Journal of the Korean Recycled Construction Resources Institute (한국건설순환자원학회논문집)

Korean Recycled Construction Resources Institute (한국건설순환자원학회)
권호 표지
DOI QR코드

DOI QR Code

Design Approach of Concrete Structures Considering the Targeted CO2 Reduction

목표 탄소배출량 저감을 고려한 콘크리트 구조물의 설계 절차

  • Jung, Yeon-Back (Department of Architectural Engineering, Kyonggi University Graduate School) ;
  • Yang, Keun-Hyeok (Department of Plant.Architectural Engineering, Kyonggi University)
  • 정연백 (경기대학교 일반대학원 건축공학과) ;
  • 양근혁 (경기대학교 플랜트.건축공학과)
  • Received : 2015.06.16
  • Accepted : 2015.06.26
  • Published : 2015.06.30
Download PDF
⟨ Previous Next ⟩

Abstract

The objective of this study is to present the design approach of low $CO_2$ concrete structures for reduction of $CO_2$ emissions. The design approach was implemented considering the system boundary for each processing presented in the ISO 13315-2. As for life-cycle inventory(LCI) for $CO_2$ assessment of concrete structures, data provided from domestic LCI DB was used. Based on the process presented in this study, case studies on the life-cycle $CO_2$ assessment of shear wall concrete structure was conducted. As substitution level of GGBS is 25%, the amount of $CO_2$ emissions and $CO_2$ uptake by concrete carbonation was decreased in the material, demolition and crushing, and transport phase. The amount of $CO_2$ emissions of column and total member was decreased by 26% and 22% respectively, compared to that of OPC.

본 연구에서는 $CO_2$ 배출 저감을 위한 저탄소 콘크리트 구조물 설계 절차를 제시하였다. 전과정 $CO_2$ 평가에 기반한 저탄소 콘크리트 구조물 설계 절차는 ISO 13315-2에서 요구하는 시스템 경계를 이용하였으며 구조물의 전과정 평가를 수행하기 위한 전과정 목록(life-cycle inventory, LCI)은 기본적으로 국가에서 구축한 LCI 데이터베이스 정보망을 이용하였다. 본 연구에서 제시한 절차에 따라 전단벽 콘크리트 구조물을 대상으로 전과정 $CO_2$ 평가에 대한 사례분석을 수행하였다. 기둥부재의 경우 GGBS 25% 치환 시 재료단계, 해체 및 파쇄단계, 운송단계에서 $CO_2$ 발생량 및 탄산화에 의한 $CO_2$ 포집량은 모두 감소하는 것으로 나타났으며 OPC 대비 약 26% 감소하는 것으로 나타났다. 기둥, 벽체, 보 및 슬래브 전체의 경우 GGBS 25% 치환에 따라 전과정 $CO_2$ 발생량이 약 22% 저감하는 것으로 나타났다.

Keywords

References

  1. Han, S.W. (2011). A Study on Carbon Dioxide Emission of Input Resources according to Construction Method in Construction Phase, Master Dissertation, University of Seoul, 79 [in Korean].
  2. IgCC Public Comment Hearing Committee. (2012). International Green Construction Code, International Code Council, INC.
  3. ISO/DIS 13315-2. (2013). Environmental Management for Concrete and Concrete Structures-Part 2: System Boundary and Inventory Data, International Organization for Standardization, Geneva, Switzerland.
  4. Jung, Y.B., Yang, K.H. (2015). Mixture-proportioning model for low-$CO_2$ concrete considering the type and addition level of supplementary cementitious materials, Journal of the Korea Concrete Institute, Accepted [in Korean].
  5. Lee, H.Y., Shin, Y.A., Choi, S.W., Park, H.S. (2013). Carbon Dioxide Emissions Evaluation for Reinforced Concrete Columns Based on the Optimal Structural Design, Journal of Architectural Institute of Korea, 29(8), 45-52 [in Korean].
  6. Lee, S.H, Kim, S.K. (2011). $CO_2$ reduction in the Cement Industry, Concrete and Environment, Kimoondang, Seoul, 16-30 [in Korean].
  7. Yang, K.H., Moon, J.H. (2012). Design of Supplementary Cementitious Materials and Unit Content of Binder for Reducing $CO_2$ Emission of Concrete, Journal of the Korea Concrete Institute, 24(5), 597-604 [in Korean]. https://doi.org/10.4334/JKCI.2012.24.5.597
  8. Yang, K.H., Seo, E.A., Tae, S.H. (2014). Carbonation and $CO_2$ Uptake of Concrete, Environmental Impact Assessment Review, 46, 43-52. https://doi.org/10.1016/j.eiar.2014.01.004

Cited by

  1. Long-Term Durability Estimation of Cementless Concrete Based on Alkali Activated Slag vol.4, pp.2, 2016, https://doi.org/10.14190/JRCR.2016.4.2.149