• Korean Journal of Construction Engineering and Management
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• v.8 no.6
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• pp.150-158
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• 2007

As the amount of $CO_2$ emission in Korea is ranked 9th and the increasing rate of $CO_2$ emissions highest in the world, it is strongly necessary to devise methods to decrease the amount of $CO_2$ in each industry as the basis of establishing environmentally sustainable production system. This paper aims to identify the characteristics of $CO_2$ emissions from construction wastes throughout the simplified LCA (Life Cycle Assessment) and suggest the strategic guideline for the construction waste management plan to decrease $CO_2$. As a result of LCA on the case of a high-rise residential building project, total sum of $CO_2$ emission generated from construction wastes appeared as 6,818,123kg-$CO_2$ and $CO_2$ emission per unit floor area as 21.01kg-$CO_2/{\beta}{\ge}$. The principal waste materials generating more than 95% of $CO_2$ are materials such as reinforcing bar, temporary materials, cement, ready-mixed-concrete, concrete products, and tile, which have relatively high unit emission rate of $CO_2$ in the process of production. Besides, more than 92% of $CO_2$ was generated from the activities such as structure work, plaster work, temporary work, and tile and stone work, which are generally executed in the early phase of the whole construction period. Reflecting these results, the guideline for the construction waste management plan was recommended. If the waste management plan is established considering the guideline suggested, there would be high potential to decrease the amount of $CO_2$ generated from construction wastes.

• Journal of the Korean Wood Science and Technology
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• v.35 no.6
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• pp.83-90
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• 2007

This study aimed at examining the effect of rooms decorated by eco-friendly finishing materials in a newly built wooden house on the emission of indoor air pollutions. According to the results of examination, the levels of benzene, toluene, ethyl benzene and styrene in all the rooms were below criteria of indoor air quality of newly-constructed houses. The levels of natural volatile organic compounds (NVOC), anthropogenic volatile organic compounds (AVOC) and total volatile organic compounds (TVOC) in room R1-1 which had Hwangto wall covering on it, were relatively higher than in room phytoncide wallpaper covered R2-1. The room R2-2 where bamboo charcoal panel used for wall covering showed higher level of AVOC compared to the room R1-2. Living room R1-3 was found to contain less TVOC, compared to the other four rooms. In addition, the ratio of NVOC to TVOC in the living room was higher than in the other rooms. This seemed to be attributed to Cryptomeria Japonica the living room finished material.

• Proceedings of the Korean Institute Of Construction Engineering and Management
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• autumn
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• pp.446-449
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• 2003

Recently, large residental buildings including high-rise apartment and a multi-business and commercial-residential building are appearing in the form of Korean construction work. According to this large-size trend a tenn and cost of construction works was largely increased. Therefore, studies of techniques construction management for successful project are lively being progressed. This study introduced Just-In-Time form and Lean Construction concept in order to establish management system of a house construction work taking up much portion on aspects of work scale and materials transportation in finishing works of high-rise residental building architecture. The process of house construction works will be analyzed with these two principles for productivity improvement and then the improvement plan will be suggested. This analysis and proposal can induce the flow of finishing works smoothly and contribute to success of project through saving of a tenn and cost of construction works.

• Korean Journal of Construction Engineering and Management
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• v.13 no.5
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• pp.135-143
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• 2012

Constructing super-tall buildings is significantly different from constructing general ones in every technological and managerial aspects. Especially lift-car operations planning and management is one of core parts among various management techniques required during the course of the whole construction process of the super-tall buildings because vertical movements of physical resources enormously affect the efficiency of the construction processes. However, discrepancy between lifting plans and actual lifting operations causes serious efficiency problems. As an effort to solve the problem, this research suggests an improved method of estimating resource-based lifting load. The computing model developed as a result of this research facilitates more accurate computation of the total operation time and the maximum lifting capacity of the lift-cars. Further, this research can be developed as a decision support system for the total lift-car operations management.

