• 두엄누리회보
• /
• s.49
• /
• pp.1-4
• /
• 2007

유기질비료 지원사업 개선방안 설명회/유통제품에 대한 샘플 채취는 아직 어려워/축분 퇴비 품평회/2007년도 농업연수원 부산물비료 생산과정 교육 실시/친환경 유기농자재 목록 공시제도 6월 30일 마감

• Korean Journal of Construction Engineering and Management
• /
• v.15 no.1
• /
• pp.101-110
• /
• 2014

The ministry of Land, Infrastructure and Transport announced that they launched the pilot project to offer Happy House built with modular construction as part of the major projects of incumbent government in 2013. The market size of modular construction is getting increasingly enlarged together with strong will of government. The major challenges that current modular construction encounters can be summed up as lack of standardization of material on the stage of design and fabrication. The portion of material costs in modular construction marks 16 to 17% higher than the existing other construction method, and account for 60 % of total construction cost, which is why material management is the most important factor. However, the imperfect standardization and specification on design causes high loss of materials on fabrication, which makes the construction wastes and total construction cost increasing in accordance with the increase of material costs. This study has been conducted to verify major modules by developing optimization algorithm on gypsum board material among wall finishing materials. It is expected that this paper contributes not only to eco-friendly construction by minimizing the waste factors of materials through these efforts, but also to removing high cost issues which had been recognized as a setback of current modular construction.

• Korean Journal of Construction Engineering and Management
• /
• v.4 no.1 s.13
• /
• pp.90-96
• /
• 2003

The purpose of this study is to present an improvement building construction process by using prefabricated materials. The current slab form work has waste factor by unnecessary process and not complete integration with the finishing process. Therefore the study used value stream analysis methodology for effective improvement of slab form work process. The main contents of the study are as follows; 1) Non-value adding activities were found at existing slab form work process by current state mapping(CSM) 2) Future state mapping(FSM) suggest process Integration to slab form work. 3) Slab form work is analyzed reduction time-cost by prefabricated material. The study recommends that, as a future research, development of tool and technique for the non-value adding activities are eliminated in building construction and application of prefabricated material should be increased.

• Journal of the Korean Wood Science and Technology
• /
• v.37 no.1
• /
• pp.12-18
• /
• 2009

This study was attempted to investigate indoor air quality of a wooden house. Emission characteristics of carbonyl compounds from indoors whose interiors were finished using ecofriendly materials were detected. From the results of the examination, the carbonyl compounds mostly consisted of formaldehyde, acetaldehyde, and hexaldehyde. Especially, formaldehyde accounted for the largest portion of the compounds at 25.6~30.5%. All the rooms except for R2-2 contained formaldehyde less than criteria of indoor air quality of newly-constructed houses. In addition, all the rooms except for room R1-3, contained acetaldehyde more than the level of $48{\mu}g/m^3$ recommended by Japan's Ministry of Health, Labour and Welfare. As a results of the different wall covering, the room R1-1 of Hwangto emitted relatively higher levels of carbonyl compounds than the room R2-1 of phytoncide. In addition, the room R2-2 of the bamboo charcoal panels emitted more carbonyl compounds than the room R1-2. The living room R1-3 of Japanese cypress (Cryptomeria Japonica) emitted lower levels of carbonyl compounds than other rooms.

• Korean Journal of Construction Engineering and Management
• /
• v.9 no.4
• /
• pp.84-91
• /
• 2008

"Eco-friendly construction" is an emerging issue in the building industry. Main purpose of the eco-friendly construction is to sustain the health and environment of building residents and to minimize the harmful effect on their environment. Apartment residents have great concern on eco-product, since many cases are reported that Sick Building Syndrome is caused by toxic substance from building materials. Environmental performance is to meet through using the highest grade eco-friendly materials. However, generally eco-friendly materials are more expensive than normal materials, Therefore, using eco-friendly materials at public housing project is limited to economical aspect. The purpose of this paper is development of eco-friendly material selection model considered cost efficiency. The selection of Eco-friendly finishing materials and their methods are constructed to consider environmental performance level and cost index compositively. Development of eco-friendly material selection method is economic and reasonable one when public housing is constructed.

