Application of Graphite Tailings in Concrete Manufacturing: A Review
グラファイト尾鉱のコンクリート製造への応用：レビュー (AI 翻訳)
Shan Gao, Jicheng Xu, Sijia Zhou, Man Xu, Honghao Li
🤖 gxceed AI 要約
日本語
本レビューは、グラファイト尾鉱（GT）をコンクリートの細骨材として利用する研究を整理した。GTは自然砂と類似の特性を持ち、10～20%の置換率で作業性、強度、耐久性が向上する。また、炭素含有による導電性を活かした融雪や構造ヘルスモニタリングへの応用可能性も示された。しかし、構造部材としての性能研究は限られており、今後の地震性能評価と設計手法の確立が課題である。
English
This review consolidates research on using graphite tailings (GT) as fine aggregate in concrete. GT has properties similar to natural sand, and a replacement rate of 10-20% optimizes workability, mechanical strength, and durability. The carbon content also enables functional applications like de-icing and structural health monitoring. However, studies on structural behavior are limited, and further research on seismic performance and design methods is needed.
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
日本では鉱山廃棄物の処理やコンクリート産業の脱炭素が進む中、本レビューはGTを活用した持続可能な建設材料の可能性を示しており、国内の資源循環や環境負荷低減に資する知見を提供する。
In the global GX context
This review contributes to the global discussion on sustainable construction by demonstrating how graphite tailings can replace natural aggregates in concrete, reducing waste and carbon footprint. It aligns with circular economy principles and has potential for functional applications in infrastructure.
👥 読者別の含意
🔬研究者:Materials scientists and civil engineers interested in sustainable concrete alternatives can use this review as a foundation for further experimental and structural studies.
🏢実務担当者:Concrete manufacturers may consider incorporating graphite tailings as a partial replacement for fine aggregates, but should note the need for structural testing.
🏛政策担当者:Policymakers focusing on waste management and green construction standards can reference this review to support tailings utilization in building codes.
📄 Abstract（原文）
Large-scale mining of graphite, a crucial strategic mineral, generates substantial amounts of graphite tailings (GT). The stockpiling of this solid waste occupies vast land resources and poses persistent environmental risks due to potential heavy metal leaching. Repurposing GT into construction materials presents a promising solution, with its use as a partial replacement for fine aggregates in cementitious composites being one of the most effective methods. This review systematically consolidates current research on graphite tailings cement mortar (GTCM) and graphite tailings concrete (GTC). Due to its physicochemical properties comparable to natural sand, GT is suitable for producing building materials. Studies consistently demonstrate that a substitution level of 10% to 20% optimizes overall performance. This optimal range enhances particle packing, promotes cement hydration via pozzolanic activity, and refines the microstructure, leading to improved workability, superior mechanical strength, and enhanced durability, including resistance to permeability, freeze–thaw cycles, and chemical attacks. Moreover, the inherent carbon content imparts electrical conductivity to GTC, enabling functional applications like de-icing and structural health monitoring. The successful utilization of GT also extends to lightweight foamed and autoclaved aerated concrete. However, research on the structural behavior of GTC components remains limited. Preliminary findings on beams and columns are encouraging, but comprehensive studies on their seismic performance and design methodologies are urgently needed to facilitate the widespread engineering application of this sustainable material and mitigate the environmental impact of tailings accumulation.
🔗 Provenance — このレコードを発見したソース
- semanticscholar https://doi.org/10.3390/ma19030641first seen 2026-06-29 07:36:33
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