ジオポリマーモルタルと砂の界面せん断挙動の実験的および数値的解析
Furkan Bayındır1, Enes Ekinci2, Talha Sarıcı1
1Department of Civil Engineering, Inonu University, Malatya, Turkey.
Scientific reports
|January 31, 2026
まとめ
本研究では、土壌界面せん断性能を強化するためにジオポリマーモルタル（GPM）の製造を最適化しました。破砕石骨材と低いアルカリ/バインダー比は、GPM特性と砂質土との摩擦を大幅に改善しました。
科学分野:
- 土木工学;材料科学;持続可能な建設
背景:
- ジオポリマーモルタル（GPM）は、従来のセメントに代わる持続可能な選択肢を提供します。;地盤工学プロジェクトでの応用には、GPMと土壌との界面特性の理解が不可欠です。;製造パラメータは、GPMの機械的および物理的特性に大きく影響します。
主な方法:
- ジオポリマーモルタル（GPM）試料は、様々なNaOH濃度（5-15 M）、骨材の種類（河川骨材、破砕石、建設および解体廃棄物）、およびアルカリ/バインダー比（0.5-0.6）で調製されました。;硬化GPMサンプルに対して圧縮強度、吸水率、超音波パルス速度（UPV）試験を実施しました。;GPM-砂質土界面のせん断強度を決定するために直接せん断ボックス試験を実施しました。;ABAQUSの有限要素法（FEM）モデリングを使用して、土壌-GPM相互作用をシミュレートしました。
結論:
- 製造パラメータ、特にNaOH濃度、骨材の種類、アルカリ/バインダー比は、GPM特性に критически 影響します。;最適化されたGPM処方は、土壌界面のせん断性能を大幅に向上させます。;検証済みのFEMモデルは、さらなる設計最適化のために土壌-GPM相互作用を確実に予測できます。
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