• Title/Summary/Keyword: Waterproof material

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Paper Manipulation Techniques for Garments and Their Characteristics (종이 의상을 위한 소재 변형 기법과 그 특성 분석)

  • Kim, Yong-Sook
    • The Research Journal of the Costume Culture
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    • v.19 no.4
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    • pp.851-862
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    • 2011
  • The purposes of this study were to identify the material manipulation techniques for paper garments and their characteristics. Reference books or articles were reviewed and catalogues from paper garments exhibition or show, brochures from Paper Museums, and internet sites of paper fashion designers were selected for analysis. Paper has much similarity with natural cellulose textiles in appearances and contents but has much distinct differences in their physical characteristics such as strength, durability, washability, and resilience, and could be treated as one category of textiles. Paper garments were developed with practicality and functionality for the poor and Buddist monks at first but progressed into more aesthetics later for the rich. Paper garments could be divided into 4 categories of garments made of paper, paper thread fabric or knit, modified paper with wanter, and beaten bark of mulburry bush. Paper can be manipulated by coloring & cutting, bonding, or quilting and bonding or quilting can reenforce the strength of paper but cannot increase flexibility. Paper manipulated by weaving or knitting has very similar physical properties as cotton or linen and ideal for summer textiles. Paper can be manipulated with water to make a paper paste and bodice can be moulded with paper paste or Joomchied. Also we can express beautiful patterns on the surface of paper by washouting. Konnyaku paste or lacquer can be used to make paper garments to be waterproof.

Development and Application of Unit Table Form using Euro Form for High-rise Building Construction (연질 및 경질 초속경도막방수재를 복합화한 옥상노출방수공법에 관한 실험적 연구(구조물 거동 대응성))

  • Choi, Eun-Kyu;Seo, Hyun-Jae;Kim, Bum-Soo;Lee, Jung-Hun;Song, Je-Young;Oh, Sang-Keun
    • Proceedings of the Korean Institute of Building Construction Conference
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    • 2017.11a
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    • pp.141-142
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    • 2017
  • New waterproofing technologies have emerged in the field of building waterproofing due to the recent diversification of the size and type of structures, the enhancement of required performance, and the diversification of new technologies (such as materials and methods)(Sheet waterproofing material, coating waterproofing material) is reduced, and composite waterproofing materials that utilize mutual benefits are widely used by compounding them (sheet+coating film, coating film+sheet). However, it is true that there is no evaluation method that can verify these composite waterproof materials, which is the most widely used at present, but the KS standard only specifies tests for individual materials However, there is a situation in which the countermeasures without a test method for composite waterproofing become sudden.

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Study on the Application of Site for Exposure Type of Complex Waterproofing Method with Liquefied Waterproof using of Vertical Type Reinforcing Sheet Material Reinforced Sheet Rising System in the Roof Tops (돌기 시스템을 이용한 입체보강형시트의 옥상노출복합방수공법 적용에 관한 재료 및 공법적 연구)

  • Oh, Sang-Keun;Son, Mum-Se;Kim, Jin-Seong;Yeo, In-Soo
    • Journal of the Korea Institute of Building Construction
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    • v.6 no.4 s.22
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    • pp.69-75
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    • 2006
  • It often happen water leakage that roof membrane have a poor condition such as direct exposed to rain, ultraviolet lays, temperature change compare with other part of waterproofing. There are difficult to maintain the quality of waterproofing and durability due to use only few waterproofing materials in practical in spite of development and use the various waterproofing material as solution of these poor condition. Therefore, in this thesis, I would like to know the property to apply field and suggest other method to develop for this waterproofing method to adopt various field condition for roof tops, as searching exposed and complex waterproofing technology for roof tops which is reinforced sheet using rising system have a regular pitch, depth, space.

