• Title/Summary/Keyword: Eco-Friendly Building

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Strength Characteristics of Rammed Earth Using Hwangtoh Binder

  • Hwang, Hey-Zoo;Yang, Jun-Hyuk
    • Journal of the Korea Institute of Building Construction
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    • v.13 no.1
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    • pp.1-9
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    • 2013
  • There has recently been a great deal of research into the appropriate building materials for eco-friendly construction. In the field of earth architecture, there have been walls made of pure earth or with rammed earth including a small amount of cement. The purpose of the study is to investigate the possibility increasing compressive strength through a more eco-friendly composition by using Hwangtoh binder rather than cement to increase the strength performance of rammed earth. It was found that the more the ratio of binder was increased, the more the strength was increased, but enhancement did not increase noticeably in the lower part that did not compact completely, and proper height to pour earth is 200 mm. When stone dust was added, compressive strength was lower than when adding fine aggregate and coarse aggregate, but a finer surface texture was provided.

The Effects of Message Design Related to Photovoltaic Energy on University Students' Attitude (에너지시설에 관한 친환경 메시지 디자인이 대학생의 태도에 미치는 영향)

  • Seo, Eun-Jung;Kim, Tae-Yeon;Ryu, Jae-Myong
    • Hwankyungkyoyuk
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    • v.25 no.2
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    • pp.242-253
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    • 2012
  • This research aims to identify the effect of message design on university students' attitude toward the BIPV (Building Integrated Photovoltaic) and find out its educational availability and implications in environment education. For this purpose, we conducted a survey on questionnaires answered by 244 students of S university at lunch time in the school restaurant with the imaginary scenario that it is required to increase the food price due to photovoltaic-equipment. The students were divided into 9 groups and according to whether the eco-friendly message components are offered and the different rate of a rise in the foods' price. In order to look over various aspects of attitudes, the questionnaires are subdivided into 2 parts according to the classification of attitudes; the preference as an cognitive-affective attitude and the intention of visit as an behavioral attitudes. The results of this study are summarized as follows; (1) The eco-friendly message design has a significant effect on students' attitude. (2) If given explanation including information regarding eco-friendly facility and marking eco-friendly' adject, it has an positive influence on students' preference and intention of visit. (3) It is more effective to offer the information about the reason why the cost increase than just explain the eco-friendly characteristics of object as the message design strategy to attract student's positive attitude. (4) Although it is required to burden a certain scale of cost, students show higher preference and intention of visit if given the eco-friendly message design.

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A study on the Development of an Eco-friendly Rooftop Waterproofing Method (친환경 옥상방수공법 개발에 관한 연구)

  • Oh, Dong-Sik;Go, Seong-Seok
    • Journal of the Korea Institute of Building Construction
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    • v.10 no.5
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    • pp.103-111
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    • 2010
  • This research aims to make a contribution to the development of waterproofing technique for rooftops by analyzing and understanding the problems of the currently used waterproofing method and their causes. To do this, this research developed an eco-friendly waterproofing method that supplements the weaknesses of the conventionally used method by analyzing the problems of leakage resulting from design and construction work to diminish leakage, improving the quality of construction work, reducing labor required and the period of construction, and improving environment alconditions. The characteristics of the newly developed method are comparatively analyzed with the convention alpractices, and are evaluated on the site.

Compressive strength estimation of eco-friendly geopolymer concrete: Application of hybrid machine learning techniques

  • Xiang, Yang;Jiang, Daibo;Hateo, Gou
    • Steel and Composite Structures
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    • v.45 no.6
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    • pp.877-894
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    • 2022
  • Geopolymer concrete (GPC) has emerged as a feasible choice for construction materials as a result of the environmental issues associated with the production of cement. The findings of this study contribute to the development of machine learning methods for estimating the properties of eco-friendly concrete to help reduce CO2 emissions in the construction industry. The compressive strength (fc) of GPC is predicted using artificial intelligence approaches in the present study when ground granulated blast-furnace slag (GGBS) is substituted with natural zeolite (NZ), silica fume (SF), and varying NaOH concentrations. For this purpose, two machine learning methods multi-layer perceptron (MLP) and radial basis function (RBF) were considered and hybridized with arithmetic optimization algorithm (AOA), and grey wolf optimization algorithm (GWO). According to the results, all methods performed very well in predicting the fc of GPC. The proposed AOA - MLP might be identified as the outperformed framework, although other methodologies (AOA - RBF, GWO - RBF, and GWO - MLP) were also reliable in the fc of GPC forecasting process.

Subject Selection Model of Green VE for Sustainable Design (친환경건축물 설계를 위한 Green VE 대상선정모델)

  • Song, Chang-Yeob;Moon, Hyun-Seok;Hyun, Chang-Taek
    • Korean Journal of Construction Engineering and Management
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    • v.12 no.3
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    • pp.42-52
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    • 2011
  • As environmental issues are rising recently efforts to reduce environmental stress are emerging in all industry segments. Especially environmental impact of buildings occupy a critical portion, so each country is operating green building rating system for life cycle of buildings. Accordingly green building rating system for every facility is operating in Korea. And acquisition of grade I for building energy efficiency is mandatory for every new public buildings since 2010. To design green building efficiently and systematically eco-friendly elements should be considered and checked from the schematic design phase. But in many cases eco-friendly elements are checked at the end of constructed design phase. So applying eco-friendly elements at the value engineering process, which is performing through schematic and constructed design phase, could make a efficient and systematic green building design. Value engineering process is divided into pre workshop, workshop and post workshop stages. And subject selection in pre workshop stage is the step that finds out the subjects which has the great possibility to be improved to perform efficient value engineering workshop. So this study present the Green VE subject selection model to select the most considerable eco-friendly subjects in projects.

