• Title/Summary/Keyword: Environmental Impact Category

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Development of the Assessment Framework for the Environmental Impacts in Construction

  • Hong, Tahoon;Ji, Changwoon;Jeong, Kwangbok;Park, Joowan
    • Journal of Construction Engineering and Project Management
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    • v.3 no.3
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    • pp.1-9
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    • 2013
  • Environmental problems like global warming have now become important issues that should be considered in all industries, including construction. In South Korea, many studies have been conducted to achieve the government's goals of reduction in environmental impacts. However, the research on buildings has only focused on CO2 emission as a research target despite the fact that other environmental impacts resulting from ozone depletion and acidification should also be considered, in addition to global warming. In this regard, this study attempted to propose assessment criteria and methods to evaluate the environmental performance of the structures from various aspects. The environmental impact category can be divided into global impacts, regional impacts, and local impacts. First, global impacts include global warming, ozone layer depletion, and abiotic resource depletion, while regional impacts include acidification, eutrophication, and photochemical oxidation. In addition, noise and vibration occurring in the building construction phase are defined as local impacts. The evaluation methods on the eight environmental impacts will be proposed after analyzing existing studies, and the methods representing each environmental load as monetary value will be presented. The methods presented in this study will present benefits that can be obtained through green buildings with a clear quantitative assessment on structures. Ultimately, it is expected that if the effects of green buildings are clearly presented through the findings of this study, the greening of structures will be actively expanded.

A Study on the Comparison of Characterization of Environmental Impact of Major Building Material for Building Life Cycle Assessment (건축물 전과정 평가를 위한 주요 건축자재의 환경영향 특성화값 비교에 관한 연구)

  • Roh, Seung-Jun;Tae, Sung-Ho;Kim, Tae-Hyoung;Kim, Rak-Hyun
    • Journal of the Architectural Institute of Korea Structure & Construction
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    • v.29 no.7
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    • pp.93-100
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    • 2013
  • The purpose of this study is to compare characterization of environmental impact of major building material as part of developing the building life cycle assessment program. For this purpose, the theoretical consideration of the life cycle assessment and environmental impact category was performed and the direction of the study was set up. That is, the major building material in the global warming potential view was drawn against the building and LCI database was selected. The classification was performed about 6 kinds of environmental impact categories that it specifies in KS I ISO 14025 based on the reference substance and impact index. And the environmental impact for the major building material was calculated through the characterization. Meanwhile, the environmental impact of major building material in the same category was compared based on the characterization of environmental impact which was calculated in this study. As a result, the formulation of cement ready-mix concrete is a major factor in determining the characterization of environmental impact, and characterization of environmental impact of cement is determined, depending on the content of the alite and belite.

A Study on the Environmental Impact Assessment for Passive Apartment based on Life Cycle Assessment (LCA에 기초한 패시브 공동주택의 친환경성 평가에 관한 연구)

  • Gong, Yu-Ri;Tae, Sung-Ho;Song, Suwon;Roh, Seung-Jun
    • Journal of the Korea Institute of Building Construction
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    • v.14 no.6
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    • pp.537-543
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    • 2014
  • As environmental matters such as Green House Effect rise, many construction industries are putting an effort on minimizing environmental impact in terms of building life cycle throughout the world. However, in South Korea, evaluating the eco-friendly building based on life cycle assessment has been facing an academic ostracism while the most studies are focusing on assessing the 6 environmental impact assessments of passive apartment based on life cycle assessment. The theoretical consideration of the life cycle assessment and environmental impact category were performed and the direction of the study was set up. Also, existing apartment and passive apartment, which had same structure and same type were chosen and building materials per unit area were compared to find out the difference environmental impact for building life cycle. As a result, passive apartment was rated as low level among the 6 environmental impacts. Also, effect of building material on passive apartment was more important than its operational stage.

