基于指标的可持续性评估,使用AHP-TOPSIS-RSM框架,将家禽垃圾灰 (PLA) 作为补充的水泥材料
J R Nahuat-Sansores1, J C Cruz1, M Z Figueroa-Torres2
1Tecnológico Nacional de México/ I. T. de Chetumal, Av. Insurgentes 330, 77013, Chetumal, Q. Roo, México.
Environmental research
|March 9, 2026
概括
作为水泥替代品的家禽垃圾灰 (PLA) 提高了砂的强度,在10%的重量取代下,砂强度高达26.7%. 这种可持续的方法还减少了二氧化碳排放和成本,支持环保建筑材料.
科学领域:
- 可持续建筑材料科学 可持续建筑材料科学
- 在水泥复合材料中的废弃物回收利用.
- 来自生物质的补充性水泥材料.
背景情况:
- 脱碳水泥需要利用当地废物流来生产可持续材料.
- 禽垃圾灰 (PLA) 显示出作为补充水泥材料的希望,但其完全的可持续性尚未得到充分探索.
- 优化PLA的整合需要平衡机械,环境和经济因素.
研究的目的:
- 通过实验和多标准决策分析来评估二元PLA水泥砂的性能.
- 评估在600-800°C时化PLA (10-20%重量取代) 对压力强度,二氧化碳排放和成本的影响.
- 用可持续设计的分析框架优化和验证砂混合物.
主要方法:
- 在水泥砂中将PLA (在600-800°C烧焦) 加入10-20%的重量.
- 压力强度 (3-90天) 的评估,摇篮到门的二氧化碳排放,以及每平方米的生产成本.
- 应用分析层次的过程技术以类似于理想解决方案的优先顺序 (AHP-TOPSIS) 进行排名和中央复合设计响应表面方法 (CCD-RSM) 进行优化.
主要成果:
- 在600°C时化10%重量的PLA,使28天的压力强度增加了高达26.7%.
- 与参考砂相比,这种最佳混合物可减少4-9%的二氧化碳排放量和6-13%的生产成本.
- 较高的PLA比率导致稀释效应和弱化的界面过渡区,对长期性能产生负面影响.
结论:
- 最优的可持续砂配方包括在600°C时化10%重量的PLA.
- 综合的TOPSIS-RSM框架有效地平衡了机械增强与环境和经济效益.
- 这种方法支持对可持续砂设计的决策,与可持续发展目标9,11,12和13保持一致.
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