• 제목/요약/키워드: waterproof

검색결과 476건 처리시간 0.023초

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

  • 김영삼;양승도;이성일;김윤욱;오상근
    • 한국건축시공학회:학술대회논문집
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    • 한국건축시공학회 2002년도 학술.기술논문발표회
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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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AHP 기법을 활용한 지붕방수공법 선정에 관한 연구 (The Selection of Roof Waterproofing Methods using the Analytic Hierarchy Process (AHP) Technique)

  • 최오영;조홍규;김광희
    • 한국건축시공학회지
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    • 제10권4호
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    • pp.95-103
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    • 2010
  • 본 연구는 지붕방수공법 선정에 계층분석기법을 적용하여 의사 결정하는 과정을 제안하는 것이 목적이다. 지붕방수공법에 대한 경험에 대하여 본 연구에서 설계 전문가, 시공 전문가, 그리고 유지관리 전문가 그룹에 설문조사를 실시하였다. 설문조사의 첫 번째 계층은 성능, 경제적, 그리고 유리관리 측면으로 구성하였고, 설문의 두 번째 계층은 13개 항목으로 구성하여 Expert Choice를 이용하여 순위를 계산하였다. 설문 분석결과 각 전문가들은 다른 선택을 하였는데, 모든 분야의 전문가는 방수성능 측면을 가장 중요시 하는 것으로 나타났다.

EVA개질 투명시트와 부직포를 열풍 점융착한 일체형 방수시트를 이용한 터널방수공법에 관한 연구 (A study on the EVA reforming processes transparency sheet and nonwoven warm air point adhesion using of tunnel waterproofing method.)

  • 선윤숙;김점술;김수련;오상근
    • 한국건축시공학회:학술대회논문집
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    • 한국건축시공학회 2005년도 춘계 학술기술논문발표대회 논문집
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    • pp.185-190
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    • 2005
  • Safe, economical and environment-friendly tunnel construction are required again along with social continuous development, the importance of waterproof work that is portion that actually all of user and builder can find that is embossed by tunnel construction's one of important construction. Also, ECB (Ethylen Copolymer Bitumen) sheet that is used in existing tunnel waterproofing method (ECB waterproofing method) being black because asphalt (Bitumen) is added, by purpose that make illumination of tunnel interior brightly and scar discovery eases in sheet with coating white film, but ECB that is used present according as ECB that asphalt is added does not satisfy high tensile strength of construction field, quality standard of extension. Also ECB denigrates color of black M/B that asphalt is excepted.

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경주석빙고 구성석재에 형성된 표면오염물의 특징과 그 제거방안 (Characteristics of surface pollutants on stone materials and its cleaning measures in Gyeongju Soekbinggo)

  • 도진영
    • 한국문화재보존과학회:학술대회논문집
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    • 한국문화재보존과학회 2005년도 제21회 발표논문집
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    • pp.71-88
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    • 2005
  • 경주석빙고 내부암석의 표면에는 갈색오염층이 생물체와 함께 두텁게 형성되어 있다. 이 부분에서 소량의 시료를 채취하여 화학성분, 광물성분, 염성분 및 미세조직분석을 실시하였다. 연구 결과, 오염층은 연질로서 제거가 용이한 것으로 파악되었다. 그러나 암석의 표면도 오랜 시간이 오염물질과 수분으로 인해 풍화가 많이 진행된 상태이므로 제거시 암석층도 함께 제거될 수 있다. 이 표면오염물질은 상부 봉분의 토양이 수분과 함께 석빙고 내부로 흘러내려 암석표면에 흡착된 것과 경주석빙고 입구에 깔려진 조립사질토양에서 부유되는 먼지의 흡착으로 생성된 것으로 추정된다. 경주석빙고를 보존하기 위해서는 표면오염물의 제거에 앞서 형성의 원인인 상부에서 흘러내리는 수분의 방수와 주변에 조성된 조립사질토양을 부유되지 않는 다른 것으로 대체하는 작업이 우선시된다. 이후에 표면오염물을 제거하고, 내부를 습하지 않게 유지해주어야 한다.

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공연장의 소방시설 설치기준의 개선방안에 관한 연구 (A Study on the Fire Protection System in the Stage)

  • 장상태;이영재
    • 한국화재소방학회논문지
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    • 제13권4호
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    • pp.13-19
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    • 1999
  • 건축물의 면적과 용도에 따른 형식적이고 획일적인 소방시설의 설치기준에 대하여 국내공연장들의 소방 시설 실태를 근거하여 건축물의 특이성에 적합한 방재시설에 대한 보완방법을 신축하고 있는 1900석 규모의 공연장을 사례로 하여 - 최 상층부 소방시설의 방수압력을 고려한 1차 수원의 100%와 예비 가압송수장치 -무대부 개방형 스프링쿨러에서의 측벽형 헤드 보완과 대구경 살수 헤드 -특수감지기의 설치규정 세분화와 첨단 감지기 도입 -무대부와 객석부의 방화구획용 방화막의 설치와 설치에 따른 설치방법 등에 대해 제시하였다.

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투습방수 코팅소재의 반복세탁에 따른 촉감 및 봉제 외관 성능의 변화 (Changes of Handle and Total Appearance Value on Waterproof and Water Vapor Permeable Coated Fabrics by Repeated Washing)

  • 조지현;류덕환
    • 한국생활과학회지
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    • 제9권1호
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    • pp.33-45
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    • 2000
  • The handle were observed by objective and subjective method as the washing was repeated for 4 kinds(sample A, B, C, D) of materials which have different water vapor transmission, and the change of water vapor transmission each others. The results of factor analyses for 18 polar adjective words on subjective handle test yielded 4 factors, that were 'elastic property', 'surface property', 'thickness and weight property' and 'thermal and rigid property'. The surface properties were deteriorated remarkably as washing was repeated and significant difference were observed. Compared with the primary hand value for each materials, the statistical difference of samples was shown at Koshi and Fukurami measured by the KES-FB system. Koshi decreased for all the materials after repeated washing, and Fukurami had a tendency to increase for all the materials in proportion to repeated washing. Significant difference of total hand value wasn't shown in repeated washing number, but in fabric types.

