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석고보드 건식벽체를 이용한 가변형 공동주택의 전과정 $CO_2$ 배출량 및 경제성 평가
하성균,태성호,신성우,김경래,이종선,한상현,이진원,Ha, Sung-Kyun,Tae, Sung-Ho,Shin, Sung-Woo,Kim, Kyung-Rai,Lee, Jong-Sun,Han, Sang-Hyun,Rhee, Jin-Won 대한건축학회 2011 대한건축학회논문집 Vol.27 No.10
Recently driven by the ease of remodeling and increase of lifespan and performances required of apartment houses, demands for plaster board drywall with outstanding flexibility are growing, and the importance of their assessment of environmental load is rising. In this study, $CO_2$ generated during the life cycle of a building($LCCO_2$) and its economic efficiency were evaluated for the assessment of the environmental load and cost of buildings that used plaster board drywall. Typical concrete bearing wall structure for apartment building was set as case 1, and comparison subjects were developed as case 2, case 3 and case 4 based on the ratio of plaster board drywall on top of case 1. Structural safety of each building to be assessed and the legal incentives by the use of variable type wall were considered. In addition, both for life cycle $CO_2$ emission and economic efficiency, life cycle assessments were conducted by stages including construction stage, operation/maintenance stage and demolition/waste stage. A set of data including construction material quantity, amount of energy usage, repair rate and repair period etc which are required in each stage of assessment were utilized for both $CO_2$ assessment and economic efficiency. As a result, in case of flat-type, the life cycle $CO_2$ reduction rates of cases 2, 3 and 4 compare to case1 were 1.0%, 4.5% and 5.4% respectively, and in the assessment of cost, the reduction rates compare to case1 were -0.01%, 5.8% and 6.0% respectively.