Comparison Analysis of the Environmental Impact of VSL Anchors and RBanchors Using a Life-Cycle Assessment (LCA) (LCA를 이용한 확공지압형 앵커와 일반 앵커의 환경영향 특성 비교분석)

  • Ahn, Taebong;Lee, Jaewon;Min, Kyoungnam;Lee, Junggwan;Kwon, Yongkyu
    • Journal of the Korean Society for Railway
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    • v.18 no.6
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    • pp.558-566
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    • 2015
  • In this study, quantitative environmental impact assessments of the VSL anchor and RB(Reaming and Bearing) anchor systems were conducted after a life-cycle assessment (LCA). In addition, improvements which reduce the adverse environmental effects of the RB anchor system were confirmed through comparisons with results with a VSL anchor system. Both results showed that water ecotoxicity and global warming are the most important in environmental influences. To determine the effect of reducing the RB anchor system environment, the result was normalized for the environmental impact category. Most items appeared to have been improved with regard to the RB anchor system. The most significant improvement was a 77% decrease in POC levels(photochemical oxidant creation). Greenhouse gas emissions, related to global warming, were decreased by 44%. It is expected that these quantitative environmental impact assessment results will serve as the basis of an anchor system for civil engineering and environmental impact assessments.

Environmental Impact Assessment of Buildings based on Life Cycle Assessment (LCA) Methodology (전과정평가(LCA) 방법을 이용한 건축물에 대한 환경영향 평가 방법)

  • Hong, Tae-Hoon;Ji, Chang-Yoon;Jeong, Kwang-Bok
    • Korean Journal of Construction Engineering and Management
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    • v.13 no.5
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    • pp.84-93
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    • 2012
  • Most of the studies on reduction of buildings' environmental burden in the construction industry have been focused on carbon dioxide emission, although there are various kinds of environmental issues such as global warming, acidification, and etc. which are considered by many researchers. Therefore, this study defined and suggested six impact categories and the principles to assess each impact for the assessment of comprehensive environmental impacts of buildings. The six impact categories are abiotic depletion, global warming, ozone layer depletion, acidification, eutrophication, and photochemical oxidation. A case study has been conducted through comparative analysis of two structural design alternatives to confirm the necessity of assessing the six impact categories. That is, the results of global warming potential and the six impacts proposed in this study were compared. By comparing the results of only global warming potential, the second design alternative using 24MPa concrete was chosen as a better alternative, while the first design alternative using 21MPa concrete was resulted as a better alternative when six impact categories were considered. The results mean that the assessment of various environmental impacts is an appropriate and reasonable approach and the comprehensive assessment offers more reliable results of environmental impacts in the building construction.

A Study on the Environmental Review through the Life Cycle Assesment Method of End-of-life Vehicle Dismantling Technology Via Indoor Rail Type (레일형 옥내화 자동차해체시스템의 전과정평가 방법을 통한 환경영향평가에 관한 연구)

  • Kim, DaeBong;Park, JeChul;Park, Jungho;Ha, SeongYong;Sung, Jonghwan
    • Resources Recycling
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    • v.25 no.6
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    • pp.13-22
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    • 2016
  • This study is aimed at compare and evaluate the environmental impact of End-of-Life Vehicle(ELV) on the eco-friendly technology dismantling and recycling system, using Life Cycle Assessment (LCA) method. In this study, it was analyzed for the environmental impacts of raw materials, disassemble process, recycle parts separation and waste treatment into the process of ELV treatment by greenhouse gas and resource consumption, etc. Through this study, the indoor rail type dismantling technology were recycling rate applied on the alternate system was increased by approximately 8%. As a result, it was 3 to 88% by improving the environmental impact category. In addition, the added benefit of approximately 8 - 62% in pre-market occurred through the recycling rate, improve parts reuse rate of ELV. Through the results of this study, legal compliance, improved reuse and recycling ratio, used parts market reach, enable exports has identified the need for the effort that the dissemination and diffusion of eco-friendly technology.