Classification of Key Construction Materials in Life Cycle Assessment for Achieving Carbon-Neutral Buildings: A Meta-Analysis of 100 G-SEED Certified Projects
カーボンニュートラル建築達成のためのライフサイクルアセスメントにおける主要建設材料の分類：G-SEED認証プロジェクト100件のメタ分析 (AI 翻訳)
Sungmo Seo, Taehyoung Kim, Chang Chae, Jinchul Park
🤖 gxceed AI 要約
日本語
韓国G-SEED認証のLCA報告書100件を分析し、コンクリートが総質量の85%超を占めるなど、12の主要材料カテゴリが埋め込み炭素の大部分を占めることを特定。これらの高影響材料に焦点を当てることで、精度を維持しつつLCAを効率化できる分類枠組みを提案した。
English
This meta-analysis of 100 LCA reports from G-SEED certified buildings in South Korea identifies 12 key material categories—with concrete alone over 85% of total mass—that dominate embodied carbon. A classification framework is proposed to streamline LCA by focusing on these high-impact materials without compromising accuracy.
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
日本でもCASBEEやBELSによる建築物のライフサイクル炭素評価が進んでおり、本論文の材料分類手法は、日本の有報や統合報告書におけるGHG排出量算定の効率化にも応用可能である。特にサプライチェーン排出量（Scope3）の算定負荷軽減に示唆を与える。
In the global GX context
With embodied carbon becoming critical under global frameworks like ISSB and the EU's Level(s), this study provides a data-driven method to simplify building LCA. It offers a practical shortcut for practitioners worldwide, especially in markets where full material inventories are costly.
👥 読者別の含意
🔬研究者:This paper validates a material prioritization approach that can reduce LCA data requirements while maintaining accuracy, useful for methodology development.
🏢実務担当者:Use the identified 12 material categories to focus data collection and reduce the cost and time of carbon assessments for green building certification.
🏛政策担当者:Consider adopting a simplified material list for mandatory carbon reporting to lower compliance burdens while ensuring coverage of major emission sources.
📄 Abstract（原文）
As operational emissions decrease due to improved energy efficiency, reducing embodied carbon in buildings has become increasingly important. Life Cycle Assessment (LCA) is a widely used method to quantify these impacts. However, its implementation often remains data-intensive and time-consuming due to the need for detailed material inventories. This study analyzed 100 LCA reports submitted for G-SEED certification in South Korea to identify a core set of construction materials that accounts for the majority of total material mass. The findings revealed 12 key material categories—such as ready-mixed concrete, cement-based products, structural steel, wood, and interior finishes—that dominate embodied carbon contributions, with concrete alone comprising over 85% of the total mass. Based on these results, a material classification framework was developed according to functional role and carbon impact. By focusing on these high-impact materials, future LCA efforts can be significantly streamlined without compromising accuracy. This approach offers data-driven guidance for LCA practitioners, designers, and green building certification bodies aiming for efficient and reliable carbon assessments.
🔗 Provenance — このレコードを発見したソース
- openaire https://doi.org/10.20944/preprints202508.0442.v1first seen 2026-06-29 04:49:29 · last seen 2026-07-05 04:41:54
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