An Analysis of Environment-Friendly Architecture Material Elements (친환경 건축 자재의 요소 분석)

  • Kim, Jin-Woo
    • The Journal of Sustainable Design and Educational Environment Research
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    • v.7 no.2
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    • pp.1-11
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    • 2008
  • Recently, it is throwing the spotlight on environment-friendly architecture for preservation of the global environment throughout the world. At this point in time, home products to have Eco-label in architecture materials is increasing constantly and the demand of environment-friendly building and material is rising. The purpose of this study is to propose a way of development through analysis about necessity and concept of environment-friendly architecture and research into institution and standard for certification of environment-friendly building materials. So, it will make exactly progress to this study that is based on analysis and research of periodical publications, theses, reports of journal and data of the advanced country about environment-friendly architecture.

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Impact of Environmental Concern on Image of Internal GSCM Practices and Consumer Purchasing Behavior

  • LEE, Changjoon;LIM, So-Youn
    • The Journal of Asian Finance, Economics and Business
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    • v.7 no.6
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    • pp.241-254
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    • 2020
  • As environmental concerns continue to grow, green supply chain management (GSCM) is attracting attention as an element of competitive advantage for companies. This study examined internal GSCM practices to show how they influenced the end-point of the supply chain from the perspective of the end-consumer. It identified the effects of environmental concerns on consumer purchasing behavior mediated by the company image of internal GSCM practices. Data were collected through an email survey of Korean consumers. Reliability and validity were verified using SPSS 18.0. Cronbach's alpha, and confirmatory factor analysis. The results showed that environmental concerns had a positive impact on such practices, and the image of internal GSCM practices was found to have a significantly positive effect on consumer purchasing behavior. Companies will have to actively reflect environmental factors in their operational activities, and GSCM implementation will become a necessity. A positive image of internal environmental management and eco-design, which are key elements of internal GSCM practices, strengthened the company's eco-friendly image and ultimately affected consumer purchasing behavior. This suggests that it is important for companies to evaluate their environmental attitude and make eco-friendly products from a consumer's perspective, making it a differentiation strategy for a company in building an eco-friendly corporate image.

A Fundamental Study on the Environment-friendly Planning Elements Shown of the Contemporary Housing (현대 주거에서 나타나는 친환경 계획 요소에 관한 기초 연구)

  • Kim, Jung-Gon;Koh, Gwi-Han;Han, Chang-Hwan
    • Korean Institute of Interior Design Journal
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    • v.22 no.4
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    • pp.15-22
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    • 2013
  • The domestic industry of construction is requiring an application building concept which could be one of the solution to the environment problem sand to the sustainability of development. It means that the consideration of the housing from a environmental friendly point of view is importantly necessary all things and the housing should be planned or responding to the concept of a environmental friendly planing. For this reason, the purpose of this study is to derive the design elements for the environmental friendly housing and to choose the priority element and to bring the planning guideline for the environmental friendly housing. The purpose of this study is to identify pro-environmental attitude of environment-friendly apartment residents, to examine importance of environment-friendly planning features, and to examine environment-friendly planning features according to residents' environmental perception. and now i suggest that important improvement direction by housing estates be accessed and analyzed through environmental approach, because environmentally friendly paradigm is one of the most effective and fundamental methods for developing housing estates.

A Study on Evaluation Indicator Analysis of the Green Building Certification - Focused on Post Evaluation of the Education Facilities case in Seoul - (친환경건축물인증제도의 평가지표 분석에 관한 연구 - 서울시 학교시설의 사후평가를 중심으로 -)

  • Moon, Sun-Ki;Shin, Eun-Kyung;Kim, Sei-Yong
    • Journal of the Korean Institute of Educational Facilities
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    • v.20 no.3
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    • pp.41-52
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    • 2013
  • In the current condition of seeking eco-friendly development, Green Building Certification Criteria can reduce environment burden that is able to be arose in life cycles of buildings. Moreover, it is a great help to induce to constructing pleasant environment. The ripple effect that also improves saving of energy and resources of the whole country, and green-house gases reduction effect and environment friendliness of other buildings can be expected by promoting eco-friendly education facilities which accounts for a great part of public buildings in comparison with other buildings. In this study, analysis of old and new indicators' contrast and contents in Green Building Certification, and post evaluation of education facilities and interviews on authorities were proceeded for improving evaluation indicator of each item in Green Building Certification Criteria. As a result, it analyzed problems in terms of institution and operations management, and drew implications accordingly. In addition, it has a significance in that it proposes improvements of substantively applicable indicators with high applicability.