A Study on Examination of Application in Waste Filled Land and Performance Evaluation as Waterproofing Material by the Spray Water-Soluble Rubber Asphalt (뿜칠형 수용성 고무화 아스팔트 차수재의 성능평가 및 폐기물 매립지 적용성 검토에 관한 연구)

  • 오상근;김형무;정문정;최은수
    • Journal of the Korea Institute of Building Construction
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    • v.1 no.2
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    • pp.165-173
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    • 2001
  • This study examinated the application in construction field and the development of waterproofing material system by the spray water-soluble rubber asphalt to solve the problems of synthetic polymer sheet and gio membrane(A mat sheet of Bentonite) that had been used domestic waterproofing material in advance. As the result of study, characters of study water-soluble rudder asphalt are the follows: 1) The amount of water absorption was '0.06'g and the seepage quality was '0'g in result. 2) The tensile strength was about 30.7kgf/$\textrm{cm}^2 and the elongation was about 72.4% in result. 3) After reliance of temperature test had been ended, the tensile strength was about 72.4kgf/$\textrm{cm}^2 in low temperature and about 30.7kgf/$\textrm{cm}^2 in normal temperature. 4) After acid and alkaline treatment had been ended, the tensile strength was about 19.7kgf/$\textrm{cm}^2$ and about 21.9kgf/$\textrm{cm}^2 in result. 5) After chlorine ion treatment had been ended, the tensile strength was 28.5kgf/$\textrm{cm}^2$ and the elongation was 250% in result. 6) The impact performance was subsided at 1.5m height. 7) After promotion weathering had been ended, the tensile and elongation was about 26.0kgf/$\textrm{cm}^2, 214% in result. So, this study can propose the spray water-soluble rubber asphalt to satisfy the and durability of waste filled land.

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Investigation on Products and Regulation of Flexible Adhesive Rubber Asphalt Type Sealant for the Development of Korea-China Joint Standard (점착유연형 고무아스팔트계 씰재의 한중 공동 품질관리 규정 개발을 위한 제품 및 기술기준 현황 조사)

  • An, Ki-Won;Kim, Dong-Bum;Choi, Su-Young;He, Xing-Yang;Oh, Sang-Keun
    • Journal of the Korean Recycled Construction Resources Institute
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    • v.7 no.4
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    • pp.323-332
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    • 2019
  • Non-curable rubberized polymer asphalt waterproof coating materials in Korea and China are manufactured without advanced quality control techniques and common standard, And they are exposed consistent water leakage problems. Import and application of Korean waterproofing products and installation methods is difficult in the present situation as the Chinese standard(JC/T 2428) is different in nature with the Korean counterpart products, And quality assurance is inevitable based on mutual standards. In order to resolve this issue, alternatives such as using standards provided by the ISO (International Organization for Standardization) are generally employed, but there is no such ISO standard as a waterproof material for non-curable rubberized polymer asphalt material. Furthermore, it is unreasonable to develop the ISO standard for rubber asphalt seals for exchange in terms of time and cost. This study proposes that the establishment of a quality standard that can be applied for both countries will be required via an joint international standard that outlines the properties of materials if applied in mutual trade exchange.

Development of Perfluoroalkyl Derivative for $Cr^{3+}$ Adsorbent Promotion Process (3가 크롬 흡착 증진용 과불소 알킬유도체 제조 및 적용공정 개발)

  • Shin, Jong-Sub;Kum, Chang-Hun;Yun, Jong-Kuk;Park, Il-Kyu
    • Clean Technology
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    • v.14 no.3
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    • pp.193-203
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    • 2008
  • A surfactant is used to assist the effect of cleaning, dispersibility and adhesion during leather manufacturing process. Existing surfactant for that process includes many hydrophilic groups that may cause problem such as stain, bad water resistance and poor durability, etc. It is potential problem to make high-performance property for future leather market. In this study, we have synthesized the fluorinated surfactant of which property decreases surface tension, increases dispersion, cleaning effect and the better chrome absorption by the high bond energy of C-F to complement weakness that the present alkyl derivative surfactants have. Using fluorinated surfactant, we can confirm that dispersion is increased, chrome absorption ratio is augmented with high osmosis and coherence, chrome content in the tanning waste water is reduced, BOD and COD contents are diminished and physical characteristics are improved.

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A Study on the Application and Grouting Effects of Akali-Silicasol Grout Material from Field Test (현장시험을 통한 알칼리성 실리카졸 주입재의 적용성 및 주입효과에 대한 연구)

  • Kim, Younghun;Lee, Jinkyu;Yang, Hyungchil;Chun, Byungsik
    • Journal of the Korean GEO-environmental Society
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    • v.13 no.8
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    • pp.5-13
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    • 2012
  • This research have investigated the application and the injection effect of the alkaline silicasol grouting materia (which is) recently developed. To compare the engineering characteristics of the alkaline silicasol which is formed with 3D-gel and the sodium silicate, it have studied the strength and environmental effects through the laboratory test, and field application was investigated with a review of the injection effect and waterproof through the field test. As a result of the laboratory test, unconfined compression strength of alkaline silicasol was 5 times more than sodium silicate. As a result of the leaching test, a total amount of the eluviated elements was very small, it considered the environment-friendly material. As a result of the field test, considerable reduction of the coefficient of permeability at the hydraulic layer was confirmed, and it could secure that the coefficient of permeability showed a lower than standard value of $10^{-5}cm/sec$.

