← 論文一覧に戻る

Red Mud as a Supplementary Cementitious Material for Low-Carbon Buildings: Interfacial Bonding, Structural Strength, and Environmental Benefits

低炭素建築物のためのレッドマッドの補助セメント材料としての利用：界面結合、構造強度、環境便益 (AI 翻訳)

Huazhe Jiao, Yongze Yang, Yixuan Yang, Tao Rong, Mingqing Huang, Yuan Fang, Zhenlong Li, Zhe Wang, Yu Zheng, Xu Chang

Buildings📚 査読済 / ジャーナル2026-04-27#エネルギー転換Origin: Global経営インパクト: コスト削減対象セクター: construction
DOI: 10.3390/buildings16091717
原典: https://doi.org/10.3390/buildings16091717
📄 PDF

🤖 gxceed AI 要約

日本語

本レビューは、レッドマッド（RM）をセメント代替材料として利用するための理論的・実践的基盤を提供する。CO2鉱化による前処理、界面結合メカニズム、アルカリ活性化経路を整理し、重金属固定化（>95%）とGWP削減（50-80%）を実証。将来のML最適化と3Dプリンティングへの展望も示す。

English

This review provides a theoretical and practical foundation for using red mud (RM) as a supplementary cementitious material. It clarifies CO2 mineralization pretreatment, interfacial bonding mechanisms, and alkali-activation pathways, demonstrating heavy metal immobilization (>95%) and GWP reduction (50-80%). Future ML optimization and 3D printing prospects are also outlined.

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

日本の建設業界はカーボンニュートラル達成に向け、セメント代替材料の開発が急務。本レビューは、国内のアルミ精製副産物であるRMの有効活用と、CO2鉱化による炭素固定の可能性を示し、建設分野のGX推進に資する。

In the global GX context

This review contributes to global efforts to decarbonize the construction sector, aligning with ISSB/CSRD disclosure trends by quantifying GWP reductions and environmental benefits. It offers a roadmap for upcycling industrial waste into low-carbon building materials, relevant for transition finance and green building standards.

👥 読者別の含意

🔬研究者:Provides a comprehensive mechanistic understanding of RM-based cementitious materials, bridging atomic-level bonding to macro performance.

🏢実務担当者:Offers actionable insights for incorporating RM into concrete mixes, with quantified environmental and durability benefits.

🏛政策担当者:Highlights the potential of RM as a low-carbon construction material, supporting circular economy and decarbonization policies.

📄 Abstract（原文）

The global construction industry urgently requires sustainable alternatives to ordinary Portland cement (OPC) to mitigate its immense carbon footprint. Red mud (RM), a highly alkaline bauxite residue, presents tremendous but challenging potential as a supplementary cementitious material. This review systematically bridges the gap between atomic-level interfacial bonding mechanisms and macroscopic engineering performance, highlighting how these properties are significantly dictated by specific RM sources (e.g., Bayer vs. Sintering processes). We first elucidate advanced pretreatment strategies, notably CO2 mineralization, which synergistically mitigates extreme alkalinity and sequesters carbon. Crucially, the fundamental bonding mechanisms are decoded: beyond physical filling, RM integration induces significant micro-morphological densification via intense aluminosilicate depolymerization—evidenced by the Al[VI] to Al[IV] coordination shift—and the quantitative integration of approximately 40% reactive iron phases into stable Fe-S-H networks. By clearly distinguishing between traditional hydration and clinker-free alkali-activation pathways, we evaluate holistic structural parameters beyond mere 28-day compressive strength (40–67 MPa), explicitly addressing flexural capacity, modulus of elasticity, and volume stability. Environmental assessments confirm exceptional heavy metal immobilization (>95% efficiency, leaching < 0.010 mg/L) and a substantial 50–80% reduction in Global Warming Potential (GWP), provided the environmental burden of alkaline activators is rigorously accounted for. Furthermore, the long-term risk of Alkali–Silica Reaction (ASR) is evaluated as a primary durability concern. Finally, to overcome persistent rheological bottlenecks, this paper highlights transformative future trajectories, particularly data-driven Machine Learning (ML) for complex mix optimization and 3D concrete printing for advanced infrastructure. Ultimately, this review provides a robust theoretical foundation and a pragmatic roadmap for upcycling RM into safe, high-performance, and ultra-low-carbon building materials.

🔗 Provenance — このレコードを発見したソース

🔔 こうした論文の新着を逃したくない方は キーワードアラート に登録（無料・3キーワードまで）。

gxceed は公開メタデータに基づく研究支援データセットです。要約・翻訳・解説は AI 支援で生成されています。 最終的な解釈・検証は利用者が原典資料に基づいて行うことを前提とします。