Materials Pathways for Low-Carbon Construction: A Systematic Review of Bio-Based, Recycled, and Alternative Cementitious Systems
低炭素建設のための材料経路：バイオベース、リサイクル、代替セメント系材料の系統的レビュー (AI 翻訳)
Hugo Martínez Martínez Ángeles, Cesar Augusto Navarro Navarro Rubio, José Gabriel Ríos Ríos Moreno, Margarita G. Garcia-Barajas, Roberto V. Carrillo‐Serrano, José Luis Reyes Reyes Araiza, Ernesto Chavero-Navarrete, Mario Trejo Trejo Perea
🤖 gxceed AI 要約
日本語
本レビューは、低炭素建設材料（バイオベース、リサイクル材、代替セメント）に関する2018～2026年の研究をPRISMA法で系統的に評価。低炭素セメントでCO2排出量10～75%削減、木材・竹で28～70%削減のポテンシャルを示す一方、リサイクル材は輸送距離や加工工程に依存。機械性能と環境性能のトレードオフも明らかになり、単一素材代替より統合的ハイブリッド戦略が効果的と結論。
English
This systematic review (PRISMA 2020) evaluates low-carbon construction materials from 2018-2026. It finds that low-carbon cement reduces CO2 by 10-75%, engineered timber and bamboo by 28-70%, while recycled aggregate performance depends on transport and processing. Trade-offs between mechanical and environmental performance exist. Integrated hybrid strategies maximize sustainability gains over single material substitution.
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
日本の建設業界は2050年カーボンニュートラル目標を掲げ、グリーン調達や建築物の省エネ基準強化が進む。本レビューは国産木材やリサイクル材の活用、新たな低炭素セメント導入の根拠として有用。GX実現に向けた材料選択のエビデンスベースを提供する。
In the global GX context
Globally, construction accounts for ~40% of CO2 emissions. This review directly supports ISSB/TCFD disclosures on embodied carbon and transition finance for green building. It provides a comparative evidence base for low-carbon materials, relevant to CSRD and SEC climate rules, and identifies implementation challenges for scaling alternative cementitious systems and bio-based materials.
👥 読者別の含意
🔬研究者:Provides a comprehensive, up-to-date synthesis of material pathways and performance trade-offs, highlighting research gaps in durability and LCA standardization.
🏢実務担当者:Offers actionable comparisons of carbon reduction potential and mechanical performance for selecting low-carbon materials in construction projects.
🏛政策担当者:Informs building codes, green procurement policies, and subsidies for low-carbon materials by quantifying emissions reductions and circular economy benefits.
📄 Abstract（原文）
The construction sector is responsible for significant global energy consumption and CO2 emissions, largely driven by carbon-intensive materials such as ordinary Portland cement and steel. In response to increasing decarbonization and circular economy demands, several strategically relevant categories of sustainable construction materials have been developed, particularly natural and bio-based systems, recycled and waste-derived materials, low-carbon cementitious binders, and emerging multifunctional composites. However, research remains fragmented across material classes and performance metrics. This systematic review evaluates advances published between 2018 and 2026 following the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) 2020 methodology. Peer-reviewed studies were systematically identified and analyzed to compare mechanical performance, durability, embodied carbon reduction, and life-cycle environmental impacts across these selected material pathways. The results indicate substantial decarbonization potential. Low-carbon cementitious materials report CO2 reductions of approximately 10–75% relative to conventional systems, while engineered timber and bamboo demonstrate 28–70% lower carbon footprints due to reduced embodied energy and biogenic carbon storage. Recycled aggregates and industrial by-products enhance circularity but remain sensitive to transport distance and processing intensity. Trade-offs between mechanical capacity and environmental performance are evident in lightweight and bio-based systems. Overall, sustainability gains are maximized through integrated hybrid construction strategies rather than isolated material substitution. This review provides a comparative evidence-based synthesis and identifies key research gaps and implementation challenges for accelerating low-carbon construction.
🔗 Provenance — このレコードを発見したソース
- openalex https://doi.org/10.3390/infrastructures11050158first seen 2026-05-17 06:02:19 · last seen 2026-05-20 05:10:19
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