使用CDW和传统前体的循环粘合器设计:工程和环境性能评估
Hüseyin İlcan1, Esat Koca2, Emircan Özçelikci1
1Department of Civil Engineering, Hacettepe University, Beytepe, Ankara, Turkey.
Environmental research
|November 22, 2025
概括
本研究探讨使用建筑和拆除废弃物 (CDW),如和混凝土废弃物,以创建地质聚合物粘合剂. 与传统的波特兰水泥相比,这些可持续的替代品对环境的影响明显较低.
科学领域:
- 材料科学 材料科学 材料科学
- 可持续建筑 可持续建筑
- 废物管理 废物管理
背景情况:
- 建筑和拆除废弃物 (CDW) 构成一个重大处置挑战.
- 地质聚合物粘合剂为波特兰水泥提供了一个可持续的替代品.
- 利用CDW作为地质聚合物的前体是一个新兴的研究领域.
研究的目的:
- 评估使用废料 (BW) 和混凝土废料 (CW) 的地质聚合物粘合剂系统的可行性.
- 评估混合参数和补充固材料 (SCM) 对地质聚合物特性的影响.
- 使用生命周期评估 (LCA) 将基于CDW的地质聚合物与混合波特兰水泥的环境性能进行比较.
主要方法:
- 制备具有不同CDW比例 (BW,CW) 和SCM (BFS,SF,MK) 的地质聚合物粘合剂系统.
- 工程性质的评估:在环境固化下进行流表,可建性和压力强度测试.
- 生命周期评估 (LCA) 用于量化环境影响.
主要成果:
- 增加的NaOH度和CW含量提高了流动性,但降低了可建性.
- 较高的聚合物与结合物比率提高了稳定性.
- BFS和SF提高了可加工性;MK替换减少了流量.
- 增强的压力强度,具有更高的NaOH度和Ca (((OH) 2添加.
- 基于CDW的地质聚合物实现了4-26MPa的压力强度.
- 经过LCA,CDW地质聚合物的环境影响高达69%低于波特兰水泥.
结论:
- CDW可以有效地被用作地质聚合物粘合剂系统的前体.
- 混合设计优化对于平衡可操作性,可建造性和强度至关重要.
- 基于CDW的地质聚合物为波特兰水泥提供了一个有希望的可持续替代品,具有相当大的环境效益.
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