レッド・ムッド・フライ・アッシュ・コール・ガンゲー・ターナーリ・ソリッド・ワスト・コンクリート (RFCTSWC) の性能の進化を左右するシネージスティック・スレッジ
Jin Qu1,2,3, Yujie Tian1, Jiale Liu1
1College of Agricultural Engineering, Shanxi Agricultural University, Jinzhong 030800, China.
Materials (Basel, Switzerland)
|August 28, 2025
まとめ
この研究は,産業廃棄物を利用するために赤い泥 (RM),フライアッシュ (FA) と石炭ガングー (CG) アグレガートを使用する新しいコンクリートを導入します. 最適な混合設計は,高い圧縮強度と耐久性を達成し,持続可能な建築材料のソリューションを提供します.
科学分野:
- 材料科学
- 土木工学
- 環境科学
背景:
- 赤い泥 (RM) と炭鉱 (CG) の大規模な蓄積は環境リスクをもたらします.
- 産業用固体廃棄物の高価値利用の需要が増加しています.
- 持続可能な建築材料の開発は 環境保護と資源管理に不可欠です
研究 の 目的:
- RM,FA,CGの混凝土を組み込む三元的なコンクリートシステムの開発と調査.
- RM含量,FA含量,CG総置換率,水と結合物質の比率がコンクリートの性質に及ぼす影響を体系的に分析する.
- この新しいコンクリートの性能に影響を与える 根本的なマイクロメカニズムを明らかにします
主な方法:
- 材料の特性を調べるための正方形の実験設計.
- 電子顕微鏡 (SEM) とエネルギー分散光譜 (EDS) を使って微細構造を分析する.
- 機械的特性試験,可動性評価,凍り付く耐久性の評価
主要な成果:
- 作業能力は主に水と結合物質の比率によって影響され,FAは流動性を高めます.
- 最適な圧縮強度 (24.96 MPa) は,20%のRMと45%のFAと20%のCGの代用で達成される.
- 耐凍性は,RMとFAの含有量が増加するにつれて劣化し,高含有量の混合物は,より早く故障限界に近づきます.
結論:
- 赤い泥,フライアッシュ,石炭の混凝土 (RFCTSWC) の性能を最適化するために,シネジスティックな値が存在します.
- 開発されたコンクリートシステムは,産業用固体廃棄物の高価値利用の可能性を示しています.
- 微細構造分析は,優れたC-S-Hゲルの均一性と,最適の混合比率での多孔性を確認し,エンジニアリングアプリケーションをサポートしています.
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