持続可能な建築のためのホールライフサイクル評価：現行応用、炭素評価、今後の研究方向
Whole-life cycle assessment for sustainable buildings: current applications, carbon evaluation and future research directions (原題)
Úrsula Maíra Maciel Rigon Leão
🤖 gxceed AI 要約
日本語
2021〜2025年の20件の査読論文を統合し、建築物のホールライフサイクル炭素評価（WLCA）の現状を整理したレビュー。電力網の脱炭素化に伴い、高効率建築では embodied carbon が最大80%を占め、構造材（A1-A3）が主要ホットスポットとなる。BIMとAIの統合は環境インベントリ作成時間を最大91.5%短縮し得るが、方法論の標準化不足、EPDの地域格差、Module Dの定量化困難などの障壁が残る。
English
A critical review of 20 peer-reviewed studies (2021–2025) mapping whole-life cycle assessment (WLCA) for buildings. As grids decarbonize, embodied carbon dominates—up to 80% of lifecycle emissions in high-efficiency buildings—with structural materials (A1–A3) as key hotspots. BIM and AI integration can cut inventory modeling time by up to 91.5%, but standardization gaps, EPD regional disparities, and Module D quantification remain barriers.
Unofficial AI-generated summary based on the public title and abstract. Not an official translation.
📝 gxceed 編集解説 — Why this matters
日本のGX文脈において
建築物のScope 3（embodied carbon）算定はSSBJ・有報のサプライチェーン開示と直結する。EPDの地域格差は日本企業の建設資材調達・開示対応における実務課題であり、BIM/AI活用による算定効率化は国内建設業のGX対応コスト低減に示唆を与える。
In the global GX context
Embodied carbon accounting aligns with ISSB/CSRD Scope 3 building-sector disclosure and the growing focus on whole-life carbon in EU building regulation. The review highlights EPD harmonization and Module D circularity as unresolved global disclosure-infrastructure gaps.
👥 読者別の含意
🔬研究者:建築LCAにおけるembodied carbon支配化とBIM/AI統合の研究フロンティアを整理する基礎資料となる。
🏢実務担当者:建設・不動産のサステナビリティ担当が、Scope 3建築炭素のホットスポット把握とBIM/AIによる算定効率化の可能性を検討する際に有用。
🏛政策担当者:建築物のwhole-life carbon規制やEPD標準化を検討する際、方法論の標準化不足と地域格差への政策的対応の必要性を示す。
📄 Abstract（原文）
The urgent need to decarbonize the built environment has accelerated a methodological shift from operational-focused product-level Life Cycle Assessment (LCA) to comprehensive Whole-Life Cycle Assessment (WLCA). This paper presents an integrated and critical review synthesizing 20 cutting-edge peer-reviewed studies published between 2021 and 2025. The objective is to map current applications, evaluate embodied carbon hotspots, and examine the integration of circular economy principles and digital technologies in building assessment. Methodology consisted of structure analysis and evidence synthesis across the selected literature. Results show that as electrical grids decarbonize, embodied carbon increasingly dominates the lifecycle footprint, representing up to 80% of total emissions in high-efficiency buildings, with structural materials (modules A1-A3) identified as primary hotspots. While the integration of Building Information Modeling (BIM) and Artificial Intelligence (AI) can reduce environmental inventory modeling times by up to 91.5%, severe barriers persist. These include lack of methodological standardization, interoperability bottlenecks, regional disparities in Environmental Product Declarations (EPDs), and difficulties in quantifying Module D circular benefits. We conclude that achieving effective decarbonization requires transitioning from static, operational-only models to dynamic, multi-dimensional, and digitally integrated whole-life frameworks.
🔗 Provenance — このレコードを発見したソース
- semanticscholar https://www.eassjournal.org/index.php/engineeringsciences/article/download/8938/5086first seen 2026-11-13 06:00:44
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