スクラップアルミニウムエンジン残留で強化された泡コンクリートの微細構造と機械的特徴
1Department of Civil and Environmental Engineering, College of Engineering, Majmaah University, Al Majmaah, 11952, Saudi Arabia. a.alzlfawi@mu.edu.sa.
Scientific reports
|August 29, 2025
まとめ
スクラップアルミニウムエンジン残留物 (SAER) は,発泡コンクリート (FC) の性質を大幅に改善します. 2.5%のSAER添加は機械的強度と耐熱性を最大限に高め,軽量化に最適です.
科学分野:
- 材料科学
- 土木工学
- 持続可能な建設
背景:
- 発泡コンクリート (FC) は多用途の軽量材料です.
- スクラップ・アルミニウム・エンジン・レジデュ (SAER) のような産業副産物をリサイクルすることで,持続可能性が促進されます.
- リサイクルされた材料でFCの性能を最適化することは,建設革新にとって極めて重要です.
研究 の 目的:
- 発泡コンクリートの新鮮性,機械性,熱性,微細構造性に対するSAERの影響を調査する.
- FC性能を高めるための最適なSAER含有量を決定する.
- 発泡コンクリートの生産における持続可能な添加物としてのSAERを評価する.
主な方法:
- 発泡コンクリートの試料は,異なるSAER比率 (1.5%,2.5%,5.0%) を目標密度900kg/m3と1100kg/m3で準備した.
- 新鮮密度,加工性,圧縮強度,屈折強度,熱伝導性を評価するために,標準のASTM試験が行われました.
- 微細構造分析はX線微分法 (XRD) とスキャニング電子顕微鏡 (SEM) を用いて行われました.
主要な成果:
- SAERの追加により,新鮮な密度と早期の膨張が改善されたが,加工能力は低下した.
- 圧縮力 (最大242. 9%) と屈折力 (最大68. 8%) で著しい改善を図った.
- 熱伝導性は44%まで低下し 絶熱性が向上したことを示しています XRDとSEMでは,2. 5%のSAERで微細構造の改善と毛穴の減少が確認されました.
結論:
- 2.5%のSAERは,発泡コンクリートの機械的強度と耐熱性能を最大化するための最適な用量です.
- SAERは泡コンクリートの性能を向上させ 建設に持続可能な代替手段を提供しています
- この研究は,工業廃棄物を利用して高性能の軽量セメント材料の開発の可能性を示しています.
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