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농촌 주거취약계층 주택 개보수 특성에 관한 연구 (A Study on Characteristics of House Repairs for Weak Class in Rural)

  • 정금호
    • 한국농촌건축학회논문집
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    • 제15권4호
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    • pp.17-24
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    • 2013
  • Rural community in Korea being changed to aging community, declining population and income loss by the industrialization and the urbanization. The weak class in rural is confronted with more poorly environment. So it is needed to check the quality of the weak class's house in rural. Basically proposes of this paper is to find ways about rural housing improving and the vitality of rural community. This paper contents rural housing problems through the paper review and house repair characteristics for the weak class. Data for statics analysis were obtained from house repair support program for the weak class in Jeonnam province from 2011 to 2012. The results of this paper are as follow: First, house repair items ranking for the weak class in rural was insulation & heating, toilet, structure, indoor environment, electricity, outside and kitchen & waterproof. This result was reflected that weak class's energy bills is high ratio compared with income. Second, health facilities were improved for the socially disadvantaged's convenience in considering that most of weak class is a senior. Last, most of houses for weak class in rural are old clay wall and block wall. So these houses are reinforced the wall for structural safety.

Skin Wettedness 분석을 통한 아웃도어웨어의 착용 쾌적성 평가 (Evaluation of the Wear Comfort of Outdoorwear by Skin Wettedness Analyses)

  • 정정림;김희은
    • 한국의류산업학회지
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    • 제11권6호
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    • pp.947-952
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    • 2009
  • The purpose of this study is to analyze skin wettedness($w$) used as the rate index of thermal comfort, and to evaluate the wear comfort of outdoorwear. Skin wettedness is widely used to express the degree of thermal comfort. If skin wettedness exceeds a certain threshold, the body feels damp and discomfort. An experiment which consisted of rest(30 min), exercise(30 min) and recovery(20 min) periods was administered in a climate chamber with 10 healthy male participants. Two kinds of outdoorwears made of 100% cotton fabrics (Control) and specially engineered fabrics having feature of quick sweat absorbency and high speed drying fabric (Functional) were evaluated in the experiment. The condition of climate chamber was controlled according to the thermal insulation of 4 kinds of experimental ensembles(E1~E4). Total sweat loss, sweat loss absorbed into clothing and skin temperature were measured. Skin wettedness was calculated from the ratio of evaporative rate to the maximal evaporative capacity. Skin wettedness of 'Functional' was lower than 'Control' in the 3 kinds of ensembles(E1, E2, E4) because the materials of 'Functional' were composed of quick sweat absorbency and high speed drying fabrics, water vapour permeability and waterproof fabrics.

Silica를 함유하는 Polyurethane dispersion 투습방수 Film의 제조 (Fabrication of Silica-Containing Breathable Waterproof Polyurethane Dispersion Film)

  • 신현기;허만우;윤남식
    • 한국염색가공학회지
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    • 제27권2호
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    • pp.126-131
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    • 2015
  • Silica-polyurethane hybrid breathable films were prepared and their breathabilities were assessed. Appropriately aggregated silica was prepared through sol-gel reaction of water glass and its particle size ranged 360~500nm. The polyurethane dispersion was prepared by the reaction of isophorone diisocyanate(IPDI) as diisocyanate and polytetramethylene glycol(PTMG) and dimethylol propionic acid(DMPA) as polyol, particle size ranging 30~120nm. The reaction between isocyanate and hydroxyl group to form urethane bonding was checked by the intensity of the stretch peak of isocyanate at $2270cm^{-1}$ in the FT-IR. The silica was incorporated into polyurethane dispersion and casted into film. It was shown that the incorporated silica(1~5wt.%) increased water vapour permeability of the films by 30~100%, and decreased the hydrostatic pressure by 10~40%. From the results, it could be concluded that the appropriate hybridization of silica can increase the breathability of polyurethane dispersion film, while minimizing the loss of hydrostatic pressure.

폴리에틸렌/폴리프로필렌/폐타이어고무분말 복합체의 기계적 특성 (Mechanical Properties of Polyethylene/Polypropylene/Waste Tire Rubber Powder Composites)

  • 최정수;박차철
    • Elastomers and Composites
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    • 제46권4호
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    • pp.318-323
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    • 2011
  • 폐타이어고무분말을 재활용하기 위하여 방수시트용 고무분말 복합체를 제조하였으며, 수지 종류와 가교제의 함량이 복합체의 기계적 특성에 미치는 영향을 고찰하였다. EPDM이 부가됨에 따라 고무분말 PE 복합체의 신장율이 3배 이상 증가하는 현상을 나타내었다. 고무분말 충전 복합체에 가교제의 농도가 증가함에 따라 복합체의 강도가 증가하였으며, 특히 재생 폴리프로필렌을 사용한 경우 3배 이상 인장강도가 현저하게 높게 나타났다. 따라서 폴리프로필렌 블렌드물로 고무분말 복합체를 제조하는 경우 신재 폴리프로필렌을 사용하는 것 보다 재생 폴리프로필렌을 사용하는 것이 기계적 특성면에서 효과적인 것으로 나타났다.