• 한국건설관리학회:학술대회논문집
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• 한국건설관리학회 2008년도 정기학술발표대회 논문집
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• pp.914-917
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• 2008

본 연구에서는 공동주택 바닥 나무 마루판 공사의 하자 사례를 조사하고 이중 가장 많은 발생빈도를 보이는 들뜸 현상에 대하여 원인분석 및 방지 방안을 검토하고자 하였다. 사례조사 결과 목질마루판 공사에서 하자요인으로써는 마루판 들뜸, 찍힘, 틈새, 갈라짐 등이 나타났고, 극중 마루판 들뜸 현상이 전체 하자비율의 72 %정도로서 가장 큰 문제점으로 나타났다. 마루판 들뜸현상이 발생하는 가장 큰 원인으로써 는 바닥 모르터의 건조수축과 목질마루판의 팽창을 특수 있는데, 모르터의 건조수축의 경우 바닥 모르터를 충분히 건조시키지 않은 상태에서 목질마루판을 시공함으로써 발생하게 되고, 목질 마루판의 팽창의 경우 목재 하지 및 주위 환경의 수분에 영향을 받아 발생하게 된다. 따라서, 목질마루판을 시공하기 전에 바닥 모르터의 양생시간을 충분히 고려하여 (약 4주간) 마루판 시공을 실시하고, 목질 마루판의 함수율이 목재 하지의 함수율로부터 4 %이상 벗어나지 않게 하며 목질마루판의 함수율을 5 % 이내로 관리하게 되면, 목질마루판의 가장 큰 문제점인 마루판 들뜸 현상은 방지할 수 있을 것으로 판단된다.

• 농업생명과학연구
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• 제46권1호
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• pp.29-34
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• 2012

소나무 톱밥보드로 제조된 우드세라믹에 전선을 연결하여 목재 틀과 콘크리트 블록 속에 넣고 통전하여 강화마루판과 합판마루판의 표면온도 상승과 하강변화를 조사 하여 우드세라믹을 온돌마루판 하부소재로 이용할수 있는 가능성을 검토하였다. 통전시간 60분 후 마루판의 표면온도와 처음 시작온도 차이는 강화마루판이 크게 나타나 합판마루판보다 열전달이 빠름을 알 수 있었다. 목재 틀에서 우드세라믹 표면설정온도가 $70^{\circ}C$와 $80^{\circ}C$일 때 60분 후 강화마루판의 표면온도는 각각 $37.8^{\circ}C$와 $39.4^{\circ}C$로 높게 나타나 열전달이 우수하였다. 각 우드세라믹 표면설정온도별 처음 시작온도와 30분후의 표면온도 하강차이는 목재 틀이 콘크리트 블록보다, 강화마루판이 합판마루판보다 커서 온도하강이 빠름을 알 수 있었다. 우드세라믹 자체의 표면온도 하강은 목재 틀보다 콘크리트 블럭에서 하강속도가 빨랐으며, 마루판의 하강속도가 우드세라믹의 하강속도보다 느려 마루판이 오랜 시간 열을 유지하고 있음을 알 수 있었다.

• 한국기계가공학회지
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• 제18권1호
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• pp.24-30
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• 2019

The deck floor of a the cargo truck becomesis damaged and aged due to the continuous loading of the loading cargo and external environmental factors. Floor boards made of wood and metal are often used. In the case of wood, the cost is high due to the use of imported wood, and the strength is easily deterioratesd due to environmental factors. In the case of metal materials, the durability is higher than that of wood, but problems are raised due to the effect of major factors that hinder the weight reduction, and the effects of corrosion. In order to replace this stucturestructural design, this study proposed a wood fiber composite using natural raw materials. Woody composites are being used as environmentally and friendly exterior materials with the combined advantages of plastic, and wood,; low cost and low density. However, due to the nature of the woody composites, the properties are differentdiffer depending on the contents of the matrix, reinforcing agent, additives, compatibilizer, etc. In this study, we investigate these problems through analysis of the microstructure and mechanical properties according to proper content and injection molding conditions. As a result, it is considered that the wood deck composite can replaced the current Deck Floor Boardreplace current deck floor boards through continuous continued research and results of this study.

