在建筑领域的创新应用中对聚合物洗泥的利用
Yury Villagran-Zaccardi1, Francisca Carreño2, Line Granheim3
1Materials and Chemistry Unit, Flemish Institute for Technological Research (VITO), 2400 Mol, Belgium.
Materials (Basel, Switzerland)
|October 16, 2024
概括
来自聚合物生产的泥可以被提升为建筑材料,如混凝土填充剂和3D打印前体. 对于补充性水泥材料和轻质聚合物的应用,需要进一步的研究.
科学领域:
- 材料科学 材料科学 材料科学
- 环境工程 环境工程
- 废物管理 废物管理
背景情况:
- 循环经济原则要求利用采矿废物,特别是聚合物生产的污泥.
- 制定废弃物终结 (EoW) 标准对于将这些污泥纳入建筑材料至关重要.
研究的目的:
- 探索聚合物生产污泥在建筑材料中的利用途径.
- 调查西班牙和挪威的监管框架和EdW标准.
- 评估污泥衍生材料适用于水泥制品和3D打印的适用性.
主要方法:
- 来自挪威 (受污染和未受污染) 和西班牙的污泥流的表征.
- 在混凝土中生产和测试基于污泥的填充剂.
- 评估烧焦污泥对补充水泥材料 (SCM) 的潜力.
- 开发基于污泥的轻质聚合物 (LWA).
- 使用污泥3D打印建筑材料的配方和测试.
主要成果:
- 基于泥的填充剂 (最多40%的粘合剂) 增强了混凝土的一致性和凝聚力.
- 污泥中的粘土含量增加了混凝土对水和超塑性剂的需求.
- 烧焦污泥在SCM应用中显示出有限的反应性.
- 低压电路生产表现有前途,但需要微观结构优化.
- 西班牙污泥促进了具有良好的可塑性3D打印混合物,需要进一步的添加物优化.
结论:
- 聚合物生产污泥有潜力在建筑材料中得到利用,特别是作为混凝土填充剂和3D打印前体.
- 在优化SCM和LWA应用方面,由于污泥成分 (例如粘土含量),仍然存在挑战.
- 为了在西班牙和挪威成功实施,需要建立监管框架和EdW标准.
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