Towards Carbon Neutrality： An LCA-based Assessment and Reduction Pathways for Prefabricated Components in a Semiconductor Facility
カーボンニュートラルに向けて：半導体施設におけるプレハブ部材のLCAに基づく評価と削減経路 (AI 翻訳)
H. Tai, He Yang, Mu-Chun Liao, Yang Liu, Jun-Chen Chen
🤖 gxceed AI 要約
日本語
半導体製造施設のプレハブ部材生産を対象にLCAと排出係数法を用いて炭素排出を評価。コンクリートと鉄鋼が全体排出量の82.7%を占めることを特定。低炭素セメントや太陽光発電の統合、CO₂鉱化養生や森林炭素吸収源などの技術・経済・政策を統合した経路を提案。2030年までに累積6～8億トンのCO₂e削減が可能と試算。
English
This study conducts a life cycle assessment of carbon emissions from prefabricated component production for a semiconductor facility. Concrete and steel account for 82.7% of total emissions (10,794 and 2,285 tCO₂e, respectively). An integrated technology-economy-policy pathway is proposed, including low-carbon cement, photovoltaic integration, CO₂ mineralization curing, and forestry sinks, which could reduce electricity-related emissions by 35% and yield an additional 17% annual reduction. The framework is projected to cumulatively reduce 600–800 million tCO₂e by 2030, contributing 19% to the construction sector's carbon peak target.
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
日本では建設分野の脱炭素化が急務であり、SSBJや有報での開示が進む中、本論文のLCAフレームワークはプレハブ建築のカーボンフットプリント定量化に有用。半導体産業は日本の基幹産業であり、工場建設時の排出削減は投資家対応や統合報告にも直結する。
In the global GX context
This paper provides a quantitative framework for assessing and reducing embodied carbon in prefabricated construction, relevant to global initiatives like TCFD/ISSB for reporting scope 3 emissions. The case study of a semiconductor facility demonstrates actionable pathways that can be adopted by the construction industry worldwide to meet decarbonization targets.
👥 読者別の含意
🔬研究者:Provides a comprehensive LCA methodology and quantified reduction pathways for prefabricated components, useful for further research in construction decarbonization.
🏢実務担当者:Offers a practical framework for construction companies to assess and reduce emissions from prefabricated components, including specific technical innovations and carbon offset strategies.
🏛政策担当者:Supports setting carbon peak targets for the construction sector with evidence from a concrete case study, highlighting the potential contribution of prefabricated buildings.
📄 Abstract（原文）
Within the context of global carbon neutrality initiatives, prefabricated buildings are recognized for their pivotal role in decarbonizing the construction sector. However, the manufacturing of their components remains a carbon-intensive process. This study conducts a systematic assessment of carbon emissions from prefabricated component production for a semiconductor manufacturing facility, employing Life Cycle Assessment (LCA) and emission factor methods. The results identify concrete and steel production as the dominant sources, collectively contributing 82.7% of total emissions (10,794 tons and 2,285 tons CO₂e, respectively). An integrated "technology-economy-policy" pathway is proposed. Technical innovations, including low-carbon cement substitution and photovoltaic power integration, could abate electricity-related emissions by 35%. Complementary carbon offset strategies, such as CO₂ mineralization curing and forestry carbon sinks, could yield an additional annual reduction of 17%. The implementation of this framework is projected to cumulatively reduce 600–800 million tons of CO₂e by 2030, contributing 19% to the construction sector's carbon peak target. This research provides a quantitative framework and actionable insights for the low-carbon transition of prefabricated buildings, facilitating a sectoral shift from scale expansion toward quality and efficiency.
🔗 Provenance — このレコードを発見したソース
- semanticscholar https://doi.org/10.70693/jggs.v1i1.105first seen 2026-06-29 06:41:02
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