用陶废料粉和石灰尘对混凝土的生命周期评估:一个中印度案例研究
Amit Mandal1, Sarvesh P S Rajput1, Hemant Choudhary2
1Department of Civil Engineering, Maulana Azad National Institute of Technology, Bhopal, Madhya Pradesh, 462003, India.
Environmental research
|January 24, 2026
概括
这项研究表明,在混凝土中使用陶废料粉和石灰尘可以显著减少环境影响,从而支持印度.
科学领域:
- 环境科学 环境科学
- 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.
背景情况:
- 建筑和拆除废物对处置来说是一个很大的挑战.
- 可持续的混凝土生产对于减少建筑行业的环境足迹至关重要.
- 循环经济原则提供了一条减轻浪费和资源枯竭的途径.
研究的目的:
- 进行M60混凝土的摇篮到门的生命周期评估,使用废物部分替换水泥和沙子.
- 在印度中部条件下评估可持续混凝土的环境性能.
- 展示混凝土生产的循环经济方法.
主要方法:
- 使用OpenLCA v2.5和ReCiPe 2016中点 (H) 方法进行生命周期评估 (LCA).
- 将陶废料粉末 (15%) 和石灰尘 (45%) 作为水泥和沙子的替代品.
- 对18个影响类别的分析和运输参数的灵敏度分析.
主要成果:
- 在所有环境影响类别中观察到2.1-16.3%的下降.
- 显著减少陆地生态毒性 (16.3%),土地利用 (16.1%) 和气候变化 (12.5%) 的影响.
- 确定水泥生产是气候影响的主要热点;当地废物采购减少了18.1%的运输影响.
结论:
- 混凝土生产中的双重废物替代战略具有环境弹性,没有显示负担转移.
- 这种方法为可持续的混凝土制造提供了一个适合当地和可复制的系统.
- 该战略符合印度的低碳和循环经济目标,改善生态系统质量和人类健康结果.
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