Hussein M. Hamada , Farid Abed , Zaid A. Al-Sadoon , Adnan Alashkar
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引用次数: 0
摘要
这项研究探讨了如何通过机械处理提高粉煤灰(FA)的性能,以实现可持续建筑应用并减少二氧化碳(CO2)排放。粉煤灰是发电过程中煤炭燃烧的副产品,其本质上具有有限的胶凝活性。本研究评估了通过干法和湿法研磨处理减小粒度对 FA 的水合作用的影响。该研究的比较分析涉及三种 FA 变体:未经处理的原材料、干法研磨和湿法研磨 FA。广泛的表征包括化学成分、物理性质和微观结构特征。结果表明,磨碎的 FA 具有明显改善的水青石活性,湿磨在粒度减小(与未加工的 FA 相比减小了 98%)和水青石反应性方面都取得了卓越的成果。比较评估强调了湿法研磨在提高 FA 作为可持续建筑材料的性能方面优于干法研磨和未经处理的 FA 的功效。鉴于这些发现,该研究主张继续探索 FA 的处理方法,以优化其在生态友好型建筑实践中的效用。
Enhancing pozzolanic activity of fly ash via dry and wet milling: A comparative study for sustainable construction material enhancement
This investigation delineates the enhancement of fly ash (FA) properties through mechanical treatments for sustainable construction applications and reducing carbon dioxide (CO2) emissions. FA, a byproduct of coal combustion in power generation, inherently exhibits limited pozzolanic activity. This research evaluates the impact of particle size reduction via dry and wet milling treatments on FA's pozzolanic behavior. The study's comparative analysis involves three FA variants: untreated raw material, dry-milled, and wet-milled FA. Extensive characterization encompassed chemical composition, physical properties, and microstructural features. Results demonstrate a marked improvement in pozzolanic activity in milled FAs, with wet milling yielding superior outcomes in particle size reduction (98% diminution compared to raw FA) and pozzolanic reactivity. The comparative assessment underscores wet milling's efficacy over dry milling and untreated FA in enhancing FA's performance as a sustainable construction material. In light of these findings, the study advocates for continued exploration of FA treatments, aiming to optimize their utility in eco-friendly construction practices.
期刊介绍:
The Journal of CO2 Utilization offers a single, multi-disciplinary, scholarly platform for the exchange of novel research in the field of CO2 re-use for scientists and engineers in chemicals, fuels and materials.
The emphasis is on the dissemination of leading-edge research from basic science to the development of new processes, technologies and applications.
The Journal of CO2 Utilization publishes original peer-reviewed research papers, reviews, and short communications, including experimental and theoretical work, and analytical models and simulations.