• 한국환경보건학회지
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• 제47권5호
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• pp.425-431
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• 2021

Background: This study evaluated the radon contribution rate through an evaluation of the exhalation rate of radon from building materials. Objectives: This study compared and evaluated the computation of the radon contribution rate based on each different exhalation rate in a building. Methods: The six demonstration houses that are the subject of this study are wall structures or Rahmen structures, and include demonstration houses similar to general residential environments and non-finishing houses with some walls exposed. Results: The highest exhalation rate was found at 62.98 Bq/m² per day from the non-finishing floor, and the second highest exhalation rate was from stone materials at 58.76 Bq/m² per day. Based on this result, investigating the contribution rate of building materials derived from building materials among indoor radon concentrations, house three was the highest at 81.7%, and house one was confirmed to be 33.96%. Conclusions: It can be judged that the effect of exposed concrete and stone is high, and that it is possible to reduce radon emitted from indoor building structures by controlling the indoor materials.

• Journal of the Korean Wood Science and Technology
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• 제35권6호
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• pp.83-90
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• 2007

본 연구는 목재를 이용하여 축조한 주택에 친환경마감재를 달리하여 조성한 후 실험실의 실내오염물질 방산 저감에 미치는 영향에 대해 검토하고자 하였다. 측정 결과 모든 시험실에서 벤젠, 톨루엔, 에틸벤젠 및 스티렌의 함량이 신축 공동주택의 실내공기질 권고기준치 이하로 나타났다. 실험실 R1-1과 R2-1에서 다른 종류의 벽지를 사용함에 따른 차이를 본 결과, 황토 벽지를 사용한 R1-1에서 상대적으로 높은 자연적인 VOCs (Natural VOCs)값을 얻었으며, 인위적인 VOCs (Anthropogenic VOC) 및 총 VOCs (Total VOCs)의 함량도 높게 나타났다. 실험실 R1-2와 R2-2에서 대나무숯 패널의 유무에 따른 방산특성을 비교한 결과 대나무숯 패널을 설치한 시험실에서 AVOC 함량이 높게 나타났는데 이것은 패널부착 시 사용된 접착제에 일부 영향을 받은 것으로 판단된다. 시험실 R1-3(거실)은 나머지 4곳의 시험실(침실)에 비해 낮은 TVOC 함량을 나타내었고, 다른 시험실과 비교하였을 때 TVOC에 대한 NVOC의 구성비륭이 높은 것으로 보아 마감자재로 사용한 편백의 영향을 받은 것으로 판단된다.

• 한국실내디자인학회논문집
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• 제17권3호
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• pp.111-122
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• 2008

As Korea has undergone rapid modernization, urbanization and industrialization, women's social participation has increased. Accordingly, child care facilities have shown continuous growth in numbers. However, according to research, child care facilities in Korea lag behind those in other nations in terms of quality. Given that, it seem urgent to enhance the quality of child care facilities and improve their indoor environment. Above all, overall atmosphere, colors and finishing materials are connected directly with educational effects as well as feelings and health of facility users. This study assesses the current state of child care facilities and preferences by focusing primarily on interior atmosphere, materials and colors. For This Study, 7 facilities were surveyed, and 46 subjects were participated for this study. The findings suggest that "pretty" style is preferred to "natural" style. As regards flooring material, wood floor is preferred. It is recommended to lay pastel colored carpet or PVC flooring material to the wood floor. As for wall, it is desirable to divide the wall spaces by adding wood and painting to simple wallpapers. In case of the ceiling noise absorptive material is recommended to use instead of wallpapers. For the doors, it is desirable to use contrasting materials and colors given accessibility for children. In the meantime, rather than strong primary colors, soft color or pastel colors are desirable for furniture. This study has limitations because of insufficiency of case study samples. However, it is significant in that the study results may be used as primary source of information to improve the environment of child care facilities.

