Design-based life cycle assessment of flexible pavements to evaluate embodied carbon footprint
フレキシブル舗装の設計ベースのライフサイクルアセスメントによるエンボディドカーボンフットプリント評価 (AI 翻訳)
Praveen Bodhanam S, Ramu Baadiga
🤖 gxceed AI 要約
日本語
本論文は、フレキシブル舗装を対象に、設計段階での介入によるカーボンフットプリント削減を評価するライフサイクルアセスメント（LCA）フレームワークを提案する。従来舗装とジオグリッド補強舗装を比較し、材料生産と製造が全排出量の半分以上、輸送が3分の1を占めることを示す。炭素排出削減係数（CERF）を導入し、ジオグリッド補強が全地盤条件下でエンボディドカーボンを削減することを実証した。
English
This paper proposes a life cycle assessment (LCA) framework integrating structural performance metrics to evaluate embodied carbon footprint in flexible pavements. Comparing conventional and geogrid-reinforced pavements, it finds material production and manufacturing contribute over half of total emissions, with transportation accounting for one-third. A carbon emission reduction factor (CERF) is introduced, demonstrating that geogrid reinforcement reduces embodied carbon across all subgrade conditions.
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
日本では社会インフラの老朽化とGX推進が課題であり、本手法は舗装設計の段階で炭素排出を定量化・削減する実践的道筋を提供する。特に、材料選択や輸送方法の最適化に資するLCAフレームワークは、日本の公共工事での環境配慮評価に応用可能である。
In the global GX context
Globally, embodied carbon in infrastructure is a growing focus under frameworks like ISSB and CSRD. This study provides a practical LCA method integrating structural performance, which can help road authorities and construction firms quantify and reduce carbon footprints in pavement design. The carbon emission reduction factor offers a simple metric for comparing materials.
👥 読者別の含意
🔬研究者:Provides a novel integration of structural performance (MIF) with LCA for pavements, offering a replicable framework for embodied carbon assessment.
🏢実務担当者:Offers a decision-support tool for pavement designers to select materials (e.g., geogrid) that reduce embodied carbon while maintaining structural performance.
🏛政策担当者:Supports development of carbon reduction targets for infrastructure projects by providing a standardized LCA approach for pavements.
📄 Abstract（原文）
Material-intensive infrastructure systems, such as flexible pavements, offer significant opportunities for reducing resource consumption and associated life-cycle environmental impacts through design-level interventions. This study integrates structural performance metrics, specifically modulus improvement factor (MIF), into life cycle assessment (LCA) decision-making for pavements. The life cycle carbon emissions of conventional and sustainably reinforced pavements were evaluated. Besides, the inclusion of acidification potential and abiotic fossil resource depletion was evaluated for pavement at the material stage. Further, sensitivity analysis and field verification were performed. Results reveal that material production and manufacturing contribute more than half of total emissions, while transportation contributes to one-third, with the least at the construction stage. A carbon emission reduction factor (CERF) was formulated to compare reinforced and unreinforced materials, demonstrating that geogrid inclusion reduces embodied carbon across all subgrade conditions. The proposed LCA framework demonstrates a practical pathway for structural benefits along with sustainability evaluation into pavement design.
🔗 Provenance — このレコードを発見したソース
- semanticscholar https://doi.org/10.1038/s41598-026-47498-3first seen 2026-06-29 06:34:39
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