논문 상세보기
pp.49-61
This study develops a design-data-based lifecycle greenhouse gas emission assessment framework for jointed concrete pavement highways in Korea. The framework considers road pavements as a long-life infrastructure system that includes material production, transport, construction, maintenance, end-of-life treatment, and recycling benefits beyond the system boundary. A functional unit comprising 1 km of jointed concrete pavement was defined, and 16 datasets were constructed from highway concrete pavement projects using bills of quantities, material summary sheets, and geometric information. A key feature of this framework is the incorporation of project-specific maintenance scenarios. The mainline and tunnel sections were separately evaluated and weighted based on their actual length ratios. The numbers of milling and overlay applications were estimated using the slab thickness and traffic volume from the design data. After each overlay, the cumulative ESALs and crack progression were recalculated from the overlay year to determine the subsequent overlay timing, instead of applying a fixed maintenance cycle. The application of the framework yielded an average lifecycle GHG emission of 1,294 t CO₂eq./km, with a standard deviation of 284 t CO₂eq./km. The proposed framework provides a basis for a consistent lifecycle GHG assessment and design-stage environmental evaluation of concrete pavement highways.
1. 서론
1.1. 연구 배경
1.2. 연구 목적 및 범위
2. 연구 내용
2.1. 전과정평가
2.2. 시스템 경계 조건 및 투입량 결정
2.3. 생애주기 단계벌 평가 방법
3. 결과 분석
4. 결론
감사의 글
REFERENCES
