• Title/Summary/Keyword: Waterproofing Performance

Search Result 224, Processing Time 0.028 seconds

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
    • /
    • 2009.05b
    • /
    • pp.225-229
    • /
    • 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.

  • PDF

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
    • /
    • 2013.05a
    • /
    • pp.303-304
    • /
    • 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.

  • PDF

Experimental Study on Reinforcing Fiber for Civil Engineering used for Waterproofing Protection and Root Resistance Performance (방수보호재 및 방근재로서의 활용을 위한 토목용 보강섬유의 실험적 연구)

  • Kim, Bum Soo;Lee, Jung Hun;Song, Je Young;Song, Young-Chan;Kim, Yong-Ro;Oh, Sang Keun
    • Proceedings of the Korean Institute of Building Construction Conference
    • /
    • 2017.05a
    • /
    • pp.67-68
    • /
    • 2017
  • This paper discusses the application of civil structure use reinforcing fiber mixed with concrete to be used as protection layer of waterproofing material and root resistant layer installed in below-grade parking lot upper slab of residential building. A performance evaluation under the prescribed method outlined in KS F 4938 was used for this new material. The testing results showed that the fiber reinforcement can be used to strengthen the protection for the waterproofing material. Also, plants that were planted in June 2016 have not yet penetrated the specimens used for root resistance testing. The domestic root resistance performance testing usually covers the period of 2 years, thus further observation to make any conclusion about the root resistance property is required.

  • PDF

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
    • /
    • 2002.11a
    • /
    • pp.17-22
    • /
    • 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).

  • PDF

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
    • /
    • v.10 no.4
    • /
    • pp.95-103
    • /
    • 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
    • /
    • 2017.05a
    • /
    • pp.77-78
    • /
    • 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.

  • PDF

A Study on Trend of Tensile Properties with Ratio of Water Mixture in Hydroponic Polyurethane Waterproofing Materials (수경화성 폴리우레탄 방수재의 물 혼입량에 따른 인장성능 변화 추이 연구)

  • Park, Wan-Goo;An, Hyun-Ho;Kim, Sun-Do;Kim, Dong-Bum;Park, Jin Sang;Oh, Sang-Keun
    • Proceedings of the Korean Institute of Building Construction Conference
    • /
    • 2016.05a
    • /
    • pp.215-216
    • /
    • 2016
  • Urethane waterproofing materials which currently being used most commonly in the Korean domestic market have high applicability and construct layers without forming any joints, but under the influence of low temperature and low humidity, as well as the thickness of the applied layer, the curing time of this material may become extended in construction sites. To resolve these issues, a proposed method of using water-hardening type of polyurethane waterproofing materials are being developed. However, there currently lacks any standards or evaluation methods on determining an optimal mixture ratio of water for the water-hardening polyurethane waterproofing materials. Therefore, for the establishment of a board applicability of the water-hardening polyurethane waterproofing methods in construction sites, this study objectively analyzes the changes in the performance of these materials depending on the changes of the water mixture ratio and attempts to procure the optimal ratio on the basis of forming a provisionary standard.

  • PDF

A Study on the Analysis of 3 Dimensional Substrate Behaviour of Complex Environmental Deterioration and the Analysis of Results (방수재료 및 공법의 내구성 평가를 위한 복합열화분석용 3차원 거동대응 시험결과)

  • Song, Je-Young;Seo, Hyun-Jae;Choi, Eun-Kyu;Lee, Jung-Hun;Kim, Byoungil;Oh, Sang-Keun
    • Proceedings of the Korean Institute of Building Construction Conference
    • /
    • 2018.11a
    • /
    • pp.189-190
    • /
    • 2018
  • KS standards mostly relate to single component material evaluation, so in cases of underground structure environments, most cannot predict the existing composite forms of deterioration, resulting in the applied waterproofing materials becoming unable to respond to these damaging factors. Current domestic waterproofing market in Korea mainly uses single-ply waterproofing materials comprised of coatings or waterproof sheets and two or more-ply composite waterproofing methods. In order to evaluate these types of composite waterproofing systems, a new test equipment and method that incorporates various deterioration conditions (joint displacement, chemical exposure, water pressure etc) was developed. In a comparison testing, the results showed that flexible type materials have higher response performance towards joint displacement than the hardened material.

  • PDF

A Performance Test Method of Waterproofing System to Evaluate the Responsiveness to the Movement of Box Culvert Structure for Underground Electronic Power Facility (Mock-Up Test Method of Waterproofing Layer to Response 10 mm Movement of Expansion Joint) (지하 전력구조물의 거동에 대한 방수층의 대응 성능 평가 방법 개발 (10 mm 거동 대응형 방수시스템 Mock-Up 시험 방법))

Performance Evaluation System for Construction Environment of the Unified Waterproofing-Root Resistance Membrane layer of the Green Roof System (인공지반 녹화용 방수방근 복합공법의 시공환경을 고려한 성능평가 시스템 연구)

  • Park, Chang-Hwa;Oh, Sang-Keun;Lim, Nam-Gi
    • Journal of the Korea Institute of Building Construction
    • /
    • v.11 no.2
    • /
    • pp.189-199
    • /
    • 2011
  • Installation of a proper root barrier in a green roof system is very important in order to protect the concrete slab of roof and the root penetration in the waterproofing layer. To select the proper root barrier materials and methods, it is necessary to understand the environmental conditions affecting the waterproofing-root barrier system in green roof construction site. Therefore, we suggested as the environmental performance indexes four kinds of performance requirements; root penetration, chemical attack by chemical agent or fertilizer, load impact by soil depth and size of plant, and water pressure. The related four test methods were suggested for the inspection of these performance indexes. In this research, we could suggest for kinds of test methods as standard test methods to evaluate the environmental performance of waterproofing-root barrier for greening roof system.