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중성화 환경하의 콘크리트 내에서의 Cr강방식철근의 방식성
태성호 ( Tae Bung-ho ),이한승 ( Lee Han-seung ),신성우 ( Shin Sung-woo ) 한국구조물진단유지관리공학회 2005 한국구조물진단유지관리공학회 학술발표대회 논문집 Vol.9 No.2
With the aim of developing Cr-bearing rebars having required resistance to deteriorative environments prone to carbonation, ten types of steel bars having different Cr contents were embedded in concretes to fabricate specimens assuming such deteriorative environments. After being carbonated to the reinforcement level, these concretes were subjected to corrosion-accelerating cycles of heating/cooling and drying/wetting. The time-related changes in the corrosion area ratio and corrosion loss of the Cr-bearing rebars were then measured to investigate their corrosion resistance. The results revealed that the Cr content required for corrosion resistance in a simple carbonating environment was 5% or more. The corrosion-resisting performance of Cr-bearing reinforcement was particularly noticeable with a Cr content of 7% or more.
공동주택의 전 생애주기 이산화탄소(LCCO₂) 간이평가 기법 개발에 관한 연구
태성호(Tae Sung-Ho),우지환(Woo Jee-Hwann),노승준(Roh Seung-Jun),신성우(Shin Sung-Woo) 대한건축학회 2010 대한건축학회논문집 Vol.26 No.8
This study classified the life cycle of buildings into construction stage, operation stage, maintenance stage and dissolution/disposal stage and proposed the CO₂ assessment method of each stage for the purpose of the life cycle CO₂ simple assessment system of apartment house. Specifically, in construction stage, CO₂ emission major construction materials that take up over 80% of CO₂ emission amount of building construction were selected, and method of evaluating CO₂ for 5 standard apartment houses was proposed. In addition, the CO₂ emission amounts of building operation stage and maintenance stage were calculated based on "Green Home Certification System" and "Apartment House Building Long Term Repair Plan and Repair Rate" of the Korean Ministry of Land, Transportation and Maritime Affairs, and for dissolution/disposal stage, CO₂ assessment method was proposed by arranging the amount of oil use of dissolution equipment and combined equipments into database, and analyzing the process of waste treatment. On the other hand, through the life cycle CO₂ assessment simulation on actual building using thus proposed apartment house life cycle CO₂ simple assessment program, the potential of applying simple assessment program was evaluated. As a result, the results of material production of construction stage and CO₂ calculation by maintenance stage indicated significant results closely approximating 80% of CO₂ emission amount by the construction material production of building construction set in this study at first.