Performance Study of High-Performance Synthetic Supporting Materials by Real-Scale Tests (실대형 시험을 통한 고성능 합성지보재의 성능 고찰)

  • Kang, Tae-Ho;Chang, Soo-Ho;Choi, Soon-Wook;Lee, Chulho
    • Tunnel and Underground Space
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    • v.31 no.6
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    • pp.428-439
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    • 2021
  • A spray-on membrane is a material composed of a polymer, and is a spray-type material that is expected to be able to replace materials such as existing shotcrete or sheet membrane for support or waterproofing purposes. In the previous studies, it is expected that the thickness of the support material such as shotcrete can be reduced if the spray-on membrane is additionally installed on the existing cement-based support materials. In this study, a three-point bending test was performed by a spray-on membrane on the high-performance shotcrete on the outside, and comparison was made between the case where high-performance shotcrete and a spray-on membrane were installed. As a result of comparing the values calculated through the standard test and the real-size bending test, there was no significant difference in terms of flexural strength, but it was found that there was a difference in flexural toughness.

A Study on the Environmental control methods Expression in Korean Traditional Residence - Focusing on the courtyard-type - (한국전통 주거건축에 나타난 환경조절방식에 관한 연구 - 중정형을 중심으로 -)

  • Lee, Sun-Min;Hur, Bum-Pall
    • Korean Institute of Interior Design Journal
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    • v.19 no.3
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    • pp.128-135
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    • 2010
  • In this paper, traditional residential architecture in South Korea appear to approach environmental regulation as part of ecological architecture of regional climate controlled environment, according to the characteristics and spatial arrangement, and material to the environment was described as a controlled manner. The scope of this study was not large scale housing construction from traditional chusagotaek, yunjeunggotaek, yangjindang, dokrakdang target was the case. Focusing on examples extracted from Korea first eco-friendly characteristics of traditional residential architecture is an extension of nature to explore space and yard space, and South Korea by way of environmental control that appears in traditional architecture, waterproof, moisture, solar radiation, sunlight, ventilation and air Attributes such as environmental regulation and environmental regulation of space, place and manner of materials were described. Korea's research through more traditional residential architecture of the environmental control and a wide range of environmentally friendly eco-construction was that appeared natural to use energy efficiently, it had been available. Later appeared on the Korea traditional architecture through research on environmental control of environmentally friendly ways to navigate and take advantage of the elements, through continuous research and eco-friendly construction to realize the traditional South Korea could provide a prototype of the modern, I thought I'd had.

Evaluation of Mechanical Properties and Durability of Fabric Concrete Binder for Emergency Repair (기상재해 대응 긴급보수용 패브릭 콘크리트 혼합물의 역학적 특성 및 내구성능 평가)

  • Jeon, Sang-Min;Jo, Sung-Mun;Oh, Ri-On;Kim, Hwang-Hee;Cha, Sang-Sun;Park, Chan-Gi
    • Journal of The Korean Society of Agricultural Engineers
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    • v.62 no.4
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    • pp.23-31
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    • 2020
  • Recently, meteorological disasters have been increasing by climate change, excessive rainfall, and landslide. The purpose is to develop new fabric concrete that can prevent and recover from damages because some of areas are vulnerable to meteorological disaster. Specifically, this technology can minimize time and space constraint when repairing the concrete structure and installing a formwork. The structure of fabric concrete is a mixture of fabric concrete and a high-speed hardened cement, Silica sand, wollastonite mineral fiber, fabric material and waterproof PVC fabric. In this study, the ratio of mechanical properties and durability of the fabric concrete mixture was evaluated by deriving the binder: silica sand mix ratio of the fabric concrete mixture and substituting part of the cement amount with wollastonite mineral fiber. Best binder in performance evaluation: Silica sand mix ratio is 6: 4 and the target mechanical performance and durability are the best when over 15% wollastonite binder is replaced by silicate mineral fiber.