialists make much of waterproof performance.

A Study on the Analysis of 3 Dimensional Substrate Behaviour of Complex Environmental Deterioration and the Analysis of Results (복합열화분석용 3차원 거동대응성 시험방법 및 결과분석)

  • Song, Je-Young;Oh, Kyu-hwan;Choi, Eun-Kyu;Lee, Jung-Hun;Kim, Byoungil;Oh, Sang-Keun
    • Proceedings of the Korean Institute of Building Construction Conference
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    • 2017.05a
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    • pp.77-78
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    • 2017
  • Although many waterproofing materials and techniques have been developed and applied, there is still a leakage in concrete structures. The main reason for the failure of waterproofing is due to the lack of consideration of the environmental conditions and the inconsistent performance requirement of the waterproofing materials in response to the complexity of the environmental conditions., and materials that are unsuitable to the environment are still being selected for usage due to their low price. Moreover, there is no valid test assessment for waterproofing materials to be used prior to actual application in the construction site. The development of a testing method and apparatus that can evaluate the composite waterproofing method is proposed in this paper and an interpretation method that can analyze the results of the evaluation.

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