• 설비공학논문집
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• 제18권6호
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• pp.486-492
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• 2006

In this research, IAQ is measured to evaluate the emission performance of VOCs in three new apartment houses finished by totally EFMs (Environmental Friendly Material), partially installed EFMs and general materials. Among various VOCs, Target pollutants for the IAQ measurement are benzene, ethylbenzene, toluene, xylene, 1,4-Dichlorobenzene and formaldehyde. The measurement is conducted one day after each interior finishing material is worked over by construction schedule. The result of this research concluded that (1) Except toluene, the concentration levels of each pollutant did not exceed the national IAQ standards in all test residences, (2) As the interior finishing work schedule, A toluene level peaked when the furniture installing was ended. (3) The toluene concentration level of the house installed general interior materials as the non-EFMs furniture was one and half higher than other houses. Consequently, installing. the furniture made by EFMs is one of effective methods to improve the IAQ for new apartment houses.

• Journal of the Korean Wood Science and Technology
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• 제48권2호
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• pp.217-230
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• 2020

지구온난화로 인한 온실가스 배출 감소에 대한 관심도가 증가하고 있으며, 이 중 온실가스 감축 계획으로 에너지 소비 감소 계획이 제안되고 충족을 위한 건축물이 열관류율 기준이 강화되었다. 한국에서는 소비되는 전체 에너지 중 약 25%는 건축부문에 사용되고 있으며 건물 에너지 소비량 감소를 위한 열전도율이 낮은 건축자재 또는 단열재 개발이 요구되고 있으며, 열전도율이 낮은 목재의 활용 사례도 증가하고 있다. 또한 내부 마감재로 사용될 경우 건물 에너지 소비가 최대 7%까지 감소된다는 선행연구 결과를 바탕으로 본 연구에서는 일반적으로 실내마감재로 사용되는 3가지 유형의 마감재(시멘트, 오동나무, MDF)에 따라 열전달특성 및 열용량을 비교하였다. 본 연구를 통하여 열 이동은 복사열의 형태로 전달되며 오동나무 마감재 사용시 에너지량과 열전달량이 가장 많은 결과로 실내 마감재로 목재 사용 시 건물 내부의 에너지 효율을 향상시킬 것으로 판단된다.

• 한국생활환경학회지
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• 제24권5호
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• pp.654-664
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• 2017

The use of environmentally friendly finishing materials allows us to create a space where we can feel nature and to have stability and peace in the city center. In this paper, we examined the sensitivity of people to the three café spaces where wooden finishing materials are used in the space elements that change according to people's demands for environmentally friendly space due to pollution of living environment. First, we examined the wood and finishing materials and emotional vocabulary through literature review and previous research. Second, the values of L ^*, a ^*, b^* and sR, sG and sB values were extracted by using a line spectrophotometer (Ci6X). Third, we conducted a 7 - point scale questionnaire based on the extracted 13 pairs of emotional vocabulary. Using SPSS 21, frequency analysis by descriptive statistics, crossover analysis by visiting purpose and intention, and emotional lexical factor analysis were performed. Through the study, the following points were found. First, CB (The Coffee Bean), SB (Starbucks) and HS (Hollys Coffee) showed differences in CB (65%), SB (40%) and HS (37%) in the spatial analysis. Second, CB gave color similar to the color of wall and furniture wood, but HS changed the color or brightness of wood finishing color of furniture. HS or SB showed favorable use of wood color scheme. Third, SB (26.3%) and HS (19.7%) were selected by taste. Fourth, there were differences in the items of CB, 'local-exotic' and SB 'dark-bright' in the factor value. The use of wood finishing materials differed in the atmosphere evaluation depending on the spatial factors and the color of the furniture. However, in this study, there are many factors that are insufficient in the accuracy of the ratio of the applied wood finishing material to the space element and the amount of the survey. If we further study the evaluation of emotional image according to the ratio of wood finishing materials, we think that it is necessary to study now that interest in environmentally friendly is increasing.