• Journal of the Korea institute for structural maintenance and inspection
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• v.24 no.1
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• pp.43-50
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• 2020

In this study, the possibility of seismic performance design was proposed and the quality verification test method was reviewed as part of the design of waterproof performance in underground walls under accelerated environment conditions for waterproofing materials, which are barrier and finishing material that can prevent ingress or overflowing water from inside and outside of a building by attaching all of the construction materials used in construction structures. Considering the current state of earthquake-resistant design of construction materials in Korea and abroad, seismic product groups are rare and mostly dependent on construction methods because there are no regulations on materials, although there are still regulations on earthquake-resistant design in the building process under the current law. Overseas, it was possible to confirm that various building materials that gave seismic performance to non-structural materials, such as Japan, Canada, and Germany, are being developed. If it is possible to have a complementary response to earthquakes in the advanced external waterproofing materials, it can be expected to be applicable as leak prevention and prevention technology along with the seismic designed structure.

• Proceedings of the Korean Institute Of Construction Engineering and Management
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• 2007.11a
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• pp.441-445
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• 2007

The mass housing supply policy of the government has resulted in the customer-centered market, and thereby the age of quality competition in the industry. In line with this trend of quality competition, therefore, this preliminary study aims to investigate the requirements of housing product planning to live up to the needs of customers in terms of quality, and thus analyze the types of quality differentiation of a housing product unit in our housing market. It turned out that many cases attempted differentiation in such ways as merely using luxurious finishing materials and instantly popular environment-friendly materials, and combining partial and limited household items with architectural elements of the facility system. The result of this study shows that the differentiation plan of housing product should be customer-centered, and therefore, focus on quality differentiation through organic combination of architecture-oriented plane and interior elements with technology-oriented facility and product elements. Hereby, in the future, housing product planning should include sustainable differentiation plans with reconsideration of concepts that customers have, and the needed procedure.

• Korean Institute of Interior Design Journal
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• v.16 no.2 s.61
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• pp.303-313
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• 2007

Nowadays, according to many studies, indoor space's pollution level is two to ten times higher than outdoor space's. This result arouses our attention. The major causes of deterioration of indoor air quality are the lack of ventilation caused by draught-proofing and insulation construction, and harmful chemical substances emitted from building materials, office machine and furniture. Therefore, we are continuing research to find the method for healthful house and production of many forms of well-being goods. However, because of exaggerated advertisements and the lack of accurate information, consumers choose the products whose performance is not verified. Therefore, this study investigates the actual conditions of pollution by building materials and the extent of the health damage by this pollution, and suggests the method for minimizing indoor pollution in aspect of indoor environment control and the use of environment friendly materials. But the building materials presented in this study are limited to the environment friendly construction materials that are in circulation In domestic market because this research is primarily aimed to give domestic consumers the standard for selecting this materials.

• Journal of the Korean Institute of Educational Facilities
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• v.14 no.1
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• pp.58-65
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• 2007

For the moderns who spend more than 80% of the time inside a building, interior environment became important since it directly affects their health. Recently as noxiousness of the air contaminants of the interior space stood out as well as the above trend, the Ministry of Environment enacted a lawto maintain the interior air quality at certain level of standard in the multi use facility and newly constructed apartment. To make the indoor air clean, removal technology of various contaminants should be developed and interior materials with chemical treatment should be restrained. In other words, selection of interior finish affects indoor air quality from the initial design stage to the construction stage. However, only limited contaminants emission data of building materials are supplied by related companies. There is no average contaminants emission data for overall materials. Moreover, high cost and equipments for one time measurement of VOCs emission of interior finish are the obstacles of active research and data measurement. Therefore, this paper searched the current condition of average VOCs & HCHO emission of various interior finish based on the study requested to research center from the building material company through Stands Test Method for Indoor Air Quality.

