ガーナの持続可能な都市開発のための竹とコンクリート建設の比較環境ライフサイクルアセスメントに向けて
Towards a Comparative Environmental Life Cycle Assessment of Bamboo and Concrete Construction for Sustainable Urban Development in Ghana (原題)
Joseph Ignatius Teye Buertey, Ana Catarina Jorge Evangelista
🤖 gxceed AI 要約
日本語
本研究は、ガーナにおける竹床とコンクリート床の環境ライフサイクルアセスメント（LCA）を比較した。クレードルから墓場まで60年の評価で、竹はコンクリートに比べ地球温暖化係数（GWP）が約92%低く、酸性化・富栄養化でも大幅な改善を示した。急速な都市化地域でのバイオベース建材の採用が、排出削減と都市ヒートアイランド緩和に有効であることを示唆する。
English
This study compares the environmental life cycle assessment (LCA) of bamboo and concrete floors in Ghana. Over a cradle-to-grave horizon of 60 years, bamboo shows about 92% lower global warming potential (GWP) than concrete, with significant improvements in acidification and eutrophication. The findings support adopting bio-based materials in rapidly urbanizing regions to reduce emissions and mitigate urban heat.
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、木造や竹などのバイオマス建材の活用が注目されている。本研究成果は、日本の建設業界におけるバイオベース素材の採用可能性を支持するエビデンスとなる。
In the global GX context
Globally, the construction sector's decarbonization is critical. This study provides empirical evidence from Ghana that bamboo can drastically reduce life-cycle emissions compared to concrete, supporting the global push for sustainable building materials and aligning with ISSB/CSRD disclosure trends.
👥 読者別の含意
🔬研究者:LCA手法の適用例として、バイオベース建材の環境優位性を定量的に示すデータを提供。
🏢実務担当者:建設会社や不動産開発業者は、持続可能な建材選択の根拠として活用できる。
🏛政策担当者:都市計画や建築基準におけるバイオマス建材の採用促進政策の参考になる。
📄 Abstract（原文）
The construction industry accounts for a substantial share of global greenhouse gas emissions, underscoring the need to explore sustainable building technologies. Bamboo is a rapidly growing renewable resource used in various building contexts, including structural and non-structural purposes, with properties equivalent to those of other conventional building materials. The objective of this research was to compare the environmental life cycle assessment impact of bio-based bamboo floor construction with that of conventional concrete floors using a cradle-to-grave and EoL of 60 years for both materials. Comparing the data extracted from the analysis of a square metre of floor system using bio-based construction materials, the LCIA, using the database Simapro 9.5, revealed that bio-based alternatives generally have lower environmental impacts compared to conventional materials. The study establishes that whereas the global warming potential carbon (GWPC) per square metre of concrete floor recorded a mid-point result of 160 kg CO2-eq, that for bamboo was 12 kg CO2-eq, with bamboo exhibiting additional carbon sequestration during the growth period. The mid-point result for the acidification potential was 0.68 kg SO2-eq and 0.12 kg SO2-eq for concrete and bamboo, respectively, with bamboo showing an 82% improvement over concrete. Again, the eutrophication potential revealed that bamboo showed a 78% improvement over concrete. When analysed within the context of rapidly urbanising regions like Ghana, these LCIA findings provide a strong empirical justification for substituting traditional grey building materials with bio-based structural composites. Concrete and steel remain highly exposed to supply chain energy premiums, given the high energy demands during the clinker and steel production phases. Transitioning urban building models to structurally engineered bamboo could successfully mitigate localised urban heat retention and lower municipal scope 3 emissions.
🔗 Provenance — このレコードを発見したソース
- openalex https://doi.org/10.3390/buildings16163299first seen 2026-08-22 05:08:17
- semanticscholar https://doi.org/10.3390/buildings16163299first seen 2026-08-23 05:08:02 · last seen 2026-09-22 04:55:00
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