• KIEAE Journal
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• 제2권3호
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• pp.55-62
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• 2002

While cognition about an environment pollution becomes important recently, the intense pollution measures about an indoor air environment is required. In the case of building indoor environment, over 80% of modem people is living in building and these days an interest of building interior materials which becomes a reason for indoor environmental pollution in public house, office, is increasing. An experimental measurement method of this study is as follows. (1) American EPA TO-17, ASTMD5116-97, measurement method in VOCs experiment of Japanese closet industrial association (2) 2.4-DNPH cartridge method in HCHO experiment, based on American EPA TO-11 and measurement method of Japanese closet industrial association (3) standard compound is analyzed by using HPLC after solvent extraction process (4) paint and furniture are selected as measurement objects (5) we also made small chamber to grasp an emission characteristic of HCHO and VOCs and to get an environment-amicable forecast model through it, then we developed the model which can forecast emission rate by chamber experiment.

• 한국건축시공학회:학술대회논문집
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• 한국건축시공학회 2021년도 봄 학술논문 발표대회
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• pp.146-147
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• 2021

An increase in carbon emissions leads to the problem of global warming and is an issue to be solved in other countries. The problem of carbon dioxide has many effects not only on global warming but also on people. According to the World Health Organization (WHO), 4.3 million people have died because harmful substances generated indoors cannot be discharged to the outside and accumulate in the human body through the respiratory tract. In response to this situation, in order to reduce the generation of pollutants in the building itself, soak into lightweight bubble concrete to adsorb and purify indoor pollutants, mix charcoal, investigate the appropriate amount and physical characteristics, and check carbon dioxide This is an experiment for grasping the adsorption capacity, and the results are as follows. As the replacement rate of rice husk charcoal increased, the compressive strength tended to decrease, and the carbon dioxide reduction rate tended to increase. It is judged that the charcoal of rice husks shows a low density and the physical adsorption is smooth due to the porous structure. Since it is excellent in the basic physical properties and carbon dioxide adsorption surface of this experiment, it is judged that it has sufficient potential for use as an indoor finishing material.

• 한국건축시공학회:학술대회논문집
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• 한국건축시공학회 2023년도 가을학술발표대회논문집
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• pp.71-72
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• 2023

As industrialization and urbanization accelerate, environmental issues have moved from local concerns to global issues. Among them, air pollution is the most important issue. Modern people spend more than 88% of their day indoors, but the concentration of fine dust and pollutants flowing indoors is increasing. The indoor environment has its own complexity, and various substances used indoors, such as building materials, furniture, electronics, and cleaning agents, emit chemical substances and cause various diseases. Therefore, when selecting building materials and interior finishing materials, the pollutant emission and adsorption capacity must be greatly considered. These considerations will ensure the construction of a sustainable future environment and a healthy life within that environment. Therefore, in order to reduce the generation of indoor air pollutants, this study aims to examine the fine dust adsorption properties of cement hardening materials using sepiolite, which has a porous structure and high absorption power among clay minerals. As a result of the experiment, it was found that the concentration of fine dust decreased as the addition rate of sepiolite increased. It is believed that the fine dust concentration was reduced due to the high porosity due to the microfibrous structure and large specific surface area of sepiolite, which has a porous structure among clay minerals. It is believed that these experimental results can be used as basic research for future use of sepiolite as a construction material.

• KIEAE Journal
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• 제5권3호
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• pp.49-56
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• 2005

Recently the Volatile Organic Compound, HCHO, a harmful object spout from the construction materials is made an issue of social problem. Also the appearance of the building where the confidentiality is high was interior air pollution and it was brought about a huge problem. The government research facility and a relation industry sector conducts a many effort to improves like this actual condition. The Diverse ability building material which contains the natural material of the jade, the charcoal and the hwangto instead of the finish material which contains the harmful chemical material, is becoming development and utility. Hereupon the study have carried out research on hwangto plaster that was composed of hwangto and rice straw. The result of test that is deduced by basic proportion is properly appeared with suitable ratio of the hwangto and the sand to 4:6~5:5 by the compressive strength and crack control, workability. The result of test, that adds the rice straw to basic blending for a crack control, appeared with the fact that it is most suitable 3%to add the rice straw that has a length of 0.5cm~2cm. The result of test that plaster over the large size to compare a cement plaster with a hwangto plaster show a similar efficiency by workability. Also it controlled the crack and peeling off actual condition which is discovered from the hwangto plaster of existing perfectly.