Scholarlink

<p>This study investigates the effects of supplementary cementitious material and aluminum zinc oxide (AZO) nanoparticles on concrete performance. Ordinary Portland cement (OPC) was replaced with microsilica, metakaolin, clinoptilolite, and AZO to analyze mechanical properties and antibacterial effectiveness. Compressive strength, ultrasonic pulse velocity (UPV), rapid chloride penetration test (RCPT), and bacterial removal efficiency were evaluated. The optimal formulation (73.6% OPC, 19% microsilica, 4% metakaolin, 1% clinoptilolite, and 2.4% AZO) achieved superior 28-day compressive strength (31.65&#xa0;MPa), excellent homogeneity (index 0.975), and very low chloride penetrability. This composition demonstrated remarkable antibacterial properties, with up to 98.7% removal of methicillin-resistant Staphylococcus aureus after 30&#xa0;min of UV exposure, while maintaining practical application timeframes. AI/ML models were developed to predict concrete properties, with random forest (RF) showing the highest accuracy (R<sup>2</sup> &gt; 0.97). Feature importance analysis identified AZO content as the most significant predictor (32.8–36.9%) across all models. Microstructural characterization revealed that 2.4% AZO content enhanced surface hydrophobicity (contact angle 115.67°) and reduced porosity by 34.6%. This research establishes an optimal concrete formulation for mechanical properties and significant antibacterial capabilities for healthcare environments.</p> Graphical Abstract <p></p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

AI-enhanced reinforced concrete with SCM and AZO nanoparticles for superior mechanical and antibacterial performance

  • 期刊论文

  • 发表日期：

    2025年6月21日

查看全文
  • Amol Shivaji Mali,
  • Shailesh Ghodke,
  • Utkarsh Maheshwari,
  • Kirti Zare,
  • Vikas Pralhad Dive

摘要

This study investigates the effects of supplementary cementitious material and aluminum zinc oxide (AZO) nanoparticles on concrete performance. Ordinary Portland cement (OPC) was replaced with microsilica, metakaolin, clinoptilolite, and AZO to analyze mechanical properties and antibacterial effectiveness. Compressive strength, ultrasonic pulse velocity (UPV), rapid chloride penetration test (RCPT), and bacterial removal efficiency were evaluated. The optimal formulation (73.6% OPC, 19% microsilica, 4% metakaolin, 1% clinoptilolite, and 2.4% AZO) achieved superior 28-day compressive strength (31.65 MPa), excellent homogeneity (index 0.975), and very low chloride penetrability. This composition demonstrated remarkable antibacterial properties, with up to 98.7% removal of methicillin-resistant Staphylococcus aureus after 30 min of UV exposure, while maintaining practical application timeframes. AI/ML models were developed to predict concrete properties, with random forest (RF) showing the highest accuracy (R2 > 0.97). Feature importance analysis identified AZO content as the most significant predictor (32.8–36.9%) across all models. Microstructural characterization revealed that 2.4% AZO content enhanced surface hydrophobicity (contact angle 115.67°) and reduced porosity by 34.6%. This research establishes an optimal concrete formulation for mechanical properties and significant antibacterial capabilities for healthcare environments.

Graphical Abstract