• 한국소음진동공학회논문집
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• 제12권8호
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• pp.573-580
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• 2002

Generally the ceiling frame of apartment house is made of wood. But the wood frame has several problems due to the natural properties such as distortion by shrink, low fire resistance and material loss in the construction field. And it has some defections in sound insulation performance. Therefore it is necessary to develop a new method that can be used as a ceiling frame. This study aims to analyze and to compare the sound insulation characteristics against the floor impact sound between wood ceiling frame and M-bar frame which is made of steel. The results of this study are like these. M-bar frame is more effective than wood ceiling frame in sound insulation. And sound absorbing or sound insulation materials which can be Put on gypsum board are helpful to improve floor impact sound insulation performance.

• Journal of the Korean Wood Science and Technology
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• 제25권4호
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• pp.29-38
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• 1997

The effect and control of wood property of reconstituted composite panels for improved board properties by wood-waste materials and development of combination method for heterogeneous materials have been of interest to the wood science researchers. The purpose of this study is to consider the properties in relation to hot pressing conditions and to develope the optimum hot pressing condition with waste wood and waste tire for the manufacturing of composite boards. The study of composite boards for recycling of wood and waste tire is nothing up to the present. Physical and mechanical properties such as specific gravity, moisture content, swelling coefficient, modulus of rupture and modulus of elasticity in bending test were studied. The condition of 3-stage press time for the lowest moisture content of composite board was $4{\rightarrow}3{\rightarrow}3$ minutes. Specific gravity of composite panels was affected mainly by the amount of rubber chip. Because of the low rigidity and high elasticity in rubber chip, it is considered the composite panel was adequate material in the place of compression load, but not bending load. Therefore, it was concluded that a use of rubber-based wood composite panel is proper to the interior materials such as floor a room than exterior materials. From the test results, the most optimum hot pressing conditions were $4{\rightarrow}3{\rightarrow}3$ minutes for 3-stage press time and $45{\rightarrow}20{\rightarrow}5kg/cm^2$ for 3-stage press pressure. The rubber-based wood composite panel was very excellent in elasticity by combination of rubber chip in comparison with existing other wood-based materials. Therefore, it was considered that rubber-based wood composites can be applicable to every interior materials such as floor a room and will be expected to effective reuse and recycle of waste tires and wood-waste materials, and will be contribute to protection of environment pollution in earth.

• 한국건축시공학회:학술대회논문집
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• 한국건축시공학회 2020년도 가을 학술논문 발표대회
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• pp.161-162
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• 2020

In this study, as part of securing related data, water droplets were dropped on the upper part of the wooden board for flooring in an environment such as floor heating, and the degree of absorption according to the surface temperature change was tested. The test results showed that the contact angle of the surface was low (25℃→40℃) or the droplet was absorbed into the small plate and disappeared. The contact angle of the OSB and MDF was decreased within 30 minutes, but the surface water droplet was maintained longer than the plywood. This is because the surface is coated with hydrophobicity unlike the plywood, but moisture absorption in the cross section after the second processing will not be prevented and it will lead to defect occurrence problem.

• 한국조리학회지
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• 제15권4호
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• pp.9-17
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• 2009

광주 지역 하절기 동안 일식 레스토랑 10곳의 위생 평가를 위해 미생물 검사를 실시하였다. 일식 레스토랑의 설비 및 조리기구 표면에서 swab sampling 방법으로 스폰지로 200개의 도말 표본을 채취하였다. 총 균수, 대장균군, 대장균, 포도상구균, 살모네라균, 리스테리아균을 측정하였다. 그 결과, 대부분의 도말 표본이 미생물과 대장균군으로 오염된 것으로 입증되었다. 오염 정도는 샘플 채취 장소에 따라 달랐다. 심하게 오염된 곳은 바닥, 트렌치, 생선 취급 코너였고, 이러한 표본의 총 균수는 $10^4$ CFU/100 $cm^2$이 넘었다. 바닥, 트렌치, 나무 도마의 대장균군은 $10^3$ CFU/100 $cm^2$이 넘었다. 게다가 대장균군은 행주, 식기, 그리고 생선 및 채소 코너에서도 검출되었다. 대장균은 몇몇 식당의 바닥과 트렌치에서 검출되었다. 포도상구균은 몇몇 식당의 도마, 행주, 바닥, 트렌치에서 발견되었다. 살모넬라균과 리스테리아균은 모든 표본에서 검출되지 않았다. 이러한 결과는 일식 레스토랑에서 위생관리와 소독이 필요함을 보여준다.

