コール・ガンゲーベースのジオポリマー発泡コンクリートの混合設計最適化
Dan Wang1, Wendong Shan2, Rongjie Li1
1School of Architectural Engineering, Hulunbuir University, Hulunbuir 021008, China.
Materials (Basel, Switzerland)
|August 28, 2025
まとめ
この研究では,炭鉱のゴングとスラグを使用して,ジオポリマー発泡コンクリートを最適化しました. 最高の混合物は2.30MPaの圧縮強度と低熱伝導性を達成し,寒い地域での絶熱に理想的です.
科学分野:
- 材料科学
- 土木工学
- 持続可能な建設
背景:
- 地質ポリマーコンクリートは 伝統的なポートランドセメントの 持続可能な代替品です
- 石炭のゴングーとスラグは,建築材料に使用される可能性のある産業副産物です.
- エネルギー効率の良い建物には 軽量で 耐久性のある材料の開発が不可欠です
研究 の 目的:
- 石炭ガングーとスラグを用いた新しい地ポリマー発泡コンクリートの開発と最適化.
- 混合物比率が機械的および熱的性質に及ぼす影響を調査する.
- 統合された保温と負荷を担うアプリケーションの最適な組み合わせを決定する.
主な方法:
- 化合物アルカリ活性化剤 (シリケートナトリウムと水酸化ナトリウム) を用いて,炭鉱とスラグを前駆体として使用した.
- 混合比率の最適化のために応答表面方法論内のBox-Behnken設計を使用した.
- スキャニング電子顕微鏡を用いて微細構造の特徴を分析し,28日間の圧縮強さと熱伝導性を特徴付けました.
主要な成果:
- 泡の含有量は,機械的および熱的性能の両方に重大な影響を及ぼします.
- ナトリウムシリケートモジュールと泡の含有量の相互作用が,最も有意な結合効果を示した.
- 最適化された混合物 (9.1%のアルカリアクティバター,1.07のモジュール,0.44の水/結合剤,50%の泡) は,圧縮強度2.30MPaと熱伝導率0.0781W/m·Kを生成した.
結論:
- 最適化されたジオポリマー発泡コンクリートは,強度と耐熱性のバランスを示しています.
- 性能の向上は,毛穴構造の異質性の増加と関連しています.
- 開発された材料は,非常に寒い地域での統合された熱絶縁と耐圧壁の用途に適しています.
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