• The magazine of the Korean Society for Advanced Composite Structures
• /
• v.5 no.4
• /
• pp.21-28
• /
• 2014

최근 증가하는 현무암 석분슬러지를 건설재료로 재활용하기 위한 방안으로, 시멘트 몰탈에서 잔골재의 일부를 현무암석분슬러지로 대체한 후, 기능성 마감재로서의 성능을 검증한 결과 다음과 같은 결과를 얻었다. 1. 현무암 석분슬러지를 포함한 몰탈의 휨인장강도와 압축강도는, 대체율 21%에 도달할 때까지 압축 및 휨인장강도는 일반 시벤트몰탈 대비 각각 47%와 35% 증가하였다. 2. 원적외선 방사율에 있어서도 기존몰탈보다 높은 0.933까지 이르렀으며, 이 수치는 기타 기능성 마감재보다 우수한 원적외선 방사율을 나타내는 것이다. 3. 음이온 방사량은 현무암석분의 대체율에 따른 일관된 경향을 보이지는 않았으나, 일반 시멘트몰탈 보다는 5% ~ 12% 증가효과가 나타났다. 4. 기존 시멘트몰탈의 잔골재의 21%를 현무암석분슬러지로 대체할 경우, 시멘트 몰탈보다 물리적 성질이 증가 함과 동시에, 기능성몰탈로서의 원적외선 방사율, 음이온 방사량의 증진효과가 있었다. 또한 새로운 건축자재의 생산을 통한 경제적 이득은 물론, 산업폐기물의 양을 줄일 수 있다.

• Proceedings of the Korean Institute Of Construction Engineering and Management
• /
• 2007.11a
• /
• pp.953-956
• /
• 2007

"Eco-friendly construction"is an emerging issue in the building industry. Main purpose of the eco-friendly construction is to sustain the health and environment of building residents and to minimize the harmful effect on their environment. Apartment residents have great concern on eco-product, since many cases are reported that Sick Building Syndrome is caused by toxic substance from building materials. Environmental performance is to meet through using the highest grade eco-friendly materials. However, generally eco-friendly materials are more expensive than normal materials. Therefore using eco-friendly materials at public housing project is limited to economical aspect. The purpose of this paper is development of eco-friendly material selection model considered cost efficiency. The selection of Eco-friendly finishing materials and their methods are constructed to consider environmental performance level and cost index compositively. Development of eco-friendly material selection method is economic and reasonable one when public housing is constructed.

• Proceedings of the SAREK Conference
• /
• 2005.11a
• /
• pp.3-8
• /
• 2005

Building parts of Multi-Family Houses are consisted of several building material assembly. Therefore, after selecting building materials with test result of emission intensity and their feature, composed building materials are made equally with actual construction methods, and experimented emission intensity. 7 days after experiment, formaldehyde emission intensity appeared low in an order of Tile Wall, Wood Flooring, Wallpaper, Reum Flooring, Silk Wallpaper, and 20 days after experiment, TVOC emission intensity appeared low in an order of Tile Wall, Reum Flooring, Silk Wallpaper, Wood Flooring, Wallpaper. There was a clear difference in TVOC emission intensity according to kind of building materials. Composed building materials that weight per unit area is big and omission intensity is high, they effect continuously to indoor air because decrement is small.

• Korean Journal of Construction Engineering and Management
• /
• v.5 no.4 s.20
• /
• pp.71-78
• /
• 2004

In this study, the concept of Just-In-Time, Lean Construction and Supply Chain Management have been applied to furniture works of high-rise residental building. For the purpose of systematic furniture work planning, it should be established to analyse furniture-work process from design phase through contract, and procurement to construction phase. The analysis of process and data for furniture-work provides the roles of conducting subjects and presents management items at each phase. This proposal will provide the systematic furniture-work managements and reduce construction time and cost, and also raise the quality of furniture works.

• Proceedings of the SAREK Conference
• /
• 2008.06a
• /
• pp.981-985
• /
• 2008

Construction company's role is getting bigger recently because of interest of indoor air quality problem. The using environment-friendly building finishing material is the most benefit method to reduce pollutants in house. It is confirmed the actual condition of environment-friendly building finishing material such as wallpapers, wooden flooring boards, glues, paints, adhesives, plaster boards that are used the work of apartment construction in 2006-2007. It shows that environment-friendly materials have excellent grade mostly, general materials have pass I, pass II grade mostly and are high TVOC emission.