使用纳米添加剂轻质水泥砂的生命周期评估和多参数优化
Yiying Du1, Aleksandrs Korjakins2, Maris Sinka2
1Laboratory of Concrete Technology, Institute of Building Materials, Vilnius Gediminas Technical University, Linkmenu Str. 28, LT-08217 Vilnius, Lithuania.
Materials (Basel, Switzerland)
|September 14, 2024
概括
这项研究优化了可持续的轻质水泥砂,使用飞灰层和纳米添加剂. 最优的混合物结合了与0.05%的多壁碳纳米管和0.02%的纳米二氧化的半球层,以提高性能和可持续性.
科学领域:
- 材料科学 材料科学 材料科学
- 土木工程 土木工程是指土木工程.
- 可持续发展 可持续发展 可持续发展
背景情况:
- 对可持续建筑材料的日益增长的需求需要评估超出工程属性.
- 生命周期评估和多标准优化对于新型建筑材料至关重要.
- 飞灰色球和纳米添加剂为增强水泥复合材料提供了潜力.
研究的目的:
- 开发和优化一种绿色,可持续,轻量级的水泥砂,使用飞灰.
- 研究多壁碳纳米管和纳米二氧化对机械性能的协同效应.
- 通过生命周期评估和成本分析来评估环境和经济可行性.
主要方法:
- 作为轻质水泥砂的精细聚合物,利用了层.
- 嵌入式多壁碳纳米管 (MWCNTs) 和纳米二氧化 (NS) 在不同的百分比.
- 进行了曲和压力强度测试.
- 进行了摇篮到门的生命周期评估和直接成本分析.
- 采用TOPSIS方法进行多标准优化.
主要成果:
- 纳米添加剂协同改善了迫击炮的机械性能.
- 热层利用减少了环境影响,提高了经济可行性.
- MWCNTs增加了材料成本,表明与纳米二氧化的平衡.
- 确定的最佳混合物是0.05%的MWCNT和0.02%的纳米二氧化.
结论:
- 开发的轻质水泥砂为建筑行业提供了一个可持续的替代方案.
- 二元添加纳米添加剂,特别是纳米二氧化,可以减轻MWCNTs的成本增加.
- 多标准优化成功确定了一种高性能和可持续的砂混合物.
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