• KIEAE Journal
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• 제10권3호
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• pp.17-26
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• 2010

This study aims at exploring the characteristics of the Usonian houses of Frank Lloyd Wright from an ecological viewpoint. After considering the definition and application of ecological architecture through literature review, 28 Usonian houses were selected and analyzed for the study. Also, nine Usonian houses, which clearly have ecological and historical importance, were visited and more thoroughly analyzed. The result shows that Usonian houses are ecological in terms of 1) the relationship among nature, landscape and house, 2) the orientation, natural light and natural ventilation, 3) the use of natural local materials including wood, stones and bricks, 4) the use of floor heating (the On-dol system inKorea), 5) the human scale, 6) the use of the board and batten unit (an early system of prefabrication), and 7) the openness and flexibility of floor plans.

• Journal of the Korean Wood Science and Technology
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• 제36권1호
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• pp.1-11
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• 2008

안성 석남사 영산전에 쓰인 주요 목부재의 수종을 식별하기 위하여 기둥, 창방, 대들보, 서까래, 청판 등 총 95점에 대하여 조사하였다. 수종은 소나무류(경송류), 외래산 소나무류, 느티나무, 은행나무, 감나무속, 배나무속, 참나무속의 상수리나무류 등 7 수종이 식별되었다. 기둥에서는 소나무류(경송류) 8점, 느티나무 1점, 배나무속 1점이 확인되었다. 추녀에서는 은행나무 2점과 느티나무 2점, 대들보에서는 소나무 1점과 느티나무 1점이 나왔다. 주심도리는 2점 모두 상수리나무류이었고, 서까래에서는 은행나무 1점과 외래산 소나무류 1점을 제외하고는 나머지는 소나무류인 것으로 밝혀졌다. 적심목에서 느티나무 1점과 감나무속 1점이 나왔다. 다른 부재는 소나무류가 대부분이었다. 서까래에서 나온 외래산 소나무 1점은 해방 이후 영산전 수리 시 사용된 것으로 추정되었다. 소나무류 이외에 다양한 수종의 목재가 사용된 것은 사찰 인근에서 쉽게 구할 수 있는 수종들을 이용하였기 때문인 것으로 사료된다.

• 대한가정학회지
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• 제38권11호
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• pp.137-149
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• 2000

The Purpose of this study was to investigate actual condition about the modem adaptation of interior elements(floor, wall, ceiling, door & window) in traditional thatched roof house. The examined objects were interior space of 36 restaurants and cafes in Seoul and Kyung-Ki Do area. 1. Floor: Jang-pan was mostly alternated with linoleum which huts Jang-pan pattem. Wumul-maru was adapted from the original and Jang-maru was alternated with wood or linolium which has western state Jang-maru pattern. Mud was adapted from the original or alternated with slate stone or rough finish cement. 2. Wall: Rice proper was alternated with rice paper book witch has chinese character, paper for parcels or modem wall paper. Plaster-white paint or white handy coat. Mud-mud color paint or bamboo stick witch located in the mud wall orginal. Log-half cut log. Wooden board-without cross bar or irregular form. 3. Ceiling: Yondung-Chongang was mostly adapted from the original and Banja-Chonjang was alternated with rice paper book which has Chinese character or modem wall paper. 4. Door and Window: Ttisal-mun and Panjang-mun were adapted from the original. Wan and A’character door and window were simplified character itself.