논문 상세보기
pp.43-51
This study aims to quantitatively evaluate the life cycle carbon emissions of continuously reinforced concrete pavements on Korean expressways. The analysis focuses on assessing the effect of the changes in pavement design life and maintenance frequency on total carbon emissions to provide a basis for effective carbon reduction strategies. In accordance with ISO 14040 and ISO 14044, carbon emissions were calculated using actual design documents, including bills of quantities and unit price lists. National emission factors were applied to each life cycle stage, including the maintenance stage that was modeled based on the standard maintenance scenarios of the Korea Expressway Corporation. The study also conducted a scenario-based evaluation to examine the impact of extending the pavement design life from 20 to 30 years on maintenance-related emissions. The usage stage accounted for the largest share of total emissions, followed by the material production and maintenance stages. Notably, repeated asphalt overlay maintenance contributed significantly to emissions. Extending the design life reduced the number of high-emission maintenance activities, leading to a significant reduction in the total life cycle emissions. Extending the pavement design life and optimizing maintenance cycles were effective strategies for reducing the life cycle carbon emissions in road infrastructure. Furthermore, applying eco-design principles—such as incorporating recycled aggregates or low-carbon cement during the design stage—could further enhance sustainability. Future research should include various case studies and support the development of standardized national life cycle inventory databases for road infrastructure systems.
1. 서론
2. 탄소 배출량 분석 방법
2.1. 분석 범위와 시스템 경계
2.2. 분석 절차와 방법
2.3. 설계수명 변화에 따른 탄소배출량 영향 평가 방법
3. 탄소배출량 사례 분석
3.1. 분석 대상 선정
3.2. 전과정 분석 절차
3.3. 전과정 분석 결과
3.4. 설계수명 변화에 따른 영향 평가 결과
3.5. 예측 결과의 활용방안
4. 결론
REFERENCES
