• 한국도로학회지:도로
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• v.19 no.3
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• pp.32-39
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• 2017

• Journal of the Society of Disaster Information
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• v.8 no.3
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• pp.297-303
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• 2012

This study examines the isolation-heat performance of fire proof fabric that is equipped over ceiling board in order to secure the capability of arresting the spread of a fire at roof 'Jucsim' structure of Wooden Cultural Properties. For this examination, I conduct experiments with the model and compare two construction methods of fire proof fabric, or flat-type, folding-type. The experiments show the following results. In case of installing the fire proof fabric in flat-type, when the temperature under the ceiling board is $750^{\circ}C$, the temperatures over the ceiling board is $50^{\circ}C$; the difference is $700^{\circ}C$. Compared with the case of removing fire proof fabric, the temperature over the ceiling board is lower by approximately $580^{\circ}C{\sim}600^{\circ}C$. Therefore it can be said that the construction of fire proof fabric enhances the isolation-heat performance. In case of installing the fire proof fabric in folding-type, when the temperature under the ceiling board is $600^{\circ}C$, the temperatures over the ceiling board is $65^{\circ}C$; the difference is approximately $530^{\circ}C$. Thus its isolation-heat performance is a little inferior to the flat-type equipment.

• Journal of Korean Association for Spatial Structures
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• v.16 no.4
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• pp.9-12
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• 2016

• Applied Chemistry for Engineering
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• v.20 no.4
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• pp.416-422
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• 2009

The buildings constructed with steel structure are coated with certified fire resistive material to resist from fire. All the building materials lose their initial performances as time passes by, so they need some maintenance. The Sprayed Fire Resistive Material (SFRM) also loses its performance and this performance loss of the SFRM is very important because fire resistance of buildings depends on SFRM. So this study was aimed to synthesis of alkali-silicates for SFRM and to evaluate the effect of alkali-silicates, K-silicates, Na-silicates and Li-silicates, by exchange of mole ratios as basic factors, tested solubility, intumescence ratios, thermal analysis, powder X-ray diffraction, fire-resistant and heat-resistant.

• Proceedings of the Korean Institute of Building Construction Conference
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• 2017.11a
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• pp.45-46
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• 2017

As the environment and energy problems such as global climate change (global warming, urban heat island phenomenon) and energy depletion have come to the fore, the construction and waterproofing industry are responding more critically to the demands of global green technology and are employing more eco-friendly technologies as of recent. In this study, the application of the waterproofing material with thermal response performance in construction buildings was investigated to confirm whether the thermal performance is being properly secured by the change of the surface temperature. Experimental results showed that the surface temperature difference between before and after the application is at least 19.8℃ at the maximum 26.3℃. When the degradation rate is converted, the degradation effect of about 40% on average was confirmed.

• Proceedings of the Korean Institute of Building Construction Conference
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• 2019.05a
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• pp.95-96
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• 2019

In this study, fire resistance test according to KS F 2257-8: 2015 was carried out to compare fire resistance for wall consisted of gypsum boards with two types of drywall with gypsum boards which is based to lightweight studs. As a result, it was found that the fire resistance of the wall constructed with 12.5 mm of general gypsum board was 16 minutes higher than that of the wall constructed 9.5 mm in accordance with integrity and was 9 minutes higher than that of the wall(9.5 mm) depending on insulation. If the wall with the gypsum board 12.5 mm is constructed, it can be confirmed that the fire resistance is improved by about 43%.

• Applied Chemistry for Engineering
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• v.27 no.1
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• pp.35-38
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• 2016

In this study, the mica used as a thermal-insulation material was modified with a silane coupling agent, octyltriethoxysilane (OTES), to improve its hydrophobicity. The modified mica was characterized using FT-IR spectrometer, water wettability test, and water contact angle measurement. The analysis exhibits that OTES for the modified mica sample was well bonded chemically and drastically enhanced the hydrophobicity. The reflectance observed as 73.9% (mica) and 86.4% (OTES/mica), respectively, for OTES/mica was improved about 12.5% before any modifications. Also the modified mica sample showed $7.2^{\circ}C$ decrease in the thermal-insulation performance of cool paints compared to that of using unmodified mica, indicating that the modification of mica with silane coupling agents could be effective in enhancing the thermal-insulation performance of the cool paint.

• Proceedings of the Korea Institute of Fire Science and Engineering Conference
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• 2013.11a
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• pp.172-173
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• 2013

발코니 확장에 따른 아파트의 화재안전기준 강화를 목적으로 건축법 시행령 제 46조 제 4항의 규정에 따라 현재 건축되고 아파트에는 $2m^2$이상의 대피공간을 설치해야 한다. 그리고 대피공간은 채광방향과 관계없이 거실 각 부분에서 접근이 용이한 장소에 설치해야 하며, 출입구에 설치되는 갑종방화문은 거실쪽에서만 열 수 있는 구조로 해야한다. 하지만 현재 시공되고 있는 방화문은 비차열성 방화문으로써 거실공간에서 화재가 발생하였을 경우 방화문의 열전달 현상에 의해 대피공간 내부의 온도상승이 유발되지만 현재 방화문의 차열성능에 대한 규정이 부재하기 때문에 향후 인명피해가 우려되는 상황이다. 본 연구에서는 실제 방화문의 성능시험을 통해 대피공간과 접한 방화문 면의 온도변화를 측정하였으며, 이로 인한 대피공간 내부의 온도변화를 분석하기 위해 수치해석을 수행하였다.

• Journal of the Korean Institute of Rural Architecture
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• v.17 no.2
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• pp.9-16
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• 2015

This study comparatively analyzed thermal characteristics of the green color, which is currently used the most, and other various colors of a rooftop urethane water proofing sheet. This study also analyzed the cooling performance by color of the water proofing sheet that fused cooling paints, and presented the effective water proofing sheet color for building energy savings. The experimental results are as follows: (1) The value of L (brightness) diminished, and brilliance also became lower from the white color to the black color, and thus, it was confirmed that relatively more heat was absorbed. In a and b chromaticity, which is the color attribute that ignores brightness, no special relationship was identified. (2) Considering that the cooling performance effect is bigger in summer than winter, due to heat reflection, the white water proofing sheet is more effective in building energy savings than the green water proofing sheet that is currently used the most. (3) The water proofing sheet's color has an impact more on cooling performance than the color of the background side of a structure on which water proofing sheet is installed. The experiment object of gray, of which background side is similar to cement mortar, was lower by $5.7^{\circ}C$ than the white background side.

• Fire Science and Engineering
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• v.25 no.3
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• pp.8-13
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• 2011

The fire compartments which are composed of fire walls and fire doors for buildings are compulsorily required to minimize the fire damage in Korea. The performance standards of fire doors for compartments are regulated by the notification of the ministry of land, transport and maritime affairs and are mainly about the Integrity of the doors not insulation. In this study, we measured the radiant heat of six different kinds of fire doors in fire and analyzed the results and presented the reasons of the need to consider adding the radiant heat standard for fire doors to the notification.