• Proceedings of the Acoustical Society of Korea Conference
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• autumn
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• pp.293-296
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• 2001

1990년대 중반 이후 우리나라 초등학교 교실은 열린교육과 다양성을 추구하는 새로운 열린교실을 표방하고 진행되고 있다. 또한 건축설계에 있어서도 과거의 종합 표준설계에 의하지 않고 각 학교마다 별도의 건축설계에 따라 지어지고 있다. 본 논문의 목적은 현재의 초등학교 교서의 차음환경을 조사하고 새로이 지어진 교사의 교실과 열린교실의 실내 음환경을 조사하여 현재 상황을 분석평가하고 이에 대한 대안을 제시하고자 하는 것이다. 이를 위하여 건축시공연대가 다른 초등학교 3개 학교를 선택하여 단위교실에서의 실내음향인자(RT60, C80, D50, RASTI)와 인접교실과의 차음성능(TL)을 측정하였다. 또한 해당교실의 학생과 교사에 대하여 설문조사를 실시하였다. 각 측정은 외부와 복도에 인접한 창문의 개폐여부와 실내의 위치별로 이루어 졌다. 실험결과, 열린교육에 따라 가변적 교실의 구성은 기존의 교실보다 차음성능이 평균$5\sim6dB$ 낮은 것으로 나타났다. 또한 신축교사의 RASTI값(0.73)이 10년 이상 된 학교(0.70)나 열린교실(0.64)보다 높은 것으로 나타났다. 음성명료도(D50) 역시 일반 신축교사가 열린교실 보다 높게 나타났다. 이것은 실의 기밀과 내부바닥의 마감자재로 비롯되었으며 최근의 열린교실은 음의 차음과 실내명료도에서 열악한 것으로 결론되었다.

• Korean Architects
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• no.2 s.370
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• pp.43-43
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• 2000

신도시는 수도권 주택문제 해결을 위하여 1980년대부터 건설되어 왔다. 행정기관의 분산정책과 함께 개발된 과천 신도시와, 주택 200만호 건설을 위하여 급조된 분당, 일산 등 신도시들이 건설되면서 건설업계는 한동안 호황과 함께 자재, 인력 부족이라는 몸살을 앓기도 하였다. 고층 고밀 아파트 단지를 중심으로 구성된 신도시는 주택 보급률 향상에는 도움을 주었지만 주거의 질에 대한 문제의 심각성을 부각시키기도 하였다. 또한 가장 빠른 기간에 거대한 신도시 건설은 세계 도시사에 신기록으로 남을 것이다. 그러나 지금은 건설배경이나 건설과정의 어려움을 잊고 이제는 위성도시로 자리잡아 가면서 나름대로의 지역문화를 형성하고 있다. 대부분 수도권에 위치한 신도시의 주민은 수도권 주변에서 떠돌다 모여들었고, 서울을 생활기반으로 삼고 있다. 낯선 곳에 낯선 사람들이 모여 새로운 도시설계 기법으로 설계된 낯선 도시에서 만나 살아가는 그들은 그들 나름대로의 새로운 도시 문화를 구축하고 있다. 그들은 급변하는 우리 현실에서 신도시에 대한 적용을 어떻게 하고 있는가? 신도시, 그곳에도 지역성은 있는가? 각 지역별로 새롭게 형성된 신 문화지형은 어떠한 모습으로 형성되고 있는가? 그리고 그곳에서 새롭게 자라나고 있는 도시건축문화는 무엇인가?라는 의문은 건설후 지금까지 그리고 앞으로 건설이 완성될 때까지, 또 계속 팽창되어 가는 신도시에 던져질 화두이다. 지역건축탐방은 인천을 시작으로 전국을 돌아 이제 신도시와 북한 편으로 마감을 하게되었다. 이 연제를 계기로 지역건축에 대한 이해와 관심이 고조되었고, 또 지역건축에 관심이 있었던 건축사(가)나 학자들의 모임이 활성화 되기도 하였다. 지역성에 대한 문제는 지역주민의 꾸준한 관심에서 출발되고 그 지역을 만들어나가는 건축사(가)들의 의식속에서 자라나게 된다. 또한 지역건축의 활성화는 지역문화형성의 밑거름이 되고 나아가 우리문화의 원천이 될 것이다. 지역성에 대한 문제는 앞으로 더욱 논의가 되어야할 영원한 과제이다. 신도시 편은 1999년 12월호 상편에 이어 이번호